{"title":"Electronic Focusers","description":null,"products":[{"product_id":"celestron-focus-motor","title":"Celestron Focus Motor","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds precise, hands-free electronic focusing to Celestron SCT, EdgeHD, and RASA telescopes\u003c\/li\u003e\n\u003cli\u003eDC servo motor provides 1000 steps per revolution for fine focus control\u003c\/li\u003e\n\u003cli\u003eThree power options: Celestron mount AUX port, computer USB, or external 12V DC\u003c\/li\u003e\n\u003cli\u003eControl via NexStar+ hand controller or computer with Celestron software and ASCOM drivers\u003c\/li\u003e\n\u003cli\u003eCompatible with all Celestron SCTs (6\" to 14\") made since 2006\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Focus Motor\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Focus Motor adds precise electronic focus control to your telescope, weighing just 15 oz (.42 kg). Its DC servo motor and brass spur gears deliver three distinct slew speeds up to 128°\/sec for rapid adjustments. With a resolution of 1000 steps per revolution, you can achieve critical focus for imaging or visual use without introducing vibration by touching the knob.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Focusing with a 1000-Step DC Servo Motor\u003c\/h3\u003e\n\u003cp\u003eAt the core of the Celestron Focus Motor is a responsive DC servo motor paired with robust, 35.2mm brass spur gears in a 1:1 ratio. This direct-drive design translates into zero-backlash focusing and ensures the motor's 1000 discrete steps per revolution correspond directly to focuser movement. This level of resolution is critical for astrophotography, allowing you to make minute adjustments to achieve perfectly sharp stars, far beyond what is possible by hand.\u003c\/p\u003e\n\u003cp\u003eFor visual observers, the motor eliminates image shake when focusing at high magnification, making it easier to see fine detail on planets like Jupiter or the Moon. The aluminum clamping sleeve provides a secure, non-slip connection to the telescope's focus shaft, ensuring repeatable and reliable performance session after session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3 Ways to Power: AUX, USB, and 12V DC\u003c\/h3\u003e\n\u003cp\u003eThe Focus Motor offers three distinct power and control pathways to integrate into any setup. If you use a Celestron computerized mount, simply connect the motor to an open AUX port with the supplied cable for a fully integrated solution controlled by your NexStar+ or StarSense hand controller. This is the simplest option for visual observers and those with all-Celestron setups.\u003c\/p\u003e\n\u003cp\u003eFor imagers using non-Celestron mounts or custom setups, the motor can be powered and controlled directly from a computer via its USB port, which requires at least 900mA from a USB2 or USB3 source. For permanent observatory installations, a dedicated 12V DC power jack provides the most stable power source, ensuring the motor is always ready for remote operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRemote Control with Celestron PWI and ASCOM\u003c\/h3\u003e\n\u003cp\u003eA motorized focuser is essential for remote astrophotography, and the Celestron Focus Motor is built for software control. Celestron provides a free Focuser Utility program for direct computer control, and it fully integrates with the comprehensive Celestron PWI Telescope Control Software. This allows you to manage focusing alongside your mount and camera from a single application.\u003c\/p\u003e\n\u003cp\u003eFor maximum compatibility with the wider astronomy ecosystem, the Focus Motor is supported by a dedicated ASCOM driver. This enables control from popular third-party imaging suites like N.I.N.A., Sequence Generator Pro, and Maxim DL, allowing you to incorporate automated focusing routines into your imaging plans for a completely remote, hands-off observatory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron Focus Motor compatible with my older orange-tube C8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the Focus Motor is only compatible with Schmidt-Cassegrain Telescopes (SCTs) manufactured since 2006. It is not compatible with older models, including the 5\" SCT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the Celestron Focus Motor if I don't have a Celestron mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou have two options. You can power and control it from a computer using a standard USB A-to-B cable (not included), provided the port can supply at least \u003cstrong\u003e900mA\u003c\/strong\u003e. Alternatively, you can use a separate \u003cstrong\u003e12V DC, 1A\u003c\/strong\u003e power supply, which is ideal for a permanent observatory setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Focus Motor with my 6” SCT and an Off-Axis Guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. For the 6” Schmidt-Cassegrain telescope specifically, Celestron's Off-Axis Guider (#93648) cannot be used at the same time as the focus motor due to mechanical interference between the two accessories on the rear cell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the different speed rates on the Celestron Focus Motor do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe three speed rates (\u003cstrong\u003e8°\/sec, 32°\/sec, 128°\/sec\u003c\/strong\u003e) allow you to choose the right balance of speed and precision. The fastest rate is for making large focus changes quickly, while the slowest rate provides the finest control for nailing critical focus when imaging or observing at high power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to control the Celestron Focus Motor from my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can use Celestron's free Focuser Utility or Celestron PWI software for native control. For use with third-party software like N.I.N.A. or Sequence Generator Pro, you will need to install the Celestron ASCOM driver, which is available for download from Celestron's website.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still use the manual focus knob after installing the Celestron Focus Motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the focus motor attaches directly to the focuser shaft, replacing the manual knob. All focusing is then done electronically through the hand controller or a computer. The motor provides much finer control than is possible by hand, eliminating image shake.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eDC servo motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGears\u003c\/td\u003e\n\u003ctd\u003eBrass, 1:1 gear ratio, 35.2mm diameter, 42 teeth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Shaft Coupler\u003c\/td\u003e\n\u003ctd\u003eAluminum clamping sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicroprocessor\u003c\/td\u003e\n\u003ctd\u003eNXP Kinetis series, Arm Coretex-M4 core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteps per Revolution\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Speeds\u003c\/td\u003e\n\u003ctd\u003e8°\/sec, 32°\/sec, 128°\/sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower (AUX Port)\u003c\/td\u003e\n\u003ctd\u003eVia Celestron computerized mount AUX port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower (USB Port)\u003c\/td\u003e\n\u003ctd\u003eUSB2 or USB3, requires minimum 900mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower (DC Jack)\u003c\/td\u003e\n\u003ctd\u003e12V DC, 1A, 5.5mm\/2.1mm tip positive plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAll SCTs (2006+ except 5\"), all EdgeHD, RASA 8\", RASA 36cm, 7\" Mak-Cass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e15 oz (0.42 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-Year Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFocus Motor\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAUX Port Connecting Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTethered Port Covers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Software \u0026amp; Drivers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967183745309,"sku":"CEL-94155-A","price":361.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Focus-Motor-94155-A-1__08633.1651002262.1280.1280.jpg?v=1684338335"},{"product_id":"starlight-instruments-electronic-focusing-system","title":"Starlight Instruments Electronic Focusing System","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eASCOM compliant driver for use with all major imaging software\u003c\/li\u003e\n\u003cli\u003eAdvanced automation including backlash and temperature compensation\u003c\/li\u003e\n\u003cli\u003eTactile hand controller with selectable 1, 10, or 100-step increments\u003c\/li\u003e\n\u003cli\u003eCompact control box measures just 4.13\" x 2.87\" x 1.1\"\u003c\/li\u003e\n\u003cli\u003eCompatible with HSM20, HSM30, and HSM35 stepper motors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Electronic Focusing System (EFS)\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Electronic Focusing System (EFS) is a dedicated ASCOM-compliant stepper motor controller designed for absolute focusing precision. Its compact control hub measures just 4.13\" long by 2.87\" wide, providing advanced features like temperature compensation and backlash correction without adding bulk to your imaging rig. The included hand controller allows for immediate tactile adjustments, with selectable step sizes of 1, 10, or 100 steps per detent for moving from coarse focus to critical final tweaks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 4.13\" x 2.87\" ASCOM-Compliant Digital Hub\u003c\/h3\u003e\n\u003cp\u003eAt the core of the EFS is a lightweight and robust digital hub that serves as the interface between your PC and focuser motor. It connects via a standard USB cable and is managed by a dedicated ASCOM driver, ensuring seamless integration with virtually all modern astrophotography software suites like N.I.N.A., Sequence Generator Pro, and TheSkyX.\u003c\/p\u003e\n\u003cp\u003eThe hub's small 4.13\" x 2.87\" x 1.1\" footprint makes it ideal for portable setups where space and weight are critical. All connections are logically placed, with power, USB, and hand controller inputs on the rear and the motor output on the front, keeping cable management clean and simple.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntuitive Hand Control: 1, 10, and 100-Step Adjustments\u003c\/h3\u003e\n\u003cp\u003eFor moments when you need direct, computer-free control, the EFS includes a tactile hand controller. A simple press of the central knob cycles through three resolution levels, indicated by an LED: Red for 1-step fine adjustments, Amber for 10-step increments, and Green for 100-step coarse movements. This allows you to quickly rack the focuser out to change eyepieces and then dial in perfect focus without ever touching your laptop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing: Temperature and Backlash Compensation\u003c\/h3\u003e\n\u003cp\u003eThe EFS is built for serious imaging. Its ASCOM driver enables sophisticated automation routines that directly address the two most common causes of soft stars during a long session. Backlash compensation ensures your autofocus V-curves are perfectly symmetrical and repeatable, while temperature compensation uses an external probe to automatically adjust focus as ambient temperature drops, maintaining sharp stars from dusk till dawn.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEFS vs. Focuser Boss II: A Guide to Starlight Instruments Controllers\u003c\/h3\u003e\n\u003cp\u003eStarlight Instruments offers two electronic focusing controllers, each tailored to different needs. The EFS is the streamlined, single-focuser solution perfect for portable rigs or dedicated single-scope imagers. It provides all the essential automation features in a compact, cost-effective package.\u003c\/p\u003e\n\u003cp\u003eThe Focuser Boss II, by contrast, is a full observatory-grade hub. It offers dual-focuser control, native Ethernet and optional WiFi connectivity for remote access, and a more expansive feature set for permanent installations. For imagers who need a simple, robust, and precise single-channel controller, the Electronic Focusing System is the optimal choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the Starlight Instruments EFS?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Electronic Focusing System uses an \u003cstrong\u003eASCOM driver\u003c\/strong\u003e, making it compatible with any software that adheres to the ASCOM standard. This includes popular astrophotography applications like N.I.N.A., Sequence Generator Pro (SGP), TheSkyX, Maxim DL, and more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Starlight Instruments motor do I need for my EFS and telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe correct motor depends on your focuser. The EFS is compatible with all Starlight Instruments HSM motors.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM20:\u003c\/strong\u003e Fits Feather Touch Micro Focusers, retrofit pinion assemblies, and Crayford focusers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM30:\u003c\/strong\u003e Fits 2.5\", 3.0\", and 2.0\" Rack\/Pinion focusers, as well as Astro-Physics 2.7\" focusers with the Feather Touch upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM35:\u003c\/strong\u003e Fits 3.5\" Feather Touch focusers, and Astro-Physics 3.5\" and 4.0\" focusers with the Feather Touch upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the EFS hand controller change step sizes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can change the step size by pressing the knob on the hand controller. Each press cycles through the three settings, which are confirmed by a colored LED light: \u003cstrong\u003eRed for 1 step\u003c\/strong\u003e, \u003cstrong\u003eAmber for 10 steps\u003c\/strong\u003e, and \u003cstrong\u003eGreen for 100 steps\u003c\/strong\u003e per detent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Starlight Instruments EFS run without a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While its advanced automation features require a computer running ASCOM software, the EFS can be operated manually for visual use or initial setup using only the included hand controller and a power source. This allows you to achieve precise focus at the eyepiece without being connected to a PC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) with my C11. How does the EFS prevent focus drift as it gets colder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EFS features \u003cstrong\u003etemperature compensation\u003c\/strong\u003e. When used with a temperature probe, the system monitors ambient temperature changes throughout your imaging session. As the telescope's optical tube contracts in the cold, the EFS automatically makes micro-adjustments to the focus position to counteract the thermal shift, ensuring your stars remain pinpoint sharp on every sub-exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen running an autofocus routine in N.I.N.A. on my refractor, how does the EFS ensure accuracy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EFS driver includes \u003cstrong\u003ebacklash correction\u003c\/strong\u003e. This feature commands the motor to overshoot a target position and then approach it from the same direction every time, eliminating any mechanical play or \"slop\" in the focuser's gear train. This results in highly repeatable V-curves and ensures your autofocus routine calculates the critical focus zone with maximum accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Compatibility (HSM20)\u003c\/td\u003e\n\u003ctd\u003eFeather Touch Micro Focuser, retrofit pinion assembly upgrades, and Crayford focusers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Compatibility (HSM30)\u003c\/td\u003e\n\u003ctd\u003e2.5\", 3.0\" \u0026amp; 2.0\" Feather Touch Rack\/Pinion focusers; Astro-Physics 2.7\" with FT pinion upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Compatibility (HSM35)\u003c\/td\u003e\n\u003ctd\u003e3.5\" Feather Touch focusers; Astro-Physics 3.5\" \u0026amp; 4.0\" with FT pinion upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Box Dimensions\u003c\/td\u003e\n\u003ctd\u003e4.13\" (105mm) L x 2.87\" (73mm) W x 1.1\" (28mm) H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePower, hand controller, USB (rear); focuser (front)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eASCOM driver (requires ASCOM Platform 6 or later)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand Controller Step Sizes\u003c\/td\u003e\n\u003ctd\u003e1, 10 or 100 steps per detent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomated Features\u003c\/td\u003e\n\u003ctd\u003eBacklash correction, temperature compensation, focus lock, motor braking, multiple speeds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Options\u003c\/td\u003e\n\u003ctd\u003eAC\/DC Power Supply 12V DC, DC Cigarette Plug, European Power Adapter (selected at purchase)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEFS Control Hub\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEFS Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUSB Cable (A to B)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEthernet Cable (Hub to Motor)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRJ11 Cable (Hub to Hand Controller)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n    \u003cp\u003e\u003cem\u003eNote: A compatible Starlight Instruments HSM motor and a 12V DC power supply are required and sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight_Instruments_EFS_Brochure.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.starlightinstruments.com\/installation-instructions\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty on Electronics\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"AC\/DC Power Supply 12V DC","offer_id":44967287980317,"sku":"SI-EFS-01","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"DC Cigarette Plug","offer_id":44967288013085,"sku":"SI-EFS-02","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"European Power Adapter for AC Cable","offer_id":44967288045853,"sku":"SI-EFS-03","price":434.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-EFS__77086.1656510665.1280.1280.jpg?v=1684340010"},{"product_id":"starlight-instruments-handy-stepper-motor-w-manual-focus-over-ride","title":"Starlight Instruments Handy Stepper Motor w\/ Manual Focus Over-Ride","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds automated, repeatable focusing to your telescope\u003c\/li\u003e\n\u003cli\u003eFeatures a simple manual focus override knob\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermistor for temperature-compensated focusing\u003c\/li\u003e\n\u003cli\u003eDesigned for the Starlight Instruments Focuser Boss II and EFS\u003c\/li\u003e\n\u003cli\u003eAvailable in three models (HSM20, HSM30, HSM35) for broad compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Handy Stepper Motor w\/ Manual Focus Over-Ride\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Handy Stepper Motor (HSM) adds precise, automated control to high-end focusers for critical astrophotography. Designed to integrate seamlessly with the Focuser Boss II controller, the HSM series includes the HSM20 for Feather Touch Micro and Crayford focusers, the HSM30 for 2.5\" and 3.0\" rack and pinion models, and the HSM35 for large 3.5\" and 4.0\" focusers. Each model features a built-in temperature sensor and an innovative manual override, allowing instant switching between automated and hands-on control without tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing with an Instant Manual Override\u003c\/h3\u003e\n\u003cp\u003eThe core design of the Handy Stepper Motor delivers the precision of automated focusing without sacrificing the immediate, tactile control of manual adjustment. A simple turn of the override knob on the motor housing disengages the stepper motor, allowing you to use the focuser's own knobs as you normally would. This is invaluable for initial setup, quick visual checks, or when your control computer is not connected, providing a robust and field-ready solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Temperature Compensation for Imaging Sessions\u003c\/h3\u003e\n\u003cp\u003eAs ambient temperature changes throughout an imaging session, a telescope's metal tube contracts, causing focus to shift and stars to bloat. The Handy Stepper Motor contains a built-in temperature thermistor that feeds real-time data to your Focuser Boss II or EFS controller. This enables the system to make automatic, microscopic adjustments to maintain perfect focus all night, ensuring your long-exposure images remain critically sharp from beginning to end.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHSM20, HSM30 \u0026amp; HSM35: A Motor for Every Feather Touch Focuser\u003c\/h3\u003e\n\u003cp\u003eStarlight Instruments offers the HSM in three distinct models to ensure a perfect fit and optimal torque for a wide range of high-end focusers. This component-specific approach guarantees reliable, slip-free operation whether you are controlling a lightweight visual setup or a heavy imaging train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM20 Fits:\u003c\/strong\u003e All Feather Touch Micro Focusers for SCTs, retrofit pinion assemblies, and Feather Touch Crayford focusers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM30 Fits:\u003c\/strong\u003e 2.5\", 3.0\", and 2.0\" Feather Touch Rack \u0026amp; Pinion focusers, as well as the 2.7\" Astro-Physics focuser with a Feather Touch pinion upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSM35 Fits:\u003c\/strong\u003e The largest 3.5\" Feather Touch focusers and the 3.5\" and 4.0\" Astro-Physics focusers equipped with a Feather Touch pinion upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStarlight Instruments HSM vs. PDMS: Choosing Your Motor Drive\u003c\/h3\u003e\n\u003cp\u003eStarlight Instruments offers two motor systems, the direct-drive HSM and the belt-driven Posi Drive Motor System (PDMS). The choice depends on your equipment and goals.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandy Stepper Motor (HSM):\u003c\/strong\u003e The HSM is a compact, all-in-one unit that clamps directly onto the focuser's pinion assembly. Its primary advantages are its simplicity, smaller footprint, and the signature manual override knob. It is the ideal choice for most Feather Touch focusers with standard to heavy imaging loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosi Drive Motor System (PDMS):\u003c\/strong\u003e The PDMS uses a timing belt and pulley system. It delivers higher torque for extremely heavy imaging trains and offers greater versatility for focusers that are not directly compatible with the HSM clamp. The trade-off is a slightly larger profile and a process that involves slackening the belt for manual focus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the manual focus override on the Starlight Instruments HSM?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing the manual override is immediate and requires no tools. Simply grip and turn the large override knob on the motor housing itself. This action disengages the motor's gear from the focuser's pinion shaft, allowing you to turn the focuser's coarse and fine focus knobs by hand as you normally would.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need the Focuser Boss II to use the Handy Stepper Motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003eStarlight Instruments Handy Stepper Motor\u003c\/strong\u003e is designed as a component of a larger electronic focusing system. It requires a controller like the \u003cstrong\u003eFocuser Boss II\u003c\/strong\u003e or the Starlight Instruments EFS (Electronic Focusing System) to power the motor and interpret commands from your computer software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich HSM model do I need for my Feather Touch 3.5\" focuser on a large refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor any \u003cstrong\u003e3.5\" Feather Touch focuser\u003c\/strong\u003e, you need the \u003cstrong\u003eHSM35\u003c\/strong\u003e model. This version is engineered with the correct torque and mounting bracket to handle the larger focuser body and the heavier imaging loads typically used with large refractors and astrographs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the HSM's temperature compensation improve my astrophotography of targets like the Veil Nebula (NGC 6960)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging faint, expansive targets like the Veil Nebula (NGC 6960) requires multiple long exposures over several hours. As the night air cools, your telescope's focus will drift. The \u003cstrong\u003eHSM's integrated thermistor\u003c\/strong\u003e feeds temperature data to the Focuser Boss II, which can then automatically adjust focus. This prevents stars from bloating in later subframes, ensuring every image in your final stack is as sharp as the first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main difference between the Starlight Instruments HSM and the PDMS motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is the drive mechanism. The \u003cstrong\u003eHSM (Handy Stepper Motor)\u003c\/strong\u003e is a compact, direct-drive motor that clamps onto the pinion. The \u003cstrong\u003ePDMS (Posi Drive Motor System)\u003c\/strong\u003e is a belt-drive system that offers higher torque for exceptionally heavy loads and fits some focusers that the HSM cannot. For most users with Feather Touch focusers, the HSM's simplicity and manual override are preferred.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I install the Handy Stepper Motor myself?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, installation is straightforward for most users. It typically involves removing the existing focus knobs from your Feather Touch focuser with a small hex key, mounting the HSM unit onto the pinion assembly, and tightening it in place. Starlight Instruments provides detailed instructions for the process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Compatibility\u003c\/td\u003e\n\u003ctd\u003eFocuser Boss II, Electronic Focusing System (EFS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003eFeather Touch Focusers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Models\u003c\/td\u003e\n\u003ctd\u003eHSM20, HSM30, HSM35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSM20 Fits\u003c\/td\u003e\n\u003ctd\u003eAny Feather Touch Micro Focuser, Feather Touch retrofit pinion assembly upgrade, and Feather Touch Crayford focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSM30 Fits\u003c\/td\u003e\n\u003ctd\u003eAny 2.5\", 3.0\", and 2.0\" Feather Touch Rack\/Pinion focuser, and Astro-Physics 2.7\" with Feather Touch pinion assembly upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSM35 Fits\u003c\/td\u003e\n\u003ctd\u003eAny 3.5\" Feather Touch focuser, and Astro-Physics 3.5\" and 4.0\" with Feather Touch pinion assembly upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight_Instruments_Handy_Stepper_Motor_Installation_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.starlightinstruments.com\/installation-instructions\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty on Electronics\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"HSM20","offer_id":44967288144157,"sku":"SI-HSM20","price":518.0,"currency_code":"CAD","in_stock":true},{"title":"HSM30","offer_id":44967288176925,"sku":"SI-HSM30","price":518.0,"currency_code":"CAD","in_stock":true},{"title":"HSM35","offer_id":44967288209693,"sku":"SI-HSM35","price":518.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Handy-Stepper-Motor-Manual-Focus-Over-Ride-HSM-1__99477.1596314022.1280.1280.jpg?v=1684340018"},{"product_id":"starlight-instruments-posi-drive-motor-system","title":"Starlight Instruments Posi Drive Motor System","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLifting Capacity: In excess of 56 pounds\u003c\/li\u003e\n\u003cli\u003eDrive System: Positive-engagement timing belt\u003c\/li\u003e\n\u003cli\u003eManual Override: Yes, via fine focus knob\u003c\/li\u003e\n\u003cli\u003eTemperature Sensor: Integrated for automated focus compensation\u003c\/li\u003e\n\u003cli\u003eBroad Compatibility: Fits focusers from Feather Touch, Takahashi, TEC, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Posi Drive Motor System\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Posi Drive Motor System (PDMS) is engineered for the demands of heavy, automated imaging trains, with a lifting capacity rated for in excess of 56 pounds. Designed around a high-torque stepper motor and a positive-engagement timing belt, the PDMS eliminates the risk of focuser slippage, ensuring that heavy cameras, large filter wheels, and off-axis guiders maintain perfect focus throughout an imaging session on focusers from 2.5\" to 3.5\" and larger.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e56+ Pound Lift Capacity for Automated All-Night Imaging\u003c\/h3\u003e\n\u003cp\u003eAt the core of the PDMS is a drive system that can handle imaging payloads weighing over 56 pounds without slipping or sagging. Unlike friction-based drives, the PDMS uses a timing belt that creates a direct, physical link between the motor and the focuser pinion, guaranteeing repeatable, backlash-free movement. This is critical for automated focusing routines that rely on precise, micron-level adjustments.\u003c\/p\u003e\n\u003cp\u003eFor fully autonomous operation, a thermistor is integrated directly onto the motor's circuit board. When connected to a controller like the Starlight Instruments Focuser Boss II, this sensor provides real-time temperature data, allowing your software to automatically compensate for thermal focus shift as the telescope cools overnight. This system ensures your stars remain perfectly sharp from dusk until dawn without manual intervention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e10:1 Manual Override: Fine Focus Control Without Motor Removal\u003c\/h3\u003e\n\u003cp\u003eThe PDMS-FTFF model for Feather Touch focusers incorporates a crucial override system that allows for manual focusing without disengaging the motor. You retain full use of the 10:1 fine focus knob, making it simple to perform an initial visual focus or make a quick manual adjustment at the scope. This seamless integration means you never have to choose between automated control and hands-on adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCompatibility Across 9+ Brands from Takahashi to TEC\u003c\/h3\u003e\n\u003cp\u003eWhile designed to integrate perfectly with Starlight's own Feather Touch focusers, the Posi Drive Motor system is available in specific configurations for a wide range of premium telescopes and focusers. Starlight Instruments manufactures custom mounting hardware to ensure a rigid, perfect fit with no modifications required.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Focusers Include:\u003c\/strong\u003e Feather Touch (2.5\", 3.0\", 3.5\"), Astro-Physics (2.7\", 4.0\"), Takahashi, Sky-Watcher Esprit, Celestron RASA 36cm, TEC, William Optics, Stellarvue, and Astro Tech.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePDMS vs. HSM: Choosing the Right Starlight Instruments Motor\u003c\/h3\u003e\n\u003cp\u003eStarlight Instruments offers two motor options, each suited to different applications. The Handy Stepper Motor (HSM) is a compact, direct-drive motor ideal for lighter visual setups or planetary imaging. It is simpler, more compact, and provides excellent performance for less demanding payloads.\u003c\/p\u003e\n\u003cp\u003eThe Posi Drive Motor System (PDMS) is the definitive choice for serious astrophotography with heavy equipment. Its timing belt drive and 56+ pound capacity are designed specifically to prevent any possibility of slippage under heavy, off-balance loads. If your imaging train includes a large format camera, a heavy filter wheel, and an off-axis guider, the PDMS provides the strength and positional accuracy required for uncompromising automated performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat controller do I need for the Starlight Instruments Posi Drive Motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Posi Drive Motor System requires a separate controller for operation. It is designed to work with Starlight Instruments' \u003cstrong\u003eFocuser Boss II\u003c\/strong\u003e or \u003cstrong\u003eElectronic Focusing System (EFS)\u003c\/strong\u003e. These controllers provide power, computer connectivity via ASCOM, and interpret data from the motor's integrated temperature sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the Posi Drive's timing belt system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe timing belt creates a positive, physical engagement with the focuser's drive shaft, much like a chain on a bicycle. This completely eliminates the possibility of slippage that can occur with friction-based or pressure-based motor drives, especially with heavy imaging loads or when the telescope is pointed near the zenith.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the manual override on the PDMS motor work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOn compatible models like the PDMS-FTFF, the motor includes a built-in clutch mechanism. This allows you to turn the fine-focus knob on your Feather Touch focuser by hand to make small adjustments, without needing to loosen, disengage, or remove the motor itself. The motor's gearing simply slips until you stop turning the knob, then re-engages for electronic control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PDMS handle my heavy imaging train on a Celestron RASA 36cm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The PDMS's lift capacity of over \u003cstrong\u003e56 pounds\u003c\/strong\u003e is specifically designed for instruments like the RASA 36cm that use large, heavy front-mounted imaging trains. The no-slip belt drive ensures the focuser position remains locked and repeatable, which is critical for maintaining collimation and focus on a fast optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eFor a Takahashi FSQ-106EDX4, why choose the PDMS over the HSM motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Handy Stepper Motor (HSM) is an excellent choice for lighter setups, an FSQ-106 with a large-format cooled camera, 7-position filter wheel, and rotator can easily exceed the practical limits of a direct-drive motor. The \u003cstrong\u003ePosi Drive Motor System (PDMS)\u003c\/strong\u003e is the recommended solution here, as its 56+ pound capacity and belt drive will prevent any focuser sag or shift, preserving the perfectly flat field of the Takahashi optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the built-in thermistor on the Posi Drive Motor improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe thermistor constantly measures the ambient temperature at the telescope. As the temperature drops overnight, your telescope's optical tube will contract, slightly changing the focal point. An ASCOM-compatible controller uses the data from the PDMS thermistor to make precise, periodic adjustments to the focus position, ensuring your images remain critically sharp over many hours without any manual effort.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifting Capacity\u003c\/td\u003e\n\u003ctd\u003eIn excess of 56 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Mechanism\u003c\/td\u003e\n\u003ctd\u003eTiming Belt (Posi Drive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor\u003c\/td\u003e\n\u003ctd\u003eIntegrated Thermistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Override\u003c\/td\u003e\n\u003ctd\u003eYes, via fine focus knob (on compatible models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Focuser Sizes\u003c\/td\u003e\n\u003ctd\u003e2.5\", 3.0\", true 3\", 3.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Mounting Options\u003c\/td\u003e\n\u003ctd\u003eFeather Touch 2.5\"\/3.0\", Astro-Physics 2.7\", Feather Touch 3.5\", Astro-Physics 4.0\", Astro Tech, Celestron RASA 36cm, Sky-Watcher Esprit, Stellarvue Stock Focuser, Takahashi Stock Focuser, TEC Designed Focuser, William Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n  \u003cli class=\"DAV-grid-item\"\u003e\n    \u003cdiv\u003e\n      \u003cp class=\"DAV-item-title\"\u003eNote\u003c\/p\u003e\n      \u003cp class=\"DAV-item-subtitle\"\u003eBox contents vary by selected focuser compatibility option. A controller and power supply are sold separately.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight_Instruments_PDMS-FTF_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.starlightinstruments.com\/installation-instructions\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty on Electronics\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Feather Touch 2.5\"\/3.0\" and Astro-Physics 2.7\"","offer_id":44967288897821,"sku":"SI-PDMS-FTFF-2.5","price":826.0,"currency_code":"CAD","in_stock":true},{"title":"Feather Touch 3.5\" and Astro-Physics 4.0\"","offer_id":44967288930589,"sku":"SI-PDMS-FTFF-3.5","price":826.0,"currency_code":"CAD","in_stock":true},{"title":"Astro Tech","offer_id":44967288963357,"sku":"SI-PDMS-AT","price":875.0,"currency_code":"CAD","in_stock":true},{"title":"Celestron RASA 36cm","offer_id":44967288996125,"sku":"SI-PDMS-RASA36","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"Sky-Watcher Esprit","offer_id":44967289028893,"sku":"SI-PDMS-SW","price":833.0,"currency_code":"CAD","in_stock":true},{"title":"Stellarvue Stock Focuser","offer_id":44967289061661,"sku":"SI-PDMS-SV","price":833.0,"currency_code":"CAD","in_stock":true},{"title":"Takahashi Stock Focuser","offer_id":44967289094429,"sku":"SI-PDMS-TAK","price":833.0,"currency_code":"CAD","in_stock":true},{"title":"TEC Designed Focuser","offer_id":44967289127197,"sku":"SI-PDMS-TEC","price":875.0,"currency_code":"CAD","in_stock":true},{"title":"William Optics","offer_id":44967289159965,"sku":"SI-PDMS-WO","price":875.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight-Instruments-Posi-Drive-Motor-System-SI-PDMS-1__08069.1596314024.1280.1280.jpg?v=1684339739"},{"product_id":"starlight-instruments-feather-touch-gen-ii-3-0-motorized-r-p-focuser","title":"Starlight Instruments Feather Touch Gen II 3.0\" Motorized R\u0026P Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLifts imaging trains up to 56 lb with zero slip\u003c\/li\u003e\n\u003cli\u003eAchieves 0.23 micron resolution per step for critical focus\u003c\/li\u003e\n\u003cli\u003eIntegrated Posi Drive Motor System (PDMS) with ASCOM compatibility\u003c\/li\u003e\n\u003cli\u003e10:1 dual-speed manual focus knobs for initial setup\u003c\/li\u003e\n\u003cli\u003eThree-point draw tube support system prevents tilt and image shift\u003c\/li\u003e\n\u003cli\u003eFull 360-degree rotation for precise camera framing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Feather Touch Gen II 3.0\" Motorized R\u0026amp;P Focuser\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Feather Touch Gen II 3.0\" Motorized Focuser is engineered from the ground up for automated astrophotography, supporting a massive 56 lb payload with a repeatable step resolution of just 0.23 microns. Its helical rack and pinion drive, combined with an integrated Posi Drive Motor System, delivers extremely low backlash, while the 10:1 dual-speed knobs provide precise manual control when needed. A three-point draw tube support system and full 360-degree rotation ensure your imaging train remains perfectly orthogonal to the optical axis, regardless of orientation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 56 lb Payload Capacity for Heavy Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eDesigned for the most demanding imaging setups, the Gen II focuser uses a robust helical rack and pinion drive mechanism capable of lifting and holding a 56 lb payload without flexure or slippage. The hardened stainless steel and anodized aluminum construction ensures long-term stability, even when loaded with large format cameras, heavy filter wheels, and off-axis guiders. This immense capacity eliminates a primary source of imaging artifacts, allowing your autofocus routine to perform reliably throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.23 Micron Resolution for Automated Focusing\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the Gen II is the integrated Posi Drive Motor System (PDMS), which achieves a repeatable focus position down to 0.23 microns per step. This level of precision is critical for reaching sharp focus with fast optical systems where the critical focus zone is exceptionally narrow. With its extremely low backlash and native ASCOM and TheSkyX compatibility, the focuser executes autofocus curves with accuracy, ensuring your data is consistently sharp from frame to frame. Note that an external controller, like the Starlight Instruments EFS or Focuser Boss II, is required for operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3-Point Support and a Threaded Drawtube\u003c\/h3\u003e\n\u003cp\u003eThe Gen II incorporates several features specifically for imagers to maintain a rigid, square optical train. A three-point draw tube support system actively prevents tilt as the focuser moves, a common issue with heavy cantilevered loads. The drawtube itself is threaded, providing a direct, secure connection for cameras, field flatteners, and reducers, eliminating the potential for sag inherent in compression ring systems. For framing, the entire focuser body rotates a full 360 degrees within its tube adapter, and a laser-etched millimeter scale allows for repeatable manual adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFeather Touch Gen II vs. Standard 3.0\" Focuser: An Imager's Upgrade\u003c\/h3\u003e\n\u003cp\u003eWhile a standard Feather Touch focuser with a bolt-on motor is a formidable tool, the Gen II is a purpose-built system for automation. The key difference lies in the integration and engineering choices made specifically for robotic imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Motor:\u003c\/strong\u003e The Posi Drive motor is integral to the Gen II's design, not an add-on. This results in lower backlash and higher positional accuracy than a retrofitted system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-Point Support:\u003c\/strong\u003e The Gen II's three-point drawtube support is a significant mechanical upgrade over standard designs, built to counteract the specific tilt-inducing forces of heavy, off-axis imaging trains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded Drawtube:\u003c\/strong\u003e While standard focusers use compression rings, the Gen II's threaded drawtube is the professional standard for creating a rigid, non-flexing imaging column.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat controller do I need for the Feather Touch Gen II focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Feather Touch Gen II focuser requires an external electronic controller, which is sold separately. You will need either the \u003cstrong\u003eStarlight Instruments EFS (Electronic Focusing System)\u003c\/strong\u003e or the \u003cstrong\u003eFocuser Boss II\u003c\/strong\u003e control hub to power and operate the integrated Posi Drive motor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the 0.23 micron step size on the Gen II focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003e0.23 micron\u003c\/strong\u003e step size provides extremely fine control over the focus point. This is especially critical for fast telescopes (f\/5 or lower) where the zone of sharp focus is very shallow. Such fine resolution allows autofocus software to consistently nail focus to a degree that is impossible to achieve manually, resulting in sharper stars and more detailed images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 56 lb lifting capacity of the Feather Touch Gen II benefit my imaging rig with a large refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA heavy imaging train on a large refractor—consisting of a large-format cooled CMOS or CCD camera, a 7-position filter wheel, an off-axis guider, and corrective optics—can easily exceed 15-20 lbs. The \u003cstrong\u003e56 lb capacity\u003c\/strong\u003e of the Gen II provides a massive safety margin, ensuring the focuser never slips or droops, even when the telescope is pointed near the zenith. This prevents focus shift and tilt, which are common sources of elongated stars at the edge of the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still focus the Feather Touch Gen II manually?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Feather Touch Gen II retains the signature manual \u003cstrong\u003e10:1 dual-speed focus knobs\u003c\/strong\u003e. This allows you to make coarse adjustments quickly for initial setup or eyepiece use, and then use the fine-focus knob for precise manual adjustments before turning control over to your autofocus software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between the Feather Touch Gen II and a standard Feather Touch with an add-on motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is that the Gen II is an \u003cstrong\u003eintegrated system\u003c\/strong\u003e designed for robotic imaging. Key advantages of the Gen II include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-point drawtube support\u003c\/strong\u003e to prevent tilt under heavy loads.\u003c\/li\u003e\n\u003cli\u003eA \u003cstrong\u003ethreaded drawtube\u003c\/strong\u003e for a more secure, flex-free connection to your camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtremely low backlash\u003c\/strong\u003e from the factory-integrated Posi Drive motor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA standard focuser with an add-on motor is excellent, but the Gen II is engineered specifically to eliminate the subtle mechanical issues that can affect advanced, automated imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Feather Touch Gen II to my specific telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo mount the focuser, you will need a telescope-specific \u003cstrong\u003etube adapter ring\u003c\/strong\u003e. Starlight Instruments makes a wide variety of adapters for most commercial telescopes, including refractors, Ritchey-Chrétiens, and SCTs. You will also need to select the appropriate \u003cstrong\u003eend cap\u003c\/strong\u003e to connect your camera or accessories to the focuser's drawtube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifting Capacity\u003c\/td\u003e\n\u003ctd\u003e56 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.23 micron per step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Drive\u003c\/td\u003e\n\u003ctd\u003eHelical rack and pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Support\u003c\/td\u003e\n\u003ctd\u003eThree-point draw tube support system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Interface\u003c\/td\u003e\n\u003ctd\u003eThreaded, for camera, spacers and corrective optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003eExtremely low, for automated focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Drive Compatibility\u003c\/td\u003e\n\u003ctd\u003eASCOM; direct support in TheSkyX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Reduction Ratio\u003c\/td\u003e\n\u003ctd\u003e10:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Focus Knobs\u003c\/td\u003e\n\u003ctd\u003eDual speed coarse\/fine, anodized aluminum fine focus knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation\u003c\/td\u003e\n\u003ctd\u003e360 degrees, PTFE-lined tube adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Scale\u003c\/td\u003e\n\u003ctd\u003eMillimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinderscope Mounting\u003c\/td\u003e\n\u003ctd\u003eTwo sets of #8-32 UNC threaded holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Collimation\u003c\/td\u003e\n\u003ctd\u003e3 set screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHardened stainless steel, steel and anodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Baffling\u003c\/td\u003e\n\u003ctd\u003eGlare-resistant black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet Screws\u003c\/td\u003e\n\u003ctd\u003eTipped stainless steel, gentle on eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA (designed, machined and assembled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Draw Tube Travel\u003c\/td\u003e\n\u003ctd\u003e1.5\", 3.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight_Instruments_2.5in_3.0in_and_True_3.0in_Feather_Touch_Focuser_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.starlightinstruments.com\/installation-instructions\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty on Electronics\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"1.5\" Travel","offer_id":44967294992669,"sku":"SI-FTF3015B-A GEN II-PDMS","price":1743.0,"currency_code":"CAD","in_stock":true},{"title":"3.5\" Travel","offer_id":44967295025437,"sku":"SI-FTF3035B-A-GEN II-PDMS","price":1785.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Feather-Touch-3-0-inch-Diameter-Dual-Speed-Focuser-1-5-inch-Draw-Tube-Travel-and-Brake-FTF3015B-AGENII-PDMS-1__66242.1596314034.1280.1280.jpg?v=1684339778"},{"product_id":"starlight-instruments-focus-motor-for-redcat-spacecat","title":"Starlight Instruments Focus Motor for RedCat\/SpaceCat","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds electronic focus control to William Optics RedCat\/SpaceCat telescopes\u003c\/li\u003e\n\u003cli\u003eBased on the proven Starlight Instruments Handy Stepper Motor (HSM)\u003c\/li\u003e\n\u003cli\u003eEnables automated, repeatable focusing for astrophotography\u003c\/li\u003e\n\u003cli\u003eRequires a Starlight Instruments EFS or Focuser Boss II controller\u003c\/li\u003e\n\u003cli\u003eEliminates focus shift from manual helical focuser adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Focus Motor for RedCat\/SpaceCat\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments SI-RCEF Focus Motor brings automated, high-precision focusing to the helical focuser of the William Optics RedCat and SpaceCat 51mm astrographs. By motorizing the manual focuser, this system allows you to achieve critical focus using software control, eliminating image shift and enabling advanced automated imaging routines that are impossible with manual adjustment alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing for the RedCat\/SpaceCat 51mm\u003c\/h3\u003e\n\u003cp\u003eThe William Optics RedCat 51mm is a premier wide-field imaging instrument, but its manual helical focuser can be challenging for achieving the perfect, repeatable focus required for serious astrophotography. This Starlight Instruments motor drive replaces manual guesswork with robotic precision, making it an essential upgrade for imagers.\u003c\/p\u003e\n\u003cp\u003eBased on a modified version of the reliable Handy Stepper Motor (HSM), the SI-RCEF provides the fine, backlash-free adjustments necessary to nail focus across temperature changes and between filter swaps. This allows your imaging software to run autofocus V-curves, ensuring your stars remain perfectly sharp throughout the entire night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Dedicated Starlight Instruments Ecosystem\u003c\/h3\u003e\n\u003cp\u003eThis focus motor is designed to integrate seamlessly into the Starlight Instruments control ecosystem. A key trade-off for its precision is that it cannot be operated as a standalone device; it requires either the Starlight Instruments Electronic Focusing System (SI-EFS) or the Focuser Boss II controller to function.\u003c\/p\u003e\n\u003cp\u003eThis requirement ensures that the motor operates with the sophisticated backlash compensation, temperature compensation, and ASCOM-compliant software control that Starlight Instruments is known for. By connecting to a dedicated controller, you gain access to a robust platform for managing your entire imaging workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eChoosing Your Controller: EFS vs. Focuser Boss II\u003c\/h3\u003e\n\u003cp\u003eThe choice between the EFS and Focuser Boss II depends on the scale of your imaging setup. Both provide flawless control for the RedCat motor, but serve different needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Focusing System (EFS):\u003c\/strong\u003e This is the ideal choice for a streamlined, single-focuser setup. The compact control box and simple hand controller are perfect for portable rigs where the RedCat is the primary instrument. It provides full ASCOM compatibility for computer control in a minimalist package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser Boss II:\u003c\/strong\u003e If your RedCat is part of a larger observatory setup or you plan to control multiple focusers (e.g., a main scope and a guidescope), the Focuser Boss II is the superior hub. It offers Ethernet and optional WiFi connectivity, can control a second focuser, and features a built-in web server for control from any device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Starlight Instruments Focus Motor for the RedCat?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts purpose is to replace manual focusing on the William Optics RedCat\/SpaceCat 51mm telescopes with \u003cstrong\u003eprecise, repeatable electronic focus control\u003c\/strong\u003e. This is critical for astrophotography, as it allows autofocusing software to maintain perfect focus as temperatures change overnight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich controller do I need for the RedCat Focus Motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must use a Starlight Instruments controller. You have two options: the \u003cstrong\u003eStarlight Instruments Electronic Focusing System (SI-EFS)\u003c\/strong\u003e for single-focuser setups, or the more advanced \u003cstrong\u003eFocuser Boss II\u003c\/strong\u003e, which can control multiple devices and offers network connectivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this motor work with other helical focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the SI-RCEF motor assembly is specifically designed and machined to fit the helical focuser of the \u003cstrong\u003eWilliam Optics RedCat 51mm and SpaceCat 51mm\u003c\/strong\u003e telescopes only. It is not a universal motor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the RedCat Focus Motor improve imaging of faint targets like the California Nebula (NGC 1499)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor long-exposure projects like NGC 1499, temperature drops can cause focus to drift, softening your images. With this motor and an autofocus routine in software like NINA or SGP, your system can automatically run a focus check every hour or after a filter change, ensuring every sub-exposure is perfectly sharp and maximizing the detail you capture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still focus my RedCat 51mm manually with the motor installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Starlight Instruments Handy Stepper Motor (HSM) family, on which this motor is based, typically includes a manual override feature. By rotating the motor housing, you can disengage the gears for manual adjustment. This is useful for initial setup or visual use without powering on the controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs installing the Starlight Instruments Focus Motor on my RedCat difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward for users comfortable with basic tools. The motor assembly is designed to clamp securely onto the telescope's helical focuser mechanism. Starlight Instruments provides detailed instructions to guide you through the process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Starlight_Instruments_Handy_Stepper_Motor_Installation_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.starlightinstruments.com\/installation-instructions\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty on Electronics\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967298924829,"sku":"SI-RCEF","price":371.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-SI-RCEF-SI-RCEF-1__56282.1596314053.1280.1280.png?v=1684339923"},{"product_id":"baader-steeldrive-ii-motor-focuser-w-controller","title":"Baader Steeldrive II Motor Focuser w\/ Controller","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHandles heavy imaging loads up to 8 kg\u003c\/li\u003e\n\u003cli\u003eAchieves a focusing resolution of 2.5µm\u003c\/li\u003e\n\u003cli\u003eBacklash-free toothed belt drive system\u003c\/li\u003e\n\u003cli\u003eStandalone controller with keypad for manual, computer-free operation\u003c\/li\u003e\n\u003cli\u003eIntegrated 10W PWM output for intelligent dew heater control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Steeldrive II Motor Focuser w\/ Controller\u003c\/h2\u003e\n\u003cp\u003eThe Baader Steeldrive II motor focuser is an automated focusing platform designed to handle heavy imaging payloads up to 8 kg with a precision of 2.5µm per step. Its high-torque stepper motor uses a backlash-free timing belt, while the external controller provides standalone intelligence, including automatic temperature compensation from up to two sensors. The system also integrates a 10W power output, allowing it to double as an intelligent controller for a dew heater, maintaining optical temperature with an accuracy of +\/-0.1 °C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBacklash-Free Drive: A Timing Belt System for 8 kg Payloads\u003c\/h3\u003e\n\u003cp\u003eThe core of the Steeldrive II is a high-torque stepper motor that connects to your focuser's fine-adjustment knob via a toothed timing belt. This direct-drive design completely eliminates the backlash and potential failure points associated with gearbox-driven motors. It ensures every command from the controller results in precise, repeatable movement, capable of quickly and accurately positioning imaging trains weighing up to 8 kg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStandalone Intelligence: 3 Manual Focusing Modes\u003c\/h3\u003e\n\u003cp\u003eUnlike focus motors where the electronics are integrated into the motor housing, the Steeldrive II's \"brain\" resides in a separate, dedicated hand controller. This allows for complete computer-free operation in the field, with three distinct manual modes for vibration-free focusing at the telescope.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal Mode:\u003c\/strong\u003e The focuser moves as long as a key is held down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJogging Mode:\u003c\/strong\u003e Each key press moves the focuser a user-defined distance (e.g., 0.1 mm), configured in the SteelGo software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Step Mode:\u003c\/strong\u003e A single key press initiates the smallest possible movement of approximately 2.5 micrometers for critical final adjustments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAbsolute Positioning with a 2.5µm Resolution\u003c\/h3\u003e\n\u003cp\u003eThe Steeldrive II achieves repeatable, absolute positioning through a contactless, wear-free hall-effect homing sensor. When paired with a small magnet on the focuser's drawtube, it enables the system to return to saved positions with 2.5µm accuracy. Even without the sensor, the controller stores the focuser's absolute position in a persistent EEPROM buffer, which is reloaded on startup unless the focuser was moved manually while powered off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual-Sensor Temperature Compensation and 10W Dew Control\u003c\/h3\u003e\n\u003cp\u003eThis system offers a sophisticated solution for managing thermal focus shift and dew. You can connect two digital temperature sensors simultaneously—one to the motor and one to the controller—to measure different points on your telescope. The controller can use a single sensor or the average of both to automatically compensate for temperature changes, a feature that can run standalone after initial setup.\u003c\/p\u003e\n\u003cp\u003eFurthermore, the controller includes a 12V\/1A power output, capable of driving a dew heater up to 10W. You can program a target temperature, and the Steeldrive II will intelligently manage the heater to keep optics just above the dew point, preventing moisture without introducing excess heat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGerman Engineering: SteelGo Software and 0.7W Power Draw\u003c\/h3\u003e\n\u003cp\u003eAll mechanical components are CNC-milled from aluminum, and the electronics are designed, manufactured, and coated in Germany for durability. The companion SteelGo software provides a comprehensive interface for calculating temperature compensation factors and configuring all system parameters. When idle, the motor current is automatically reduced, allowing the Steeldrive II to hold its position while consuming only about 0.7 W of power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Baader Steeldrive II different from other motor focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Steeldrive II is a complete focusing platform, not just a motor. Its key differentiators are a \u003cstrong\u003eseparate intelligent hand controller\u003c\/strong\u003e for computer-free operation, a \u003cstrong\u003ebacklash-free timing belt drive\u003c\/strong\u003e capable of handling 8 kg loads, and an \u003cstrong\u003eintegrated 10W PWM output\u003c\/strong\u003e for intelligent dew heater control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Steeldrive II achieve backlash-free focusing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstead of using gearboxes which can introduce play, the Steeldrive II employs a high-torque stepper motor connected directly to your focuser's fine-adjustment knob via a \u003cstrong\u003etoothed timing belt\u003c\/strong\u003e. This direct engagement eliminates backlash, ensuring precise and repeatable positioning with a resolution of 2.5 micrometers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Steeldrive II handle my heavy imaging setup on a Baader Steeltrack focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The Steeldrive II is designed to move loads up to \u003cstrong\u003e8 kg\u003c\/strong\u003e with high precision across the entire range of focuser travel. This makes it ideal for heavy setups that include large cameras, filter wheels, and off-axis guiders, especially when paired with Baader's own Steeltrack or Diamond Steeltrack focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a computer to use the Steeldrive II's temperature compensation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e While the temperature compensation factor is initially calculated using the SteelGo software on a PC, the value is saved directly to the Steeldrive II controller. This allows the system to run automatic temperature compensation completely \u003cstrong\u003estandalone\u003c\/strong\u003e, making it perfect for field use without a connected laptop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow should I set up the dual temperature sensors on my SCT for the best focus compensation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor optimal results on a Schmidt-Cassegrain telescope, you can place one sensor near the primary mirror and the second near the corrector plate or on the optical tube. The Steeldrive II controller can then be configured to use the \u003cstrong\u003eaverage of both sensors\u003c\/strong\u003e, providing a more accurate temperature reading of the entire optical system to compensate for thermal focus shift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew heater can I control with the Baader Steeldrive II?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Steeldrive II features a 12V\/1A power output capable of driving common dew heater straps up to \u003cstrong\u003e10W\u003c\/strong\u003e. Using an optional adapter cable, you can set a target temperature for one of the sensors, and the controller will intelligently power the heater to keep your optics just above the dew point, preventing dew without overheating the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocusing Resolution\u003c\/td\u003e\n\u003ctd\u003e2.5 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive System\u003c\/td\u003e\n\u003ctd\u003eToothed Belt Drive (Backlash-Free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHoming Sensor\u003c\/td\u003e\n\u003ctd\u003eContactless Hall-Effect Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor Inputs\u003c\/td\u003e\n\u003ctd\u003e2x Digital (1 sensor included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDew Heater Output\u003c\/td\u003e\n\u003ctd\u003e12V \/ 1A (10W Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption (Holding)\u003c\/td\u003e\n\u003ctd\u003e~0.7 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eCNC-milled Aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.73\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eSteeldrive Mark II Control unit, incl. 3m USB-cable, 12V\/1.5A power supply, Steeldrive Mark II Motor unit, incl. 1m connection cable, Velcro tapes (cable ties) for strain-relieving cable management, Allen key (2 mm) one temperature sensor with 1m cable,\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eSteelGo II Software (Download)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelDrive_II_Controller_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelDrive II Controller Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelDrive_II_Technical_Documentation.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelDrive II Technical Documentation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelGo_II_Software_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelGo II Software Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelDrive_II_Motor_Unit_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelDrive II Motor Unit Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967371931933,"sku":"BAA-2957165","price":969.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-Steeldrive-II-Motor-Focuser-with-Controller-1__71758.1597111044.1280.1280.jpg?v=1684341511"},{"product_id":"pegasus-motor-focus-kit-v2-universal","title":"Pegasus Motor Focus Kit v2 - Universal","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecise 0.06° step size for critical focusing\u003c\/li\u003e\n\u003cli\u003eHigh-torque motor lifts over 6 kg of imaging equipment\u003c\/li\u003e\n\u003cli\u003eUniversal L-shaped bracket fits a wide range of focusers\u003c\/li\u003e\n\u003cli\u003eIncludes 5 motor couplers for shafts from 4mm to 8mm\u003c\/li\u003e\n\u003cli\u003eRJ45 connector with Robofocus-compatible pinout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePegasus Astro Motor Focus Kit v2 Universal\u003c\/h2\u003e\n\u003cp\u003eThe Pegasus Astro Motor Focus Kit v2 Universal delivers automated, repeatable focusing with its high-resolution geared motor capable of a 0.06-degree step size. Its high-torque design can lift over 6 kg of imaging equipment, while the included set of five motor couplers accommodates nearly any focuser shaft from 4mm to 8mm. Please note, this kit requires a separate motor controller such as the Pegasus Astro Dual Motor Focus Controller or Ultimate Powerbox series to operate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHigh-Torque Motor: 0.06° Steps and Over 6 kg of Lifting Power\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the kit is a powerful, high-resolution geared stepper motor engineered for the demands of modern astrophotography. With a precise step size of 0.06 degrees, you can achieve critical focus that is essential for high-resolution planetary imaging or teasing out the finest details in faint deep-sky objects. The motor's gearbox generates enough torque to lift more than 6 kg, easily handling heavy image trains with large cameras, filter wheels, and off-axis guiders without slipping. The low-backlash design ensures that autofocus routines run accurately, with any minimal play easily managed by standard imaging software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal L-Bracket: Adapts to Nearly Any Focuser\u003c\/h3\u003e\n\u003cp\u003ePhysical compatibility is solved with a robust, black-anodized aluminum L-shaped bracket that resists flexure under load. The bracket features multiple slotted rails, allowing you to position the motor perfectly for alignment with your focuser's shaft. For low-profile focusers, such as those found on many Newtonian reflectors, the standard lower part of the bracket can be swapped for an included slimmer rail, ensuring a perfect fit without adding unnecessary height.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eProven Compatibility from Baader to Takahashi\u003c\/h3\u003e\n\u003cp\u003eThis kit has been successfully installed on an extensive list of the most popular focusers in the astronomy market, removing the guesswork from your setup. Confirmed compatibility includes, but is not limited to, focusers from Baader (Diamond Steeltrack), Explore Scientific, MoonLite, Skywatcher (Esprit Series), and Starlight Instruments (Feathertouch). It also fits a wide range of Takahashi focusers, including the FS-60, TSA-120, and FSQ series, as well as models from Stellarvue, Vixen, and William Optics, making it one of the most adaptable motor focus solutions available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMotor Focus Kit v2 vs. ZWO EAF: Torque and Universal Fit\u003c\/h3\u003e\n\u003cp\u003eCompared to other popular focusers like the ZWO EAF, the Pegasus Astro Motor Focus Kit v2 distinguishes itself with superior lifting capacity and broader, more adaptable mounting hardware. While the EAF is rated for around 5 kg, the Pegasus kit's ability to lift over 6 kg provides greater peace of mind for users with heavy, high-end imaging setups. Furthermore, the Pegasus L-bracket and included couplers are designed from the ground up for universal fitment across dozens of brands, whereas other systems may require more specific, model-dependent adapters. The ZWO EAF's main advantage lies in its seamless integration with the ASIAIR ecosystem, which may be a deciding factor for users already committed to that platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat else do I need to use the Motor Focus Kit v2 Universal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Motor Focus Kit v2 requires a separate motor controller to function. It is fully compatible with Pegasus Astro controllers such as the \u003cstrong\u003eDual Motor Focus Controller\u003c\/strong\u003e, \u003cstrong\u003eUltimate Powerbox (v1, v2, and v3)\u003c\/strong\u003e, and the \u003cstrong\u003eeXternal Motor Controller\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Motor Focus Kit v2 fit my Starlight Feathertouch focuser on a TEC140?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the kit has been confirmed to fit all Starlight Instruments Feathertouch focusers, from 2-inch to 3.5-inch models. The included hardware and bracket are designed for a straightforward installation on these high-end focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Motor Focus Kit v2 on my Skywatcher Esprit 100ED for planetary imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The kit is a perfect match for the Skywatcher Esprit series. The fine \u003cstrong\u003e0.06° step size\u003c\/strong\u003e provides the precise control needed for achieving critical focus at the high magnifications required for imaging Jupiter's cloud bands or the Cassini Division in Saturn's rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Motor Focus Kit v2 handle backlash?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe motor's gearbox is engineered for very low backlash. Any small residual amount is consistent and can be easily measured and compensated for within popular astrophotography software like NINA, Sequence Generator Pro (SGP), or Maxim DL.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy focuser shaft is 7mm. Does the Motor Focus Kit v2 include a coupler for it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The kit includes five different solid motor couplers with bore sizes to fit focuser shafts from \u003cstrong\u003e4mm to 8mm\u003c\/strong\u003e in diameter. A 7mm shaft is fully supported.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to use my focuser's manual brake with the Motor Focus Kit v2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The motor's powerful gearbox has a high holding torque that acts as a brake, preventing the focuser from moving even with heavy loads. You should disengage your focuser's manual brake to allow the motor to move freely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution geared stepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Size\u003c\/td\u003e\n\u003ctd\u003e0.06 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifting Capacity\u003c\/td\u003e\n\u003ctd\u003eGreater than 6 kg (per cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003eLow (software compensatable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eRJ45 (Robofocus compatible pinout)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Couplers\u003c\/td\u003e\n\u003ctd\u003e5x couplers for shaft sizes 4mm to 8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMotor with high-resolution gearbox\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUniversal L-shaped bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSlimmer rail for L-shaped bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMotor Couplers (for 4mm to 8mm shafts)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 5\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAssorted screws and spacers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 set\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Pegasus_Astro_Motor_Focus_Kit_Universal_Installation_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/pegasusastro.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":44967628570909,"sku":"PEG-MFKv2-UNIV","price":213.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-MFKv2-UNIV__88660.1599406264.1280.1280.jpg?v=1684344744"},{"product_id":"pegasus-motor-focus-kit-zero-celestron-sct-edgehd-rasa","title":"Pegasus Motor Focus Kit Zero - Celestron SCT, EdgeHD \u0026 RASA","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMotor Focus Kit SCT has been replaced by the Motor Focus Kit Zero. Zero allows backlash free movement and is way faster than older motor. This faster motor will be particularly usefull for customers who noticed the slowness of the older version of the motor.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFocus accurate and fast your \u003c\/span\u003e\u003cstrong\u003eCelestron SCT telescope \u003c\/strong\u003e\u003cspan\u003eusing our powerful \u003c\/span\u003e\u003cstrong\u003eMotor Focus Kit Zero\u003c\/strong\u003e\u003cspan\u003e. This \u003c\/span\u003e\u003cstrong\u003efast and zero backlash\u003c\/strong\u003e\u003cspan\u003e stepper motor has the required torque to focus of your SCT telescope with great precision.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePulley and Belt design allows the motor to \u003c\/span\u003e\u003cstrong\u003estay away\u003c\/strong\u003e\u003cspan\u003e from your filter wheel (and not collide with it) when you use a focal reducer. Its sophisticated SCT bracket design (margarita style) can fit to all new Celestron SCTs (Classic \/ Edge) and RASA series.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: You will need a stepper controller to drive the motor. Check our Dual Motor Focus Controller\u003c\/strong\u003e\u003c\/p\u003e\u003ch3 id=\"mce_0\"\u003eZero backlash stepper motor\u003c\/h3\u003e\u003cp\u003eEmbedded bipolar stepper motor provides a zero backlash drive. Motor is very fast and allows you to\u003cstrong\u003e quickly move\u003c\/strong\u003e from any focus point to another.\u003c\/p\u003e\u003cp\u003eA special shaped black anodised aluminium bracket, hard to bend, can be attached to most of the Celestron SCT telescopes. We have successfully installed it on:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; EdgeHD\u003c\/strong\u003e 6, 8, 9.25 (SKU:PEG-MFKZERO-SCT68925)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; Edge HD\u003c\/strong\u003e 11 (SKU:PEG-MFKZERO-SCT11)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; Edge HD\u003c\/strong\u003e 14 (SKU:PEG-MFKZERO-SCT14)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eRASA\u003c\/strong\u003e 8 (SKU: PEG-MFKZERO-SCT68925)\u003c\/li\u003e\n\u003cli\u003eCellestron \u003cstrong\u003eRASA\u003c\/strong\u003e 11 (V2 – For V1 you will need Celestron Retrofit Kit) (SKU:PEG-MFKZERO-SCT11)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eRASA\u003c\/strong\u003e 14” (SKU:PEG-MFKZERO-SCT14)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Pegasus Astro","offers":[{"title":"C6\/8\/9.25 SCT\"","offer_id":44967628701981,"sku":"PEG-MFKv2-SCT68925","price":275.0,"currency_code":"CAD","in_stock":true},{"title":"C11 SCT \u0026 EdgeHD","offer_id":44967628734749,"sku":"PEG-MFKv2-SCT11","price":275.0,"currency_code":"CAD","in_stock":true},{"title":"C14 SCT\"","offer_id":44967628767517,"sku":"PEG-MFKv2-SCT14","price":275.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-MFKZERO__60205.1614197334.1280.1280.jpg?v=1684344747"},{"product_id":"pegasus-focuscube-zero-celestron-sct-edgehd-rasa","title":"Pegasus FocusCube Zero - Celestron SCT, EdgeHD \u0026 RASA","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFocusCube SCT has been replaced by the Focus Cube Zero. Zero allows backlash free movement and is way faster than older motor. This faster motor will be particularly usefull for customers who noticed the slowness of the older version of the motor.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFocus fast, reliable and accurate your telescope by using the “\u003c\/span\u003e\u003cstrong\u003eFocusCube\u003c\/strong\u003e\u003cspan\u003e 2″. The evolution of technology in astronomy requires a system which will assist the focusing of the telescope with great accuracy. Fast optics and modern camera devices require automatic focusing in every small period of time as temperature can affect focal length and modify the optimal focus position. Pegasus \u003c\/span\u003e\u003cstrong\u003eFocusCube\u003c\/strong\u003e\u003cspan\u003e has been developed to meet all of these requirements.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eDesigned in high quality with modern electronics, FocusCube can provide digital precise focus control from a PC. Device includes a stepper motor for absolute position focusing. Electronics and stepper motor are enclosed in a compact sized box.\u003c\/p\u003e\u003cp\u003eStepper motor provides high speed, focus accuracy and\u003cstrong\u003e zero backlash\u003c\/strong\u003e. \u003cstrong\u003eYou only need this device to focus\u003c\/strong\u003e! Attach the \u003cstrong\u003eFocusCube Zero\u003c\/strong\u003e to your SCT telescope, plug the power, USB cable, download ASCOM drivers or standalone software and you are ready to go\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIMPORTANT NOTE\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFocusCube is a standalone device and includes controller functionality. \u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNo physical hand controller is included or required.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDO NOT pair it with the Dual Motor Focus Controller or any other controller in the market.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDO NOT connect this RJ45 port to the Ultimate Powerbox RJ45 Stepper Output\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe RJ45 port at the back is only for the hand controller or the included temperature sensor.\u003c\/span\u003e\u003c\/p\u003e\u003ch3 id=\"mce_0\"\u003eZero backlash stepper motor\u003c\/h3\u003e\u003cp\u003e\u003cspan\u003eEmbedded bipolar stepper motor provides a zero backlash movement. Motor is very fast and allows you to\u003c\/span\u003e\u003cstrong\u003e quickly move\u003c\/strong\u003e\u003cspan\u003e from any focus point to another.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/yLZty8VAp-s\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch3\u003eTwo diferent bracket versions\u003c\/h3\u003e\u003cp\u003eYou can choose between:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUniversal L Bracket\u003c\/li\u003e\n\u003cli\u003eSCT Bracket\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cspan\u003eSCT Bracket fits to Celestron C Series, Celestron Edge and Celestron RASA telescopes. \u003cstrong\u003eWe provide three SCT versions\u003c\/strong\u003e. The difference is in the metal pulley bore diameter \u0026amp; the screw length in the package. Please make sure you have selected the correct type!\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; EdgeHD\u003c\/strong\u003e 6, 8, 9.25 (SKU:PEG-FC2-SCT68925)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; Edge HD\u003c\/strong\u003e 11 (SKU:PEG-FC2-SCT11)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eClassic \u0026amp; Edge HD\u003c\/strong\u003e 14 (SKU:PEG-FC2-SCT14)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eRASA\u003c\/strong\u003e 8 (SKU: PEG-FC2-SCT68925)\u003c\/li\u003e\n\u003cli\u003eCellestron \u003cstrong\u003eRASA\u003c\/strong\u003e 11 (V2 – For V1 you will need Celestron Retrofit Kit) (SKU:PEG-FC2-SCT11)\u003c\/li\u003e\n\u003cli\u003eCelestron \u003cstrong\u003eRASA\u003c\/strong\u003e 14” (SKU:PEG-FC2-SCT14)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTemperature Probe\u003c\/h3\u003e\u003cp\u003eAn external digital temperature sensor input is located near the motor connector. A digital probe of one meter (3 feet) length is supplied. The probe can be placed near the focuser so the exact temperature of the focuser \/ environment can be seen through the supplied software or ASCOM driver \u003cstrong\u003e(probe is always included)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Temperature_Sensor_RJ45.jpg?v=1684344731\" alt=\"Temperature Probe\" width=\"400\" height=\"400\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eExpansion Port \/ Manual Focus (optional accessory)\u003c\/h3\u003e\u003cp\u003eFocusCube includes an expansion RJ45 port at the back of the enclosure.  This port provides input for the temperature sensor. An optional hand controller for manual focus control can be acquired for those who might want to add this functionality.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_Hand_Controller_FocusCube_1.jpg?v=1684344732\" alt=\"Hand Controller\" width=\"500\" height=\"500\"\u003e\u003c\/p\u003e\u003ch3\u003eASCOM supported\u003c\/h3\u003e\u003cp\u003eThe controller is fully compatible with latest ASCOM 6.4.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Software_1.jpg?v=1684344734\" alt=\"FocusCube Software 1\" width=\"345\" height=\"219\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Software_2.jpg?v=1684344735\" alt=\"FocusCube Software 2\" width=\"400\" height=\"504\"\u003e\u003c\/p\u003e\u003ch3\u003eINDI (Open Astronomy Instrumentation) supported\u003c\/h3\u003e\u003cp\u003ePegasus Focuscube is fully compatible with INDI. Driver is included in stable libindi.\u003cbr\u003eOfficial Indi Driver : \u003ca href=\"http:\/\/indilib.org\/devices\/focusers\/pegasus-dmfc.html\"\u003ehttp:\/\/indilib.org\/devices\/focusers\/pegasus-dmfc.html\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_Indi.jpg?v=1684344715\" alt=\"Indi\" width=\"185\" height=\"185\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Software_3.jpg?v=1684344737\" alt=\"FocusCube Software 3\" width=\"731\" height=\"442\"\u003e\u003c\/p\u003e\u003ch3\u003eStandalone program supported\u003c\/h3\u003e\u003cp\u003eThe controller can be operated by the standalone software. \u003cbr\u003e(Only available for Windows)\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Software_4.jpg?v=1684344738\" alt=\"FocusCube Software \" width=\"768\" height=\"652\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_FocusCube_Software_5.jpg?v=1684344740\" alt=\"FocusCube Software\" width=\"442\" height=\"438\"\u003e\u003c\/p\u003e\u003ch3\u003eUSB cable are included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eA 1.8m USB Type B cable\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eSix solid motor couplers are included\u003c\/h3\u003e\u003cp\u003eSix solid, different bore size, motor couplers are provided so you can select the coupler that fits to your focuser’s shaft. Choose between 3mm to 8mm couplers. \u003cstrong\u003eAll of them are included in the “Universal” package.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eFirmware upgrade support\u003c\/h3\u003e\u003cp\u003eController firmware supports re-programming via the USB 2.0 connection using upgrade software, for future upgrades which may become available. We constantly receive feedback from our customers and keep updating the firmware and software with new features.\u003c\/p\u003e\u003ch3\u003eCompact size\u003c\/h3\u003e\u003cp\u003e52 x 58 x 35 mm \/ Weight 280g\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Pegasus Astro","offers":[{"title":"C6\/8\/9.25 SCT, RASA 8","offer_id":44967629685021,"sku":"PEG-FCZERO-SCT68925","price":523.0,"currency_code":"CAD","in_stock":true},{"title":"C11 SCT, EdgeHD, RASA 11","offer_id":44967629717789,"sku":"PEG-FCZERO-SCT11","price":523.0,"currency_code":"CAD","in_stock":true},{"title":"C14 SCT, RASA 14","offer_id":44967629750557,"sku":"PEG-FCZERO-SCT14","price":523.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-FCZERO__55006.1614195381.1280.1280.jpg?v=1684344762"},{"product_id":"primalucelab-esatto-2-robotic-microfocuser","title":"PrimaLuceLab ESATTO 2\" Robotic microFocuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eRobotic microfocuser with integrated motor and controller\u003c\/li\u003e\n\u003cli\u003eLow-profile body ideal for systems with limited backfocus\u003c\/li\u003e\n\u003cli\u003eSupports heavy astrophotography payloads without flexure\u003c\/li\u003e\n\u003cli\u003eControl via USB-C from a PC or EAGLE, or wirelessly via WiFi\u003c\/li\u003e\n\u003cli\u003eDedicated ARCO port for single-cable camera rotator integration\u003c\/li\u003e\n\u003cli\u003eASCOM driver for compatibility with third-party automation software\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ESATTO 2\" Robotic microFocuser\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 2\" Robotic microFocuser is an all-in-one focusing solution, integrating a powerful motor and advanced electronics directly into a compact focuser body. It provides the high-precision, repeatable focus adjustments required for modern astrophotography, supporting heavy camera payloads without introducing image shift. Control is managed directly from a Windows computer or EAGLE via a USB-C connection, or wirelessly from a smartphone or tablet using its built-in WiFi and the Virtual HandPad app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRobotic Micro-Focusing for Heavy Imaging Payloads\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for astrophotography, the ESATTO replaces stock focusers that often suffer from flexure and imprecision. Its special Crayford mechanism, supported by numerous internal ball bearings, ensures exceptionally smooth draw tube movement, allowing it to handle the weight of cooled cameras, filter wheels, and other accessories with a high payload capacity. This rigidity is critical for automated focusing routines, enabling software to achieve sharp, repeatable focus without mechanical slop or backlash.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Control via USB-C, WiFi, and ASCOM\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO eliminates the need for external motor controllers and cumbersome hand pads. For full-session remote control, connect it to any Windows computer or PrimaLuceLab EAGLE unit with the included USB-C cable to use the PLAY astrophotography software or the provided ASCOM driver. For visual use or quick adjustments at the telescope, the built-in WiFi allows you to connect wirelessly from any smartphone or tablet and use the Virtual HandPad app, giving you complete control without being tethered to a computer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLow-Profile Design with Seamless ARCO Rotator Connection\u003c\/h3\u003e\n\u003cp\u003eWith its compact, low-profile body, the ESATTO is an ideal upgrade for telescopes where backfocus is limited, such as Schmidt-Cassegrains and EdgeHD systems. This design minimizes the focuser's depth, leaving more room for your imaging train. The ESATTO also features a dedicated port for the ARCO robotic camera rotator, allowing the two devices to connect directly with a single cable for both power and data. This integration simplifies cable management and unifies control of both focusing and field rotation within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the PrimaLuceLab ESATTO 2\" focuser \"robotic\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"robotic\" designation means the \u003cstrong\u003emotor, controller, and all electronics are built directly into the focuser body\u003c\/strong\u003e. This all-in-one design eliminates the need for external control boxes or separate motors, simplifying your setup and cable management. You can control it remotely from a computer, smartphone, or tablet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ESATTO 2\" a good focuser for a Celestron EdgeHD 800 or SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. Its low-profile design is critical for SCT and EdgeHD telescopes that have limited backfocus. By using an external focuser like the ESATTO, you can achieve much finer focus adjustments and completely avoid the \"mirror flop\" or \"image shift\" common with the stock internal focusing mechanism.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect the ARCO rotator to the ESATTO 2\" microFocuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 2\" features a dedicated \u003cstrong\u003eARCO port\u003c\/strong\u003e specifically for this purpose. You connect the ARCO rotator directly to the ESATTO with a single, short cable. This one cable provides both power and data to the rotator, so you don't need to run additional power or USB cables from your main computer or power supply to the ARCO.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab ESATTO 2\" for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While designed for astrophotography, the ESATTO is also great for visual use. You can connect to its built-in WiFi network with your smartphone or tablet and use the \u003cstrong\u003eVirtual HandPad app\u003c\/strong\u003e. This lets you make fine focus adjustments electronically without touching the telescope, which is especially useful at high magnifications to prevent vibrations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 2\" works with PrimaLuceLab's own \u003cstrong\u003ePLAY software\u003c\/strong\u003e for an integrated experience. It also comes with an \u003cstrong\u003eASCOM driver\u003c\/strong\u003e, making it compatible with most third-party astrophotography software, such as N.I.N.A., Sequence Generator Pro (SGP), and others that support the ASCOM standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the ESATTO 2\" powered?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 2\" can be powered and controlled through its \u003cstrong\u003eUSB-C port\u003c\/strong\u003e when connected to a computer port capable of supplying sufficient current. For setups where the USB port power is insufficient, or for standalone WiFi operation, it can be powered via a standard 12V DC input (power adapter not included).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eid\u003c\/td\u003e\n\u003ctd\u003e#product-snippet-id\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967861027101,"sku":"PLL-PLLEST2","price":850.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/image__38479.1639679503.1280.1280.jpg?v=1684346153"},{"product_id":"primalucelab-esatto-3-robotic-microfocuser","title":"PrimaLuceLab ESATTO 3\" Robotic microFocuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e76.3mm Clear Aperture\u003c\/li\u003e\n\u003cli\u003e8 kg Payload Capacity\u003c\/li\u003e\n\u003cli\u003e25mm Draw Tube Travel\u003c\/li\u003e\n\u003cli\u003e0.04 Micron per Step Resolution\u003c\/li\u003e\n\u003cli\u003eASCOM, WiFi, and USB-C Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ESATTO 3\" Robotic microFocuser\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 3\" Robotic microFocuser combines a massive 76.3mm clear aperture with an 8 kg payload capacity, designed for large refractors and cassegrains with heavy imaging trains. Its 25mm of draw tube travel is controlled with a resolution of 0.04 microns per step, ensuring absolute precision for achieving critical focus. A low profile of just 58mm and a weight of 1345 grams keeps the entire assembly compact and manageable on your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCrayford Design: 8 kg Payload Capacity with Zero Flexure\u003c\/h3\u003e\n\u003cp\u003eEngineered for heavy instrumentation, the ESATTO 3\" utilizes a Crayford-style mechanism supported by 28 ball bearings. This design provides the rigidity needed to carry an 8 kg imaging train—including large format cameras, filter wheels, and off-axis guiders—without introducing sag or flexure. With a minimal thickness of only 58mm, it adds very little length to your optical path, preserving back focus for complex accessory configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRobotic Precision: 25mm of Travel at 0.04 Micron Resolution\u003c\/h3\u003e\n\u003cp\u003eThe core of the ESATTO 3\" is its high-resolution stepper motor, which moves the drawtube in increments as small as 0.04 microns. This level of precision is critical for automated focusing routines on fast optical systems, like Ritchey-Chrétiens or refractors with reducers, where the critical focus zone is exceptionally narrow. The 25mm of total travel gives you ample range to accommodate different cameras and accessories without needing to reconfigure your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAll-in-One Control: WiFi, USB-C, and ASCOM Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3\" eliminates the need for external motor controllers by integrating all electronics into its housing. You can connect and power it via a modern USB-C port from an EAGLE or any Windows computer, with a full ASCOM driver for compatibility with software like N.I.N.A. or SGP. For computer-free operation, built-in WiFi lets you control the focuser from a smartphone or tablet using the Virtual HandPad app, perfect for both visual observing and remote setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEcosystem Ready: ARCO Port and M81x1 Camera Connection\u003c\/h3\u003e\n\u003cp\u003eDesigned for seamless integration, the ESATTO 3\" features a dedicated ARCO port that provides both power and data to the optional ARCO robotic rotator. This single-cable connection dramatically simplifies wire management at the telescope. The drawtube terminates in a secure M81x1 male thread, allowing you to attach your camera via optional stop-ring adapters for a rigid, perfectly orthogonal connection that is superior to standard 2\" compression fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eESATTO 3\" vs. ESATTO 2\": The 76.3mm Aperture Advantage\u003c\/h3\u003e\n\u003cp\u003eThe primary distinction between the ESATTO 3\" and its 2\" sibling is the clear aperture. The 3\" model provides a 76.3mm light path, a significant increase over the 51mm aperture of the 2\" version. This makes the ESATTO 3\" essential for preventing vignetting when using large-format sensors (APS-C and full-frame) or when installing focal reducers and correctors inside the optical train. For large refractors, RCs, or Cassegrains, the 3\" aperture is required to fully illuminate the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the ESATTO 3\" over the 2\" model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the \u003cstrong\u003e76.3mm clear aperture\u003c\/strong\u003e, compared to 51mm on the 2\" model. This is critical for illuminating large camera sensors and avoiding vignetting with focal reducers on telescopes like large Ritchey-Chrétiens or apochromatic refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the ESATTO 3\" focuser without a computer at the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The ESATTO 3\" has built-in WiFi, allowing you to connect directly from a smartphone or tablet using the \u003cstrong\u003eVirtual HandPad app\u003c\/strong\u003e for precise remote focusing. This is ideal for visual use or for making adjustments without a dedicated PC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ESATTO 3\" connect to my camera to prevent flexure?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt uses a secure \u003cstrong\u003eM81x1 male thread\u003c\/strong\u003e on the drawtube. Optional adapters with stop rings are available to create a rigid, threaded connection to your specific camera, eliminating the sag and tilt common with standard 2\" compression-ring visual backs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the ARCO port on the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ARCO port provides both \u003cstrong\u003epower and data\u003c\/strong\u003e to the optional ARCO robotic rotator through a single, short cable. This means you only need one power\/data line running to the focuser, which then powers the rotator, greatly simplifying cable management at the back of your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 12\" f\/8 Ritchey-Chrétien with a full-frame camera and filter wheel. Is the ESATTO 3\" strong enough?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eAbsolutely.\u003c\/strong\u003e The ESATTO 3\" is designed for this exact scenario. Its \u003cstrong\u003e8 kg payload capacity\u003c\/strong\u003e and 28-bearing Crayford design can handle heavy imaging trains without flexure, and the \u003cstrong\u003e76.3mm aperture\u003c\/strong\u003e ensures your full-frame sensor is fully illuminated without vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ESATTO 3\" work with my existing ASCOM-compatible software like N.I.N.A. or SGP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The ESATTO 3\" includes a dedicated ASCOM driver, allowing it to be controlled directly from any standard astrophotography software that supports the ASCOM platform. It will integrate seamlessly into your existing automated imaging workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eRobotic Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e76.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Travel\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution per Step\u003c\/td\u003e\n\u003ctd\u003e0.04 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Thickness\u003c\/td\u003e\n\u003ctd\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearings\u003c\/td\u003e\n\u003ctd\u003e28 ball bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1345 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eM81x1 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePC Connection\u003c\/td\u003e\n\u003ctd\u003eUSB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless Connection\u003c\/td\u003e\n\u003ctd\u003eWiFi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port\u003c\/td\u003e\n\u003ctd\u003eARCO Port for Robotic Rotator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Control\u003c\/td\u003e\n\u003ctd\u003ePLAY, ASCOM Driver, Virtual HandPad App\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eESATTO 3\" Robotic microFocuser\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUSB-C to USB-A Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967861092637,"sku":"PLL-PLLEST3","price":1190.7,"currency_code":"CAD","in_stock":true}]},{"product_id":"primalucelab-esatto-4-robotic-microfocuser","title":"PrimaLuceLab ESATTO 4\" Robotic microFocuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e102.2mm clear aperture\u003c\/li\u003e\n\u003cli\u003e10 kg payload capacity\u003c\/li\u003e\n\u003cli\u003e35mm of draw tube travel\u003c\/li\u003e\n\u003cli\u003e0.04 micron resolution per step\u003c\/li\u003e\n\u003cli\u003eUSB-C, WiFi, and ARCO port connectivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003ePrimaLuceLab ESATTO 4\" Robotic microFocuser\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab ESATTO 4\" Robotic microFocuser is engineered for observatory-class instruments, offering a massive 102.2mm clear aperture and a 10 kg payload capacity to support the heaviest imaging trains. It provides 35mm of precise draw tube travel, achieving an exceptional resolution of 0.04 microns per step for critical focusing. The focuser's low-profile design is only 65mm thick and connects via a modern USB-C port for computer control or built-in WiFi for its mobile Virtual HandPad.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e102.2mm Aperture and 10 kg Payload for Large Astrographs\u003c\/h3\u003e\n      \u003cp\u003eDesigned to serve large professional telescopes, the ESATTO 4\" eliminates vignetting on astrographs with wide, corrected image circles. Its 102.2mm free aperture ensures the entire light cone reaches your full-frame or larger sensor. A robust payload capacity of 10 kg supports heavy imaging setups, including large format cameras, filter wheels, and off-axis guiders, without flexure.\u003c\/p\u003e\n      \u003cp\u003eThis rigidity is achieved through a sophisticated design incorporating 40 bearings, which guarantees smooth, precise movement even when the telescope is aimed near the zenith. Despite its strength, the focuser maintains a slim 65mm profile, minimizing the impact on your telescope's back focus requirements.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e0.04 Micron Resolution with USB-C and WiFi Control\u003c\/h3\u003e\n      \u003cp\u003eThe ESATTO 4\" achieves its 0.04-micron resolution through advanced motor control, allowing you to hit the critical focus zone with absolute precision on even the fastest optical systems. You can connect and control the focuser via the reliable, reversible USB-C port from any Windows computer or a PrimaLuceLab EAGLE controller, using the provided ASCOM driver or PLAY astrophotography software.\u003c\/p\u003e\n      \u003cp\u003eFor operation without a computer, the ESATTO 4\" features built-in WiFi. This allows you to connect directly from any smartphone, tablet, or computer to use the Virtual HandPad app, giving you complete control for visual observation or at-the-telescope adjustments.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eARCO Integration: 1 Port for Power and Data\u003c\/h3\u003e\n      \u003cp\u003eThe ESATTO 4\" includes a dedicated ARCO port, streamlining its integration with the PrimaLuceLab ARCO robotic rotator. This port provides both power and data to the rotator through a single cable, eliminating the cable management challenges of separate USB and 12V power lines.\u003c\/p\u003e\n      \u003cp\u003eWhen paired, ESATTO and ARCO create a fully robotic focusing and framing system. From your control computer, you can precisely adjust focus and rotate your camera to perfectly frame deep-sky objects. For observers with alt-azimuth mounts, ARCO also functions as a field de-rotator, enabling long-exposure astrophotography without an equatorial wedge.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Custom Solution for the Takahashi FSQ-106\u003c\/h3\u003e\n      \u003cp\u003eThe ESATTO 4\" is the ideal focusing solution for the Takahashi FSQ-106 astrograph, whose large internal corrector demands a focuser with a correspondingly large aperture. PrimaLuceLab has designed optional adapters that allow the ESATTO 4\" to replace the stock focuser seamlessly.\u003c\/p\u003e\n      \u003cp\u003eThis adapter kit ensures the ESATTO 4\" combination has the same optical thickness as the original focuser. It also converts the drawtube's M110x1 thread to the M92x1 female thread found on the original, allowing you to reuse your existing camera adapters and spacers to reach focus without recalculating your imaging train.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eESATTO 4\" vs. ESATTO 3\" and 2\": Matching the Focuser to Your Telescope\u003c\/h3\u003e\n      \u003cp\u003eAs the largest model in the ESATTO family, the 4\" version is specifically for large instruments where aperture is paramount. The primary differences lie in physical capacity and intended application.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eESATTO 4\":\u003c\/strong\u003e With its 102.2mm aperture and 10 kg payload, this is the choice for observatory telescopes and large-format astrographs like the FSQ-106, where preventing vignetting is the top priority.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eESATTO 3\" and 2\":\u003c\/strong\u003e These smaller models offer the same core robotic technology but in a more compact and lighter package suitable for smaller refractors, Newtonians, and SCTs. They are the better choice when the massive aperture of the 4\" model is not required, as their lower weight (the 4\" weighs 2050 g) makes balancing the telescope easier.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the ESATTO 4\" necessary for a telescope like the Takahashi FSQ-106?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Takahashi FSQ-106 astrograph uses a large internal corrector lens that produces a very wide, flat, and well-illuminated image circle. The \u003cstrong\u003eESATTO 4\"'s large 102.2mm clear aperture\u003c\/strong\u003e is required to pass this entire light cone without vignetting, ensuring the field is evenly illuminated right to the corners of a large sensor.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the ESATTO 4\" focuser without a computer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The ESATTO 4\" has \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e, allowing you to connect to it directly from any smartphone, tablet, or computer. Using the free Virtual HandPad application, you can control all focusing functions wirelessly, which is ideal for visual observing or making quick adjustments at the telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the ARCO port on the ESATTO 4\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe dedicated ARCO port allows you to connect a PrimaLuceLab ARCO robotic rotator directly to the focuser with a single, short interconnect cable. This one cable provides both \u003cstrong\u003epower and data control\u003c\/strong\u003e to the rotator, completely eliminating the need for separate USB and 12V power cables running to your camera assembly, which greatly simplifies cable management.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the focusing resolution of the ESATTO 4\" and why is it important?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe ESATTO 4\" has a positioning resolution of \u003cstrong\u003e0.04 microns per step\u003c\/strong\u003e. This extremely fine level of control is critical for astrophotography with fast, high-resolution optical systems where the critical focus zone (CFZ) is exceptionally narrow. This precision ensures you can achieve the sharpest possible focus that your optics and seeing conditions will allow.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIf I install the ESATTO 4\" on my FSQ-106, will I need all new camera adapters?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNot necessarily. PrimaLuceLab offers an optional adapter kit specifically for the Takahashi FSQ-106. This kit is designed to make the ESATTO 4\" maintain the \u003cstrong\u003esame optical thickness\u003c\/strong\u003e as the original focuser and provides the same \u003cstrong\u003eM92x1 thread\u003c\/strong\u003e. This clever design allows you to reuse your existing camera adapters and spacers, ensuring you can reach focus correctly.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the maximum payload of the ESATTO 4\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe ESATTO 4\" can handle a total imaging payload of up to \u003cstrong\u003e10 kg (22 lbs)\u003c\/strong\u003e. This substantial capacity is designed for heavy, professional-level imaging trains that may include a large format cooled camera, a heavy 7-position filter wheel, an off-axis guider, and other accessories without introducing flexure or slippage.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eESATTO 4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRobotic Microfocuser\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e102.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDraw Tube Travel\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e10 kg (22 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eResolution per Step\u003c\/td\u003e\n\u003ctd\u003e0.04 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e65 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2050 g (4.5 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePC Connection\u003c\/td\u003e\n\u003ctd\u003eUSB-C Port\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWireless Connection\u003c\/td\u003e\n\u003ctd\u003eWiFi with Virtual HandPad\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRotator Port\u003c\/td\u003e\n\u003ctd\u003eDedicated ARCO Port\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSoftware Support\u003c\/td\u003e\n\u003ctd\u003eASCOM Driver, PLAY Software\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eESATTO 4\" Robotic microFocuser\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eUSB-C Cable\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967861879069,"sku":"PLL-PLLEST4","price":1757.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-ESATTO-4-robotic-microfocuser__18256.1617396014.1280.1280.jpg?v=1684346164"},{"product_id":"optec-tcf-leo-low-profile-focuser","title":"Optec TCF-Leo Low Profile Focuser","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003eOptec engineers have developed a low profile, yet extremely robust 3-inch focuser for telescope installations where back-focus is at a premium.  With the width of a typical 1-1\/4\" eyepiece, the TCF-Leo provides a unique focusing solution for the \u003c\/span\u003e\u003ca href=\"https:\/\/www.celestron.com\/products\/edgehd-11-optical-tube-assembly\" target=\"_blank\" rel=\"noreferrer noopener\"\u003eCelestron EdgeHD\u003c\/a\u003e\u003cspan\u003e and other telescopes with limited flange-to-focus distances.  The proven \u003c\/span\u003e\u003ca href=\"https:\/\/optecinc.us\/products\/19690\"\u003eFocusLynx\u003c\/a\u003e\u003cspan\u003e control system operates the TCF-Leo and can be extended to provide control for a second focuser and supports the optional \u003ca href=\"https:\/\/optecinc.us\/collections\/focuslynx-accessories\" target=\"_blank\" rel=\"noopener\"\u003e802.11 WiFi and Hand Control accessories\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eThe unique shape of the TCF-Leo is designed to fit neatly between the lock and focus knobs of the Celestron EdgeHD C-11 telescope OTA.  With a center-to-edge distance of about 2.2-inches (55mm), the TCF-Leo works exceptionally well with \u003ca href=\"https:\/\/www.innovationsforesight.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"\u003eInnovation Foresight\u003c\/a\u003e's On-Axis Guider, providing clearance for large cameras and filter wheels above either of the flat edges of the TCF-Leo.  Additionally, the \u003cstrong\u003eTCF-Leo'\u003c\/strong\u003es 3600 receiver fits directly on to the large 3-inch port of the \u003ca href=\"https:\/\/optecinc.us\/products\/19605\" target=\"_blank\" rel=\"noopener\"\u003ePerseus Instrument Selector\u003c\/a\u003e for ultra-fine focus of a large format camera. \u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eThe TCF-Leo supports several draw tube options including the \u003ca href=\"https:\/\/optecinc.us\/collections\/optec-3000\"\u003eOptec 3000\u003c\/a\u003e dovetail, a DSI 3.5\" receiver, and a 3-inch split clamp for Wynne Correctors. You can select the option that works best for your system.\u003c\/span\u003e\u003c\/p\u003e\u003ch5\u003eTCF-Leo Specifications\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eOverall Thickness:    1.25\" (31.8mm) to 1.6\" (40.6mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Travel:    0.35\" (8.9mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Midpoint:    1.425\" (36.2mm)\u003c\/li\u003e\n\u003cli\u003eTotal Step Travel:    112,000 steps\u003c\/li\u003e\n\u003cli\u003eStep Resolution:    0.08 microns\u003c\/li\u003e\n\u003cli\u003eWeight:    1lb. 14 oz. (0.85 kg)\u003c\/li\u003e\n\u003cli\u003ePayload Capacity:    20-lbs. (9 kg)\u003c\/li\u003e\n\u003cli\u003eTelescope-side Mount:    \u003ca title=\"Optec 3600\" href=\"https:\/\/optecinc.us\/collections\/optec-3600\" target=\"_blank\" rel=\"noopener\"\u003eOPTEC-3600\u003c\/a\u003e dovetail\u003c\/li\u003e\n\u003cli\u003eControl System:    FocusLynx Controller (included if option selected)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eCamera-Side Mount (based on selected option):\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca title=\"Optec 3000\" href=\"https:\/\/optecinc.us\/collections\/optec-3000\" target=\"_blank\" rel=\"noopener\"\u003eOPTEC-3000\u003c\/a\u003e 3-inch drawtube (Default)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"Optec 3000\" href=\"https:\/\/optecinc.us\/collections\/optec-3000\" target=\"_blank\" rel=\"noopener\"\u003eOPTEC-3000\u003c\/a\u003e 3-inch drawtube (Extended Height)\u003c\/li\u003e\n\u003cli\u003eDSI 3.5\" receiver\u003c\/li\u003e\n\u003cli\u003e3-inch split clamp for Wynne Correctors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eFocusLynx Controller \u003cspan class=\"text-left\"\u003eSpecifications\u003c\/span\u003e\n\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eStepper Motor Control:    bipolar and unipolar stepper motors,\u003c\/li\u003e\n\u003cli\u003ePC Connectivity:    USB\/Serial, Ethernet, or optional 802.11 WiFi,\u003c\/li\u003e\n\u003cli\u003eHand Control:    Optional 2-button with Digital Read-Out,\u003c\/li\u003e\n\u003cli\u003eWiFi Connection:    Optional 802.11b\/g compatible,\u003c\/li\u003e\n\u003cli\u003eSecond Stepper:    Optional plug-in daughter board,\u003c\/li\u003e\n\u003cli\u003eInput Power:    12VDC univeral power supply (110 to 230VAC input),\u003c\/li\u003e\n\u003cli\u003eAlternative Power:    Field battery voltage (13.8VDC) with optional automotive cigarette lighter plug,\u003c\/li\u003e\n\u003cli\u003eSoftware Drivers:    ASCOM local server, X2 native drivers for TheSky X\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eFocusLynx Port Connections:\u003c\/h5\u003e\u003cul\u003e\n\u003cli\u003eFocuser 1:    RJ45 socket for standard Cat-5e\/Cat-6 to focuser,\u003c\/li\u003e\n\u003cli\u003eFocuser 2:    Optional second stepper board for RJ45 socket,\u003c\/li\u003e\n\u003cli\u003ePower:    12VDC input, 2.5 x 5.5mm plug, center pin positive,\u003c\/li\u003e\n\u003cli\u003eNetwork:    Standard RJ45 Ethernet socket,\u003c\/li\u003e\n\u003cli\u003eHand Controller:    RJ22 socket for standard telephone handset cord,\u003c\/li\u003e\n\u003cli\u003eSerial:    RJ12 socket for Optec USB\/Serial cable.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optec","offers":[{"title":"With FocusLynx Hub","offer_id":44967945437469,"sku":"OPC-19740","price":2093.0,"currency_code":"CAD","in_stock":true},{"title":"Without FocusLynx Hub","offer_id":44967945470237,"sku":"OPC-19740-NC","price":1813.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Optec-TCF-LEO-2__39067.1638904157.1280.1280.jpg?v=1684347206"},{"product_id":"primalucelab-esatto-4-focuser-with-arco-3-rotator","title":"PrimaLuceLab ESATTO 4\" Focuser with ARCO 3\" rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eRobotic focuser and high-resolution rotator bundle\u003c\/li\u003e\n\u003cli\u003eEngineered for large, observatory-class telescopes and astrographs\u003c\/li\u003e\n\u003cli\u003eHigh payload capacity to support heavy imaging trains\u003c\/li\u003e\n\u003cli\u003eIntegrated single-cable power and data connectivity\u003c\/li\u003e\n\u003cli\u003eASCOM and native PLAY software compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ESATTO 4\" Focuser with ARCO 3\" Rotator\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 4\" Focuser with ARCO 3\" rotator bundle combines a large-aperture robotic focuser with a high-resolution rotator in a single, integrated package. This system is engineered for observatory-class telescopes and heavy imaging trains, enabling precise, remote control over both critical focus and image framing. The entire bundle connects to your control computer with a single USB cable, dramatically simplifying cable management for complex rigs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eESATTO 4\" Focuser: Robotic Precision for Large Astrographs\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for large instruments like the Takahashi FSQ-106 and custom observatory astrographs, the ESATTO 4\" provides the aperture and strength necessary for serious imaging. Its large free aperture minimizes vignetting with full-frame and larger sensors, while the high payload capacity ensures zero flexure, even with heavy filter wheels, off-axis guiders, and large format cameras. The zero-shift mechanism maintains perfect optical alignment through the entire range of travel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eARCO 3\" Rotator: High-Resolution Framing and Field De-rotation\u003c\/h3\u003e\n\u003cp\u003eThe ARCO 3\" rotator offers exceptionally fine, repeatable control over your camera's orientation. For imagers with equatorial mounts, this allows you to precisely frame faint nebulae or galaxy groups without ever touching the telescope. When used with an alt-azimuth mount, the ARCO functions as a field de-rotator, actively counteracting field rotation to enable long, unguided exposures with round stars to the edge of the frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Control: Single-Cable Connectivity with ASCOM and PLAY\u003c\/h3\u003e\n\u003cp\u003eThis bundle is designed as a single electromechanical system. A single USB cable to the ESATTO focuser provides both data and power; the focuser then powers and controls the ARCO rotator via a short linking cable. This elegant solution eliminates the cable drag and extra power supplies typically required for two separate devices.\u003c\/p\u003e\n\u003cp\u003eFor software control, the system includes ASCOM drivers for full compatibility with popular third-party astrophotography software on Windows. You can also use PrimaLuceLab's own PLAY software, an integrated platform for controlling your entire imaging setup, from target selection on the planetarium to final image capture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the PrimaLuceLab ESATTO 4\" and ARCO 3\" bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is seamless integration. The focuser and rotator are designed to work together, sharing power and data through a single USB connection to your computer. This simplifies cable management, reduces potential snag points, and provides unified control through ASCOM or PrimaLuceLab's PLAY software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of telescopes is the ESATTO 4\" focuser designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 4\" is built for large, heavy optical systems. It is an ideal match for observatory-class refractors, large astrographs like the Takahashi FSQ-106, and custom Ritchey-Chrétien telescopes that use large format sensors and heavy imaging trains. Its high payload capacity makes it unsuitable for smaller, portable setups where weight is a primary concern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ARCO 3\" rotator work as a field de-rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen used with a telescope on an \u003cstrong\u003ealt-azimuth mount\u003c\/strong\u003e, the sky appears to rotate around the center of the field of view. The ARCO 3\", controlled by appropriate software, precisely counter-rotates your camera at the sidereal rate to cancel this effect. This allows you to take long exposures without the star trails that would otherwise occur.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to control the PrimaLuceLab ESATTO 4\" and ARCO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou have two main options. You can use any ASCOM-compliant software on Windows, such as Sequence Generator Pro (SGP), N.I.N.A., or Maxim DL. Alternatively, you can use PrimaLuceLab's proprietary \u003cstrong\u003ePLAY software\u003c\/strong\u003e, which is designed to integrate control of all their devices into a single application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this bundle simplify my imaging setup's cable management?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstead of running separate USB and 12V power cables for both a focuser and a rotator, this bundle requires only one. A single USB cable runs from your computer or hub to the ESATTO 4\" focuser. A short, included cable then connects the ESATTO to the ARCO 3\" rotator, delivering both power and commands and eliminating two long cable runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ARCO 3\" rotator to perfectly frame targets like the Horsehead Nebula (B33)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is a primary function of the ARCO 3\" on an equatorial mount. After your mount slews to the target, you can use the rotator's high-resolution control to make fine rotational adjustments to your camera. This ensures you can achieve the exact composition you want for targets with specific orientations, like the Horsehead and Flame Nebula region, without having to physically rotate the entire imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967966867741,"sku":"PLL-PLLEST4ARCO3","price":4109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/esatto-4-focuser-with-arco-3-rotator__54024.1641495402.1280.1280.jpg?v=1684347354"},{"product_id":"optec-gemini-focusing-rotator","title":"Optec Gemini Focusing Rotator","description":"\u003c!-- more --\u003e\u003cp\u003eOptec engineers have developed a completely new concept for combining telescope focus and camera rotation functions into a single robust, yet compact package. Rather than simply adding a rotator onto the end of a focuser drawtube, \u003cstrong\u003eGemini\u003c\/strong\u003e was designed from inception with a rotating drawtube providing superior strength and rigidity for heavy camera payloads. Featuring four lead-screws and four linear bearings, \u003cstrong\u003eGemini\u003c\/strong\u003e can easily handle 10-kg. (22-lbs.) payload packages without flexure. Full 360-degree rotation is a built-in function of the \u003cstrong\u003eGemini\u003c\/strong\u003e with a full 1\/2\" of linear travel. At the center of travel, \u003cstrong\u003eGemini\u003c\/strong\u003e measures a mere 2.45\" in thickness.\u003c\/p\u003e\u003cp\u003eLike all Optec focuser products, Gemini includes a remote temperature probe for automatic temperature compensation.  Simply attach the temperature probe anywhere in the linear response zone of your OTA (usually the tube or truss assembly) and Gemini will automatically keep the camera package in sharp focus. The \u003cstrong\u003eGemini Commander \u003c\/strong\u003esoftware provides a convenient wizard to help determine your telescope's TC or temperature coefficient.\u003c\/p\u003e\u003cp\u003eTo maintain a flat, rigid base for heavy camera packages, Gemini's shell consists of two parallel plates machined from MIC-6 tool plate providing flatness within 0.001\" (25 microns).  Seven precise stand-off spacers maintain the 2.2\" separation of these plates.  The rotating drawtube is moved linearly with 1\/2\" of total travel using a premium timing belt driven by a high torque stepper motor.  The entire package is accented with a beautiful carbon fiber wrap.  Dual RJ45 connectors provide connection to the Gemini Control hub.  The independent rotating drawtube is supported by a custom X-cage bearing system supported by large, 6mm chrome ball bearings. \u003c\/p\u003e\u003ch3\u003eSpecifications for Gemini and Controller:\u003c\/h3\u003e\u003ch5\u003eFocusing Rotator Physical Specifications:\u003c\/h5\u003e\u003cul class=\"text-left\"\u003e\n\u003cli\u003eClear Aperture: 3.75\" (95mm)\u003c\/li\u003e\n\u003cli\u003eBack-Focus Usage: 2.2\" to 2.7\" (55.9 to 68.6mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Travel: 0.5\" (12.7mm)\u003c\/li\u003e\n\u003cli\u003eFocuser Resolution: 0.11 microns per step\u003c\/li\u003e\n\u003cli\u003eRotator Resolution: 600 steps per degree\u003c\/li\u003e\n\u003cli\u003eMinimum Overall Thickness: 2.2\" (55.9mm) [Full IN position]\u003c\/li\u003e\n\u003cli\u003eDimensions: 9.4\" x 7.4\" (239mm x 187mm)\u003c\/li\u003e\n\u003cli\u003eWeight: 6 lb. 6 oz. (2.9 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGemini Controller Hub Specifications:\u003c\/h3\u003e\u003ch5\u003eController Hub Specifications:\u003c\/h5\u003e\u003cul class=\"text-left\"\u003e\n\u003cli\u003eLength: 5.1\" (130mm)\u003c\/li\u003e\n\u003cli\u003eWidth: 3.2\" (81mm)\u003c\/li\u003e\n\u003cli\u003eHeight: 1.0\" (27mm)\u003c\/li\u003e\n\u003cli\u003eWeight: 10 oz. (285 g)\u003c\/li\u003e\n\u003cli\u003eMounting Holes: Four 4-40 x 1\/8\" depth (reverse side)\u003c\/li\u003e\n\u003cli\u003eCase Material: 6061 aluminum, anodized black.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch5\u003eGemini Hub Port Connections:\u003c\/h5\u003e\u003cul class=\"text-left\"\u003e\n\u003cli\u003eFocuser: RJ45 socket for standard Cat-5e\/Cat-6 cable to Focuser port\u003c\/li\u003e\n\u003cli\u003eRotator: RJ45 socket for standard Cat-5e\/Cat-6 cable to Rotator port\u003c\/li\u003e\n\u003cli\u003ePower: 12VDC input, 2.5 x 5.5mm plug, center pin positive\u003c\/li\u003e\n\u003cli\u003eNetwork: Standard RJ45 Ethernet socket\u003c\/li\u003e\n\u003cli\u003eHand Controller: RJ22 socket for standard telephone handset cord\u003c\/li\u003e\n\u003cli\u003eSerial: RJ12 socket for Optec USB\/Serial cable\u003c\/li\u003e\n\u003cli\u003eWireless: 802.11 WiFi option\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optec","offers":[{"title":"Default Title","offer_id":44967967031581,"sku":"OPC-19750","price":5033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Optec-Gemini-19750__85396.1641929967.1280.1280.jpg?v=1684347356"},{"product_id":"primalucelab-esatto-2-lp-low-profile-robotic-focuser","title":"PrimaLuceLab ESATTO 2\" LP low profile robotic focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eUltra-low 32mm profile designed for low-backfocus telescopes\u003c\/li\u003e\n\u003cli\u003e10mm of precise focuser travel\u003c\/li\u003e\n\u003cli\u003e5 kg (11 lbs) payload capacity for heavy imaging trains\u003c\/li\u003e\n\u003cli\u003e0.03 micron per step resolution for critical focusing\u003c\/li\u003e\n\u003cli\u003e50.9mm clear aperture minimizes vignetting\u003c\/li\u003e\n\u003cli\u003eIntegrated WiFi, USB-C, and dedicated ARCO rotator port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ESATTO 2\" LP Low Profile Robotic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 2\" LP delivers robotic focusing to telescopes with minimal backfocus, engineered into a body just 32mm thick. It provides 10mm of precise travel with a remarkable resolution of 0.03 microns per step, easily supporting a full 5 kg imaging payload through its 50.9mm clear aperture. Designed specifically for instruments like the Celestron EdgeHD 8\", the ESATTO 2\" LP integrates WiFi, a modern USB-C port, and a dedicated ARCO rotator port, creating a complete remote focusing solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 32mm Profile: Solving Backfocus on Celestron EdgeHD 8\"\u003c\/h3\u003e\n\u003cp\u003eTelescopes like the Celestron EdgeHD 8\", especially when used with a focal reducer, present a significant challenge for adding a motorized focuser due to their limited backfocus. The ESATTO 2\" LP is designed to solve this problem with its exceptionally thin 32mm body. This compact form factor allows it to be installed without interfering with the telescope's primary mirror lock knobs or manual focuser, preserving critical space in the optical train for cameras, filter wheels, and off-axis guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5 kg Payload Capacity with 0.03 Micron Step Resolution\u003c\/h3\u003e\n\u003cp\u003eDespite its lightweight 730 gr chassis, the ESATTO 2\" LP handles imaging trains up to 5 kg (11 lbs) without flexure or slippage. This robust capacity ensures you can securely attach large sensor cameras, filter wheels, and other accessories. The focuser's precision is equally impressive, offering a repeatable step size of just 0.03 microns, which allows autofocusing software to achieve a level of sharpness that is impossible to attain by hand, especially on high-resolution planetary and deep-sky targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTotal Control: USB-C, WiFi, and PLAY Astrophotography Software\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 2\" LP provides multiple methods for remote operation. A reliable, high-speed USB-C port connects the focuser to an EAGLE control unit or any Windows computer for control via the included ASCOM driver or PLAY astrophotography software. For wireless control, built-in WiFi lets you command the focuser from a smartphone or tablet using the ESATTO Virtual HandPad app, perfect for making fine adjustments at the eyepiece during visual observation or initial setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eARCO-Ready: Native Integration for a 54.2mm Rotating Focuser\u003c\/h3\u003e\n\u003cp\u003eA dedicated ARCO port is built into the focuser body, allowing for the direct connection of the PrimaLuceLab ARCO robotic rotator. This unique port provides both power and data to the rotator, eliminating the need for extra cables that can snag in the dark. When the ESATTO 2\" LP is combined with the ARCO 2\" rotator, you get a fully remote-controlled rotating focuser system with a combined thickness of just 54.2mm, maintaining a compact profile while adding precise framing and field de-rotation capabilities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ESATTO 2\" LP solve backfocus issues on a Celestron EdgeHD 8\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron EdgeHD 8\", especially with its 0.7x reducer, has only 105mm of backfocus. The \u003cstrong\u003eESATTO 2\" LP's ultra-thin 32mm body\u003c\/strong\u003e consumes minimal space in the optical train, leaving enough room for your camera and other accessories. Its physical design also avoids collision with the telescope's mirror lock and manual focus knobs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the ESATTO 2\" LP handle a heavy imaging train with a large camera and filter wheel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The focuser is rated for a \u003cstrong\u003epayload capacity of 5 kg (11 lbs)\u003c\/strong\u003e. This is more than sufficient to support a typical deep-sky imaging setup, including a cooled astronomy camera, a multi-position filter wheel, and an off-axis guider, without introducing flexure or focus shift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to control the ESATTO 2\" LP from my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the ESATTO 2\" LP from any Windows computer using the included \u003cstrong\u003eASCOM driver\u003c\/strong\u003e, which makes it compatible with most third-party astrophotography software. Alternatively, you can use PrimaLuceLab's own \u003cstrong\u003ePLAY software\u003c\/strong\u003e, which provides an integrated control environment for ESATTO focusers and ARCO rotators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I control the ESATTO 2\" LP wirelessly for visual use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 2\" LP has \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e. You can connect to its network with any smartphone or tablet and use the free \u003cstrong\u003eESATTO Virtual HandPad app\u003c\/strong\u003e to control focusing wirelessly. This is ideal for making fine adjustments at the eyepiece without touching the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the ARCO port on the ESATTO 2\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dedicated ARCO port allows you to connect a PrimaLuceLab ARCO rotator directly to the focuser. This single connection provides both \u003cstrong\u003epower and data\u003c\/strong\u003e to the rotator, eliminating the need for a separate 12V power cable and USB cable. This simplifies cable management and reduces the risk of snags during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 10mm travel of the ESATTO 2\" LP enough for focusing with different filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for its intended use. The \u003cstrong\u003e10mm travel\u003c\/strong\u003e is designed for fine-tuning focus, not for large coarse adjustments. After achieving a rough focus with your telescope's manual focuser, the 10mm range is more than enough to compensate for the small focus shifts caused by changing filters (parfocal adjustments) or temperature changes during the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eRobotic Crayford Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e50.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e5 kg (11 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Resolution\u003c\/td\u003e\n\u003ctd\u003e0.03 microns per step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e730 g (1.6 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eUSB-C, WiFi, ARCO Port, Temperature Probe Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eM60x1 female thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eM56x1 female thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Control\u003c\/td\u003e\n\u003ctd\u003eASCOM driver, PLAY software, Virtual HandPad App\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eAdapter from M60 to T2 with stop ring, Adapter from M60 to M48 with stop ring, Adapter from M60 to M54 with stop ring, 2\" visual back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eESATTO 2\" LP Robotic Focuser\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUSB-C Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":45019668349213,"sku":"PLLEST2LP-B","price":1225.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ESATTO-2-LP-low-profile-robotic-focuser-banner-ENa.jpg?v=1685031292"},{"product_id":"qhy-q-focuser-high-precision-version","title":"QHY Q-Focuser - High Precision Version","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHigh-precision electronic focuser for automated imaging\u003c\/li\u003e\n\u003cli\u003eCompact and elegant body design\u003c\/li\u003e\n\u003cli\u003eModern USB 2.0 Type-C data connection\u003c\/li\u003e\n\u003cli\u003eFlexible 5V or 12V power input\u003c\/li\u003e\n\u003cli\u003eSupports external temperature sensor for focus compensation\u003c\/li\u003e\n\u003cli\u003eASCOM and Linux compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eQHY Q-Focuser - High Precision Version\u003c\/h2\u003e\n\u003cp\u003eThe QHY Q-Focuser - High Precision Version achieves automated, repeatable focus control for astrophotography, connecting to your PC or controller via a modern USB 2.0 Type-C interface. It accommodates nearly any power setup with support for both 5V and 12V inputs, ensuring compatibility with both USB-powered field rigs and permanent 12V observatory systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCompact Design for High-Precision Automated Focusing\u003c\/h3\u003e\n\u003cp\u003eThe Q-Focuser is engineered for the modern, compact imaging rig. Its exceptionally small form factor and curved, elegant body design minimize weight and clearance issues on complex optical trains. This focuser provides the precise, repeatable micromovements necessary to achieve and maintain critical focus through temperature changes and filter swaps, eliminating a major source of frustration in astrophotography.\u003c\/p\u003e\n\u003cp\u003eIntegrated control through Windows (ASCOM) and Linux platforms allows the Q-Focuser to be managed by popular automation software. You can build accurate V-curves and run autofocus routines automatically, ensuring your stars remain perfectly sharp throughout the entire imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eModern I\/O: USB 2.0 Type-C Port and 5V\/12V Power\u003c\/h3\u003e\n\u003cp\u003eQHY designed the Q-Focuser with robust, modern connections. The USB 2.0 Type-C port offers a more reliable and secure physical connection than older USB types and is non-directional, making it easier to plug in correctly in the dark. This single cable handles all data communication with your control computer.\u003c\/p\u003e\n\u003cp\u003ePower flexibility is a key feature, with support for both 5V and 12V inputs. You can power the device directly from a USB port for a simple, low-cable setup, or use a standard 12V DC source from an observatory-grade power distribution unit. The Q-Focuser also supports an external temperature sensor, enabling your software to automatically compensate for thermal focus shift as ambient temperature drops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eQHY Q-Focuser vs. ZWO EAF: A Comparison\u003c\/h3\u003e\n\u003cp\u003eThe QHY Q-Focuser enters a market with the popular ZWO EAF as a primary competitor. The choice between them depends on your priorities for connectivity and existing hardware.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitor's Advantage (ZWO EAF):\u003c\/strong\u003e The ZWO EAF is the industry standard and typically includes a versatile mounting bracket and several flexible couplers, making it adaptable to a wide range of focusers out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ-Focuser Advantage (Connectivity):\u003c\/strong\u003e The Q-Focuser uses a modern USB-C port, which is physically more robust than the EAF's USB-B. It also offers dual 5V\/12V power options, whereas the standard EAF is limited to 5V USB power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade-Off (Accessories):\u003c\/strong\u003e The primary trade-off is that the Q-Focuser is sold as the focuser body only. You must source the correct mounting bracket, coupler, and cables for your specific telescope focuser separately, which requires careful measurement and planning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the QHY Q-Focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe QHY Q-Focuser offers two power options. You can power it with \u003cstrong\u003e5V\u003c\/strong\u003e via its USB-C port for simple, portable setups, or use a separate \u003cstrong\u003e12V\u003c\/strong\u003e DC power source, common in permanent or semi-permanent observatory setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the QHY Q-Focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Q-Focuser is compatible with any software that supports the \u003cstrong\u003eASCOM\u003c\/strong\u003e standard on Windows. This includes popular astrophotography suites like N.I.N.A., Sequence Generator Pro (SGP), and Maxim DL. It is also supported on \u003cstrong\u003eLinux\u003c\/strong\u003e-based platforms like Astroberry or Stellarmate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the QHY Q-Focuser support temperature compensation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The QHY Q-Focuser has a port that \u003cstrong\u003esupports an external temperature sensor\u003c\/strong\u003e (sold separately). When connected, your automation software can use this data to automatically adjust focus as the ambient temperature changes, preventing focus drift during long imaging sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the QHY Q-Focuser over the ZWO EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantages of the QHY Q-Focuser are its modern connections. It features a more robust \u003cstrong\u003eUSB-C port\u003c\/strong\u003e compared to the ZWO EAF's USB-B, and its \u003cstrong\u003edual 5V\/12V power\u003c\/strong\u003e capability offers greater flexibility than the EAF's 5V-only design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the QHY Q-Focuser work with my remote observatory running on Linux?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The QHY Q-Focuser has official support for \u003cstrong\u003eLinux\u003c\/strong\u003e, making it fully compatible with INDI-based systems commonly used in remote observatories, such as those running on a Raspberry Pi with Astroberry or Stellarmate OS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use N.I.N.A. on a Windows laptop to image targets like the Andromeda Galaxy (M31). Is the QHY Q-Focuser a good choice?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The QHY Q-Focuser works seamlessly with N.I.N.A. through its \u003cstrong\u003eASCOM driver\u003c\/strong\u003e. You can use N.I.N.A.'s powerful autofocus routines to create V-curves and maintain perfect focus on your targets automatically throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Operating Systems\u003c\/td\u003e\n\u003ctd\u003eWindows (ASCOM), Linux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eSupported (requires external sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Port\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0 Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e5V \/ 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.qhyccd.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/qhyccd-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eQHYCCD Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":47002854293789,"sku":"QHY-110137","price":321.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/20230927620.jpg?v=1699391932"},{"product_id":"pegasus-astro-focuscube-3-universal","title":"Pegasus Astro FocusCube 3 Universal","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHigh-torque geared stepper motor with 60N.cm of pull-in torque\u003c\/li\u003e\n\u003cli\u003eLifts imaging payloads up to 6 kg\u003c\/li\u003e\n\u003cli\u003eUSB-C and 2.4GHz WiFi connectivity for OS-independent control\u003c\/li\u003e\n\u003cli\u003eUniversal L-bracket and 5 couplers (4mm to 8mm) for wide compatibility\u003c\/li\u003e\n\u003cli\u003eIncludes 9-bit external temperature sensor for focus compensation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePegasus Astro FocusCube v3 Universal\u003c\/h2\u003e\n\u003cp\u003eThe Pegasus Astro FocusCube v3 Universal integrates a high-resolution geared stepper motor with 60N.cm of torque to precisely position heavy imaging trains without slipping. Powered and controlled via a single USB-C cable drawing a maximum of 900mA at 5V, it maintains critical focus across a wide -30 °C to +80 °C operating range. The entire 260g system includes a 9-bit thermal sensor for automatic temperature compensation and fits into a compact 59 mm x 50 mm x 44 mm enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHigh-Torque Stepper: 60N.cm for Heavy Payloads\u003c\/h3\u003e\n\u003cp\u003eAt the core of the FocusCube v3 is a geared stepper motor engineered for modern astrophotography payloads. The motor delivers 60N.cm of pull-in torque, enough to lift up to 6 kg of camera, filter wheel, and corrector, even when the telescope is aimed at the zenith. The design minimizes backlash, ensuring that autofocus routines produce sharp, repeatable V-curves without mechanical play compromising the result.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOS-Independent Control: USB-C, 2.4GHz WiFi \u0026amp; Native Alpaca\u003c\/h3\u003e\n\u003cp\u003eThe FocusCube v3 eliminates software and hardware dependencies with its flexible connectivity. A single USB-C cable provides both 5V power and data, while built-in 2.4GHz WiFi allows for complete wireless control. With a native web server and ASCOM Alpaca support, you can control the focuser from any device with a web browser—PC, Mac, smartphone, or tablet—without needing specific drivers. This dual-control architecture lets you operate via USB and WiFi simultaneously for maximum flexibility in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Mounting: 5 Couplers for 4mm to 8mm Focusers\u003c\/h3\u003e\n\u003cp\u003eDesigned for broad compatibility, the FocusCube v3 includes a versatile Universal L-bracket with custom rails and mounting holes to fit a wide range of focusers. The package includes five solid motor couplers with bore diameters from 4mm to 8mm, ensuring a secure, slip-free connection to your focuser shaft. This system has been successfully installed on focusers from Baader, Explore Scientific, MoonLite, Sky-Watcher, Starlight Instruments, Takahashi, Stellarvue, and William Optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing with 9-bit Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eAchieve and maintain perfect focus throughout the night. The FocusCube v3 includes an external temperature sensor with 9-bit resolution, allowing your imaging software to monitor ambient temperature changes precisely. By correlating focus point drift with temperature, the system automatically makes micro-adjustments, ensuring your stars remain sharp from dusk till dawn. This \"focus and forget\" capability is essential for long-exposure imaging, especially with fast optical systems sensitive to thermal expansion and contraction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much weight can the FocusCube v3 Universal lift?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe FocusCube v3 is equipped with a high-resolution geared stepper motor that provides \u003cstrong\u003e60N.cm of pull-in torque\u003c\/strong\u003e. This allows it to lift an imaging payload of up to 6 kg (13.2 lbs) without slippage, even when the telescope is pointed directly at the zenith.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat focusers are compatible with the FocusCube v3 Universal bracket?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Universal L-bracket is designed for wide compatibility. The package includes five different motor couplers to fit focuser shafts with diameters from \u003cstrong\u003e4mm to 8mm\u003c\/strong\u003e. It has been confirmed to work with major brands such as Baader Steeltrack, MoonLite, Starlight FeatherTouch, Takahashi, William Optics, and many others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I control the FocusCube v3 from my phone while observing Jupiter with my SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the FocusCube v3 directly from your smartphone's web browser. Connect your phone to the focuser's WiFi hotspot, and the control interface will appear automatically. This allows you to make fine focus adjustments remotely while looking at your screen, without needing a PC at the telescope—perfect for planetary imaging or visual use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the FocusCube v3 require a separate 12V power cable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the FocusCube v3 is powered entirely by the \u003cstrong\u003e5V USB-C connection\u003c\/strong\u003e. A single cable handles both power and data, simplifying your cable management. It draws a maximum of 900mA, which is compatible with most modern USB ports and powered hubs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the FocusCube v3 handle temperature changes during an imaging session of the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe included external temperature sensor, which has a \u003cstrong\u003e9-bit resolution\u003c\/strong\u003e, constantly monitors the ambient temperature near your focuser. As the temperature drops during a long imaging session, the FocusCube v3 works with your automation software (like NINA or SGP) to make precise adjustments. This compensates for the thermal contraction of your optical tube, keeping M42's stars sharp all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is the FocusCube v3 compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe FocusCube v3 supports the latest \u003cstrong\u003eASCOM, ASCOM Alpaca, and INDI frameworks\u003c\/strong\u003e. This ensures out-of-the-box compatibility with all major astrophotography software, including NINA, Sequence Generator Pro (SGP), Voyager, APT, MaximDL, and more. It can also be controlled directly through the Pegasus Astro Unity Platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirements\u003c\/td\u003e\n\u003ctd\u003e5V DC from USB-C Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003eMax 900mA @ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eUSB-C Socket (USB2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor \u0026amp; Torque\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution geared stepper motor, 60N.cm pull-in torque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Sensor\u003c\/td\u003e\n\u003ctd\u003e9-bit resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-30 °C to +80 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e59 mm x 50 mm x 44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e260g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFocusCube V3 Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTemperature Sensor\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUniversal L Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUSB-C Cable (1.8m)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMotor Couplers (4mm to 8mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 5\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAssorted Metric Screws \u0026amp; Washers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 Set\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3x8mm Screws for Enclosure\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 6\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDocumentation\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDevelopment\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDocumentation\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFocusCube v3 Product Manual\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDevelopment\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCommand List\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Pegasus_Astro_FocusCube_v3_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/pegasusastro.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Unity Platform\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":48599484563741,"sku":"PEG-FC3-UNIV","price":364.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Pegasus-Focus-Cube-V3-1.jpg?v=1717615625"},{"product_id":"askar-sqa55-autofocus-kit","title":"Askar SQA55 Autofocus Kit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for the Askar SQA55 Astrograph\u003c\/li\u003e\n\u003cli\u003eEnables autofocus with nearly all brands of electronic focusers\u003c\/li\u003e\n\u003cli\u003eIncludes 4 MXL belts and 2 pulleys for broad compatibility\u003c\/li\u003e\n\u003cli\u003eTensioner pulley system eliminates backlash for precise focusing\u003c\/li\u003e\n\u003cli\u003eCompact design preserves space for cameras and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAskar SQA55 Autofocus Kit\u003c\/h2\u003e\n\u003cp\u003eThe Askar SQA55 Autofocus Kit is an engineered hardware solution for adding precise, automated focusing to your SQA55 astrograph. This comprehensive kit includes 4 different MXL synchronous belts, 2 MXL pulleys, and 2 L-shaped hollow adapter plates to ensure compatibility with virtually any electronic focuser. With all necessary M3 and M4 screws included, you can achieve a rigid, backlash-free connection for repeatable, accurate focusing across every imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Tensioner Pulley System for 0-Backlash Focusing\u003c\/h3\u003e\n\u003cp\u003eStandard belt-drive systems for electronic focusers often suffer from unavoidable belt slack, which introduces backlash and compromises focusing accuracy. The Askar SQA55 AF Kit solves this directly with an integrated tensioner pulley, allowing you to adjust the synchronous belt to a perfectly tight state. This eliminates slippage and ensures that every step of the focuser motor translates into precise, repeatable focus adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Fit: 4 Belts and 2 Pulleys for Any EAF\u003c\/h3\u003e\n\u003cp\u003eUnlike single-brand solutions, the SQA55 AF Kit is designed for near-universal compatibility. The inclusion of 4 different length MXL synchronous belts and 2 different pulleys ensures you have the right components to match the hardware of almost any electronic focuser on the market. This flexibility means you are not locked into a single ecosystem and can easily upgrade or change your focuser brand in the future without needing a new mounting kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible M4 Mounting for Any Imaging Train\u003c\/h3\u003e\n\u003cp\u003eMany stock adapter plates for electronic focusers are excessively long, creating mechanical interference with cameras, filter wheels, or rotators. The SQA55 AF Kit features a compact adapter bracket and 2 versatile L-shaped hollow plates secured by M4 screws. This modular design can be disassembled and reconfigured in multiple positions on the SQA55 lens tube, reserving critical space for your imaging train and preventing collisions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the Askar SQA55 Autofocus Kit over a standard EAF adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Askar SQA55 AF Kit offers three key advantages. First, its \u003cstrong\u003etensioner pulley\u003c\/strong\u003e eliminates belt backlash for higher focusing accuracy. Second, its \u003cstrong\u003ecompact adapter plates\u003c\/strong\u003e are specifically designed to avoid interference with cameras and other accessories. Finally, its modular design allows the entire assembly to be installed in different positions on the SQA55, freeing up space where you need it most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is focusing backlash and how does the Askar SQA55 AF Kit prevent it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eBacklash\u003c\/strong\u003e is a slight lag or \"slop\" in a mechanical system, often caused by a loose drive belt. In focusing, it means the focuser doesn't move immediately or precisely when the motor turns, leading to inaccurate results. The SQA55 AF Kit prevents this by using a dedicated tensioner pulley that keeps the belt tight, ensuring there is no slack and every motor movement translates directly into focuser travel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Askar SQA55 Autofocus Kit with a Pegasus Astro Cube or other large EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The kit is designed for broad compatibility with focusers that may have non-standard hole spacing. The L-shaped adapter plates have a hollow design. To adjust for a wider focuser body, you can loosen the M4x12mm fixing screws, flip the plates, adjust the spacing to the correct position, and retighten the screws to lock them in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use a full-frame camera and filter wheel on my Askar SQA55. Will this kit get in the way?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis kit is specifically designed to prevent this problem. Unlike many oversized stock mounting plates, the Askar SQA55 AF Kit is compact. Furthermore, you can mount the entire focuser assembly in different positions around the SQA55's focuser body to ensure it does not interfere with your specific imaging train configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the Askar SQA55 Autofocus Kit include 4 different MXL belts?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDifferent brands and models of electronic focusers use different sized drive pulleys and have varying mounting dimensions. Including \u003cstrong\u003e4 belts of different lengths\u003c\/strong\u003e ensures that you will have the correct size to achieve a perfect fit with your specific electronic focuser, eliminating the need to source a custom belt separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to buy extra hardware to attach a ZWO EAF to my SQA55 with this kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the kit is all-inclusive. It provides a complete set of mounting hardware, including \u003cstrong\u003e2 M4×10mm screws, 2 M3×10mm screws, and 2 M4×12mm screws\u003c\/strong\u003e, along with 3 Allen wrenches. This covers the hardware needed for most popular electronic focusers, including the ZWO EAF.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAskar SQA55 Astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible with most electronic focuser brands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMXL Synchronous Belts\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMXL Synchronous Pulleys\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdapter Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eL-Shaped Hollow Plates\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAllen Wrenches\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4×10mm Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3×10mm Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4×12mm Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.sharpstar-optics.com\/download_list_1\/7.html\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":49058191704349,"sku":"ASK-SQA55AFKIT","price":122.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-SQA55-AF-Kit-1.jpg?v=1724095103"},{"product_id":"primalucelab-esatto-3-5-lp-robotic-focuser","title":"PrimaLuceLab ESATTO 3.5\" LP Robotic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLow-profile robotic focuser designed for astrographs\u003c\/li\u003e\n\u003cli\u003eHigh payload capacity for heavy imaging trains\u003c\/li\u003e\n\u003cli\u003eWiFi and USB-C for complete remote control\u003c\/li\u003e\n\u003cli\u003eDedicated ARCO port for rotator integration\u003c\/li\u003e\n\u003cli\u003eIncludes PrimaLuceLab PLAY astrophotography software\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ESATTO 3.5\" LP Robotic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 3.5\" LP Robotic Focuser is a low-profile solution for demanding astrographs, compatible with accessories like an M98 to M68 adapter or a 3\" visual back, that integrates with the ARCO rotator and EAGLE computer for full remote control. Designed specifically for optical systems with minimal backfocus, it delivers high-precision, robotic focusing without compromising your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe ESATTO 3.5\" LP: A Low-Profile Focuser for Astrographs\u003c\/h3\u003e\n\u003cp\u003eMany astrographs and high-speed imaging systems have very little backfocus to spare, making it difficult to install a traditional motorized focuser. The ESATTO 3.5\" LP solves this by providing a robust, large-aperture focusing mechanism in an exceptionally thin body, allowing you to achieve critical focus with heavy camera payloads without vignetting or mechanical flexure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Payload Capacity:\u003c\/strong\u003e Engineered to carry heavy imaging trains, including large cameras, filter wheels, and rotators, without slipping or losing focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Body:\u003c\/strong\u003e Its slim design preserves precious backfocus, making it possible to add a motorized focuser to optical tubes that previously could not accommodate one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Free Aperture:\u003c\/strong\u003e The design ensures that the light cone from your telescope passes through unobstructed, preventing vignetting even with large-format sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM98 \u0026amp; 3\" Adapters for Secure System Integration\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3.5\" LP features a large M98x1 female thread on the camera side, providing a secure, non-flexing connection point for your equipment. PrimaLuceLab offers a comprehensive system of optional adapters to connect virtually any camera or accessory, including a 3\" visual back for eyepieces or accessories with a 3\" nosepiece.\u003c\/p\u003e\n\u003cp\u003eA key feature of the adapter system is the stop ring, which allows you to rotate your camera to the perfect orientation for framing your target and then lock it down without losing coaxial alignment. This is critical for maintaining flat fields and achieving precise compositions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRemote Control with PLAY, ASCOM, WiFi, and USB-C\u003c\/h3\u003e\n\u003cp\u003eThis focuser is a fully robotic component, designed for complete remote operation. It includes a modern USB-C port for a reliable connection to an EAGLE control unit or any Windows computer, and also features built-in WiFi for wireless control from a smartphone or tablet via the ESATTO Virtual HandPad app.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eARCO Port:\u003c\/strong\u003e A dedicated port allows direct connection to the PrimaLuceLab ARCO rotator, creating an integrated rotating focuser that shares power and communication through a single cable, minimizing clutter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLAY Software Included:\u003c\/strong\u003e The ESATTO 3.5\" LP comes with PLAY, PrimaLuceLab's own astrophotography software, for a seamless user experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASCOM Compliant:\u003c\/strong\u003e A standard ASCOM driver ensures compatibility with third-party astrophotography software like N.I.N.A., SGP, and Maxim DL, allowing you to integrate it into your existing workflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the ESATTO 3.5\" LP ideal for an astrograph telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAstrographs often have very limited backfocus. The \u003cstrong\u003eESATTO 3.5\" LP's\u003c\/strong\u003e primary advantage is its extremely low-profile design, which allows it to fit into optical trains where a thicker focuser would not. It also offers a high payload capacity and a large clear aperture, preventing flexure and vignetting with heavy, large-sensor camera setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I control the ESATTO 3.5\" LP focuser remotely?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou have multiple options for controlling the \u003cstrong\u003eESATTO 3.5\" LP\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C:\u003c\/strong\u003e Connect it to an EAGLE computer or any Windows PC for control via ASCOM drivers or the included PLAY software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi:\u003c\/strong\u003e Use the built-in WiFi to connect to your smartphone or tablet and control focusing with the ESATTO Virtual HandPad app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEAGLE Integration:\u003c\/strong\u003e When connected to an EAGLE, it becomes part of a fully integrated, remotely managed observatory system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ESATTO 3.5\" LP work with my Celestron EdgeHD 1100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. PrimaLuceLab makes an optional adapter specifically for telescopes with the large 3.3\" SC thread, such as the Celestron SCT (11\" and 14\") and EdgeHD (9.25\", 1100, and 1400) models. This adapter allows you to securely mount the \u003cstrong\u003eESATTO 3.5\" LP\u003c\/strong\u003e directly to your telescope's rear cell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of connecting the ARCO rotator to the ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eESATTO 3.5\" LP\u003c\/strong\u003e features a dedicated ARCO port. This allows you to connect an ARCO rotator directly to the focuser with a single cable that provides both power and data. This creates a single, compact unit that acts as a rotating focuser, allowing you to frame your target perfectly without additional power or USB cables running to the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is included with the ESATTO 3.5\" LP focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eESATTO 3.5\" LP\u003c\/strong\u003e includes a license for PLAY, PrimaLuceLab's dedicated astrophotography software. It also comes with an ASCOM driver, ensuring it is compatible with most third-party astronomy software packages like N.I.N.A., Sequence Generator Pro (SGP), and others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach my camera to the ESATTO 3.5\" LP?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe focuser has a standard M98x1 female thread on the camera side. You will need an optional adapter to match your specific camera or accessory. PrimaLuceLab offers a wide range of adapters, such as M98 to M68, M98 to M57, and M98 to M48, many of which include a stop ring to lock the camera's rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eAdapter from M98 to M68 with stop ring for ESATTO 3,5” LP; 3\" visual back for ESATTO 3,5” LP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":49131403673885,"sku":"PLL-PLLEST35LP","price":1673.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-ESATTO-3-5-LP-Robotic-Focuser.jpg?v=1725732778"},{"product_id":"zwo-eafn-electronic-automatic-focuser","title":"ZWO EAFN Electronic Automatic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHandles imaging payloads up to 11 lbs (5kg)\u003c\/li\u003e\n\u003cli\u003eHigh-precision stepper motor with 128:1 gear ratio\u003c\/li\u003e\n\u003cli\u003eSingle USB-C port for power and data\u003c\/li\u003e\n\u003cli\u003eASCOM, INDI, and ASIAIR compatible\u003c\/li\u003e\n\u003cli\u003eAll-metal, red anodized housing weighing 0.47 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO Electronic Automatic Focuser (EAFN)\u003c\/h2\u003e\n\u003cp\u003eThe ZWO EAFN Electronic Automatic Focuser supports imaging trains up to 11 lbs with a high-precision stepper motor featuring a 128:1 reduction ratio. This entire system is powered and controlled via a single USB-C connection and is housed in a compact, all-metal body that weighs only 0.47 lbs (215g).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing with an 11 lb Capacity\u003c\/h3\u003e\n\u003cp\u003eThe EAFN's stepper motor and gearbox confidently drive imaging loads up to 11 lbs (5kg), eliminating focus shift even with heavy components like cooled cameras, filter wheels, and off-axis guiders. This robust capacity ensures that autofocus routines run reliably without mechanical slippage, maintaining critical focus on demanding optical systems like Schmidt-Cassegrains and large refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStepper Motor Precision with a 128:1 Ratio\u003c\/h3\u003e\n\u003cp\u003eAt the core of the EAFN is a stepper motor with a 7.5° step angle, geared down through a 128:1 reducer. This results in incredibly fine, repeatable focus adjustments of approximately 2.8 microns per step, allowing software to dial in perfect focus that is far more precise than humanly possible with a manual knob. While the EAFN can execute these adjustments automatically in response to filter changes or meridian flips, achieving focus correction based on temperature shifts requires the optional ZWO Temperature Sensor for real-time thermal data.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Adjustments:\u003c\/strong\u003e The high-resolution motor allows autofocus software to achieve a significantly sharper V-curve, resulting in tighter stars across the entire frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRepeatability:\u003c\/strong\u003e Return to a precise focus point for different filters or after temperature changes with absolute accuracy, night after night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Control:\u003c\/strong\u003e The EAFN connects directly to the ASIAIR ecosystem or ASCOM\/INDI-compatible software, integrating seamlessly into established imaging workflows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eZWO EAFN vs. Original ZWO EAF\u003c\/h3\u003e\n\u003cp\u003eThe EAFN is a direct evolution of the original, widely-adopted ZWO EAF, incorporating key hardware upgrades for modern astrophotography rigs. The primary advantages of the newer EAFN are the higher-torque motor and the streamlined connectivity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePayload Capacity:\u003c\/strong\u003e The original EAF was also rated for 11 lbs (5kg). The EAFN uses a higher-torque motor, which requires more input power than earlier ASIAIR USB ports supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower and Data:\u003c\/strong\u003e The EAFN uses a single, modern USB-C port for both 5V power and data. The original EAF required a separate 12V DC barrel connector for power and a legacy USB 2.0 Type-B port for data, complicating cable management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e While sharing a similar mounting pattern for broad compatibility, the EAFN features a refined, slightly more compact housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 11 lb capacity of the ZWO EAFN benefit imaging with an SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSchmidt-Cassegrain telescopes often require moving a heavy primary mirror for focusing. The ZWO EAFN's \u003cstrong\u003e11 lb (5kg) payload capacity\u003c\/strong\u003e provides ample torque to move the mirror assembly smoothly and without motor strain, even with a heavy camera, filter wheel, and focal reducer attached. This prevents mirror shift and ensures autofocus routines are consistent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to use the ZWO EAFN's autofocus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ZWO EAFN integrates seamlessly with ZWO's own \u003cstrong\u003eASIAIR\u003c\/strong\u003e devices. For PC or Mac-based control, it is fully compatible with any software that supports the \u003cstrong\u003eASCOM\u003c\/strong\u003e (Windows) or \u003cstrong\u003eINDI\u003c\/strong\u003e (Mac\/Linux) platforms, including popular applications like N.I.N.A., Sequence Generator Pro, and KStars\/Ekos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ZWO EAFN for visual observing without a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While its primary function is for automated imaging, you can control the ZWO EAFN manually without a computer by connecting the optional \u003cstrong\u003eZWO Hand Controller\u003c\/strong\u003e (sold separately) to its 3.5mm port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ZWO EAFN work with my William Optics refractor during a multi-night run of the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The ZWO EAFN is compatible with most William Optics focusers. For a multi-night project on M31, you can program your imaging software (like N.I.N.A. or ASIAIR) to automatically re-run the autofocus routine at set intervals, after every filter change, or after a meridian flip, ensuring your focus remains sharp across multiple nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the ZWO EAFN require a separate 12V power supply?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the ZWO EAFN simplifies cable management by drawing both power and data through its single \u003cstrong\u003eUSB-C port\u003c\/strong\u003e when connected to a computer or ASIAIR. The older ZWO EAF model required a separate 12V power input in addition to its USB data cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the ZWO EAFN over the older ZWO EAF model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe two main advantages are payload and connectivity. The ZWO EAFN supports an \u003cstrong\u003e11 lb payload\u003c\/strong\u003e with a higher-torque motor. It also uses a single \u003cstrong\u003eUSB-C cable\u003c\/strong\u003e for both power and data, whereas the original required two separate cables (USB-B and a 12V DC barrel jack).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eZWO-EAFN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eElectronic Stepper Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e11 lbs (5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eStepper Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Angle\u003c\/td\u003e\n\u003ctd\u003e7.5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduction Ratio\u003c\/td\u003e\n\u003ctd\u003e128:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution per Step\u003c\/td\u003e\n\u003ctd\u003eApprox. 2.812 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower \/ Data Interface\u003c\/td\u003e\n\u003ctd\u003eUSB-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V @ 500mA (via USB-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e41 mm x 52 mm x 70.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.47 lbs (215 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eZWO Electronic Automatic Focuser\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStandard Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2m USB 2.0 Type-C to Type-A Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlexible Couplings (4-4mm, 4-5mm, 4-6mm, 4-7mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM5 x 10 Hex Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 x 8 Hex Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSpacers (5mm Inner Diameter)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 5\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e3mm Hex Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2mm Hex Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eQuick Guide\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":50073236898077,"sku":"ZWO-EAFN","price":279.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ZWO-EAFN-1.jpg?v=1750191397"},{"product_id":"zwo-eaf-pro-electronic-automatic-focuser","title":"ZWO EAF Pro Wireless Electronic Automatic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e11 lb (5kg) Payload Capacity\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0 and USB-C Connectivity\u003c\/li\u003e\n\u003cli\u003eIntegrated 2500 mAh Rechargeable Battery\u003c\/li\u003e\n\u003cli\u003eStepper Motor with 128:1 Gear Ratio\u003c\/li\u003e\n\u003cli\u003eHigh Resolution 2.812 μm\/step Movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO EAF Pro Wireless Electronic Automatic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe ZWO EAF Pro automates critical focus with an 11 lb payload capacity and a stepper motor resolution of 2.812 μm per step, ensuring sharp stars even with heavy imaging trains. Integrated Bluetooth 5.0 and a 2500 mAh battery allow for fully wireless operation, while the entire unit adds only 0.57 lbs (258g) to your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUntethered Focusing with Bluetooth 5.0\u003c\/h3\u003e\n\u003cp\u003eThe EAF Pro’s primary advantage is its ability to operate without a data or power cable. The integrated Bluetooth 5.0 chip pairs directly with the ASIAIR, ZWO AIR cameras, or a Bluetooth-equipped PC running ZWO software. This eliminates a common source of cable snags and drag that can affect tracking, creating a cleaner and more reliable imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Under Load: 11 lb Capacity \u0026amp; 2.812 μm Resolution\u003c\/h3\u003e\n\u003cp\u003eA stepper motor with a 7.5° step angle and a 128:1 reduction ratio produces incredibly fine, repeatable movements of just 2.812 μm per step. This level of precision allows autofocus routines to achieve critical focus that is difficult to match by hand. With a robust 11 lb (5kg) payload capacity, the EAF Pro can drive the focuser on telescopes loaded with heavy cameras, filter wheels, and off-axis guiders without slipping or stalling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eZWO EAF Pro vs. Standard EAF\u003c\/h3\u003e\n\u003cp\u003eWhile both focusers deliver automated precision, the EAF Pro is a significant upgrade for imagers seeking a streamlined, cable-free setup.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e The standard EAF is a USB-only device. The EAF Pro adds Bluetooth 5.0 for complete wireless control, retaining a USB-C port for wired connections and charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e The standard EAF relies on 5V power from its USB connection. The EAF Pro features an internal 2500 mAh rechargeable battery for standalone operation, and can also be powered via its USB-C port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-Device Control:\u003c\/strong\u003e The EAF Pro includes physical In\/Out buttons, allowing you to make coarse focus adjustments at the telescope without needing any software or a hand controller. The standard EAF lacks these integrated controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMultiple Control Paths for 4 Different Workflows\u003c\/h3\u003e\n\u003cp\u003eThe ZWO EAF Pro adapts to your specific setup with four distinct control methods. Connect wirelessly via Bluetooth for the cleanest setup with an ASIAIR, or use the USB-C port for a robust, wired connection to a PC with ASCOM or INDI drivers. For manual adjustments at the telescope, built-in buttons allow for quick, software-free focusing, and a 3.5mm jack provides an input for the optional ZWO hand controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ZWO EAF Pro maintain focus during temperature drops?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen paired with software like the ASIAIR and the optional ZWO temperature sensor, the EAF Pro can be configured to automatically refocus when the ambient temperature changes by a set amount. As the telescope's metal tube contracts in the cold, the focal point shifts. The EAF Pro makes the small, precise adjustments needed to counteract this thermal shift, keeping your images sharp all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to use the ZWO EAF Pro wirelessly?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use the EAF Pro wirelessly, you need a control device with Bluetooth. This can be a \u003cstrong\u003eZWO ASIAIR (Plus or Pro)\u003c\/strong\u003e, a ZWO AIR camera, or a computer with Bluetooth running ZWO's PC software. The internal 2500 mAh battery powers the focuser itself, so no power cable is required for wireless operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ZWO EAF Pro work with my Celestron 8\" SCT's focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the EAF Pro is compatible with most Celestron SCTs, but it requires a specific \u003cstrong\u003eSCT mounting bracket\u003c\/strong\u003e (sold separately). The standard bracket included with the EAF Pro is designed for Crayford and rack-and-pinion focusers found on refractors and Newtonians. The SCT bracket allows the EAF to securely couple to the SCT's mirror focusing knob.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the ZWO EAF Pro handle a heavy imaging train for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. With an \u003cstrong\u003e11 lb (5kg) payload capacity\u003c\/strong\u003e, the EAF Pro is designed for exactly this scenario. A typical deep-sky imaging train with a cooled camera, a large filter wheel, and an off-axis guider is well within its capacity. It provides the torque needed to move the focuser drawtube smoothly without slipping, ensuring the autofocus routine can achieve and maintain sharp stars on bright targets like M42.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main difference between the ZWO EAF Pro and the standard 5V ZWO EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary differences are \u003cstrong\u003epower and connectivity\u003c\/strong\u003e. The standard EAF requires a USB cable for both power (5V) and data. The EAF Pro adds an internal 2500 mAh battery and Bluetooth 5.0, allowing it to function completely wirelessly. It also includes physical focus buttons on the body for manual control without a computer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I charge the internal battery of the EAF Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe internal 2500 mAh battery is charged via the \u003cstrong\u003eUSB-C port\u003c\/strong\u003e. You can connect it to any standard USB power source, such as a computer, a USB wall adapter, or a portable power tank. A full charge can last for several nights of typical imaging, depending on the frequency of autofocus routines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU Number\u003c\/td\u003e\n\u003ctd\u003eZWO-EAF-PRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eElectronic Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eStepper Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Angle\u003c\/td\u003e\n\u003ctd\u003e7.5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReduction Ratio\u003c\/td\u003e\n\u003ctd\u003e128:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution per Step\u003c\/td\u003e\n\u003ctd\u003e~2.812 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e11 lbs (5kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Interface\u003c\/td\u003e\n\u003ctd\u003eUSB-C, Bluetooth 5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V @ 500mA (via USB-C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Battery\u003c\/td\u003e\n\u003ctd\u003e2500 mAh, Rechargeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e41 mm x 52 mm x 73.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.57 lbs (258g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eZWO EAF Pro Body\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStandard Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2m USB 2.0 Type-C to Type-A Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlexible Couplings (4-4mm, 4-5mm, 4-6mm, 4-7mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM5 x 10 Hex Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM4 x 8 Hex Screws\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSpacers (5mm Inner Diameter)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 5\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e3mm Hex Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2mm Hex Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eQuick Guide\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":50073238536477,"sku":"ZWO-EAF-PRO","price":419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ZWO-EAF-Pro-2.jpg?v=1750191715"},{"product_id":"askar-af-kit-for-fma180-pro","title":"Askar AF Kit for FMA180 Pro","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables Electronic Autofocus on the Askar FMA180 Pro\u003c\/li\u003e\n\u003cli\u003eDesigned for Seamless Integration with ZWO EAF\u003c\/li\u003e\n\u003cli\u003eBroadly Compatible with Most Electronic Focusers\u003c\/li\u003e\n\u003cli\u003eSecure, No-Slip Synchronous Belt-Drive System\u003c\/li\u003e\n\u003cli\u003eIncludes Custom Mounting Bracket and Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAskar AF Kit for FMA180 Pro\u003c\/h2\u003e\n\u003cp\u003eThe Askar AF Kit for FMA180 Pro provides the essential mechanical linkage to integrate your lens with a ZWO EAF or other electronic autofocuser. This kit replaces manual focusing with automated, repeatable precision, allowing you to achieve and maintain critical focus throughout an imaging session. It is designed specifically for the FMA180 Pro astrograph, ensuring a secure, no-slip connection between the focuser motor and the lens's focusing ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated and Precise Focusing for the FMA180 Pro\u003c\/h3\u003e\n\u003cp\u003eBy connecting an electronic focuser to your FMA180 Pro, this kit unlocks the ability for your imaging software to manage focus automatically. This eliminates focus drift caused by temperature changes and achieves a level of accuracy that is difficult to replicate by hand, improving the efficiency and quality of your data acquisition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Purpose-Built Bracket and Belt-Drive System\u003c\/h3\u003e\n\u003cp\u003eThe core of the Askar AF Kit is a rigid, black metal bracket engineered to support the electronic focuser securely. This bracket attaches directly to the body of the FMA180 Pro, replacing the original dovetail plate. A synchronous belt and pulley create a positive, direct-drive connection to the lens's focusing ring, preventing slippage and ensuring the motor's movements translate into precise focus adjustments every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Askar AF Kit for FMA180 Pro used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis kit is an accessory that allows you to connect an electronic autofocuser, such as the \u003cstrong\u003eZWO EAF\u003c\/strong\u003e, to your \u003cstrong\u003eAskar FMA180 Pro lens\u003c\/strong\u003e. This enables automated, software-controlled focusing, which is crucial for maintaining sharp stars during long astrophotography sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ZWO EAF or FMA180 Pro lens included with the Askar AF Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e The Askar AF Kit includes only the bracket, belt, pulley, and mounting screws required for installation. The Askar FMA180 Pro lens and the ZWO EAF (or any other electronic focuser) must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Askar AF Kit work with electronic focusers other than the ZWO EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While specifically designed for a perfect fit with the ZWO EAF, the kit is broadly compatible with most other electronic focusers available to amateur astronomers. The bracket provides a stable platform for various motor bodies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Askar AF Kit attach to the FMA180 Pro lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe installation involves removing the original dovetail plate and finder base from the FMA180 Pro. The new bracket from the kit then bolts directly onto the lens body. The EAF motor attaches to the bracket, and a synchronous belt loops around the EAF's pulley and the lens's focusing ring to complete the connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Askar AF Kit to keep my FMA180 Pro in focus while imaging the Orion Nebula (M42) all night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, that is its primary purpose. When paired with an electronic focuser and control software, the kit allows you to run autofocus routines periodically throughout the night. This automatically compensates for focus shifts caused by falling temperatures, ensuring your stars remain sharp from the first sub-exposure to the last.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I mount the FMA180 Pro on a small star tracker, will the Askar AF Kit and an EAF add too much weight or bulk?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe kit and an EAF add minimal weight and bulk, but it is a consideration for payload-limited mounts. The main change is the profile of the lens, with the motor extending from the side. You will need to ensure proper clearance and re-balance your setup in both axes after installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.sharpstar-optics.com\/download_list_1\/7.html\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software \u0026amp; Drivers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":50974208360733,"sku":"ASK-ASKAF180P","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ASK-ASKAF180P-1.jpg?v=1772041888"},{"product_id":"askar-fra400c-af-kit","title":"Askar FRA400C AF Kit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables Automatic Focusing on the Askar FRA400C\u003c\/li\u003e\n\u003cli\u003eCompatible with Most Brands of Electronic Focusers\u003c\/li\u003e\n\u003cli\u003eIncludes Five Synchronous Belts for a Secure Fit\u003c\/li\u003e\n\u003cli\u003eKit Contains Two MXL Pulleys and a 2mm Allen Wrench\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAskar FRA400C AF Kit\u003c\/h2\u003e\n\u003cp\u003eThe Askar FRA400C AF Kit provides the essential mechanical linkage to automate your imaging workflow, connecting your electronic focuser to the FRA400C astrograph using a system of two MXL pulleys and five included synchronous belts to ensure a perfect, slip-free fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdd Precision Autofocus to Your Askar FRA400C\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed specifically for the Askar FRA400C, allowing you to integrate an electronic auto focuser (EAF) for hands-free, repeatable focus. Automating focus eliminates manual adjustments, saving valuable imaging time and ensuring your stars are critically sharp throughout the night, even as temperatures change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Compatibility: Integrate Your Preferred EAF with 5 Included Belts\u003c\/h3\u003e\n\u003cp\u003eEngineered for broad compatibility, this kit works with most electronic focusers on the market, regardless of brand. To accommodate the physical differences between EAF models, the kit includes five MXL synchronous belts of varying lengths, ensuring you can achieve the correct tension for reliable operation. The package also contains two MXL synchronous pulleys and a 2mm allen wrench for a straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Askar FRA400C AF Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Askar FRA400C AF Kit is a mechanical accessory that allows you to connect a third-party electronic auto focuser (EAF) to your Askar FRA400C telescope. This enables software-controlled, automated focusing for astrophotography, improving sharpness and efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the FRA400C AF Kit work with my ZWO EAF or Pegasus Astro motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the kit is designed to be universally compatible with most popular electronic focuser brands, including ZWO and Pegasus Astro. It includes five different belt lengths to accommodate the various sizes and mounting positions of different EAF models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the FRA400C AF Kit include the electronic focuser motor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This kit contains only the mechanical components—pulleys, belts, and mounting hardware—to connect an EAF to the telescope. The \u003cstrong\u003eelectronic focuser motor and the Askar FRA400C telescope are sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the FRA400C AF Kit come with five different belts?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDifferent electronic focuser models have different body dimensions and mounting points. The inclusion of \u003cstrong\u003efive belts of varying lengths\u003c\/strong\u003e ensures that you can find the perfect fit for your specific EAF, achieving the correct tension for precise, slip-free focusing without needing to source your own belt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this kit difficult to install on my FRA400C refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is designed to be straightforward for users familiar with astrophotography hardware. The kit attaches to the focuser of the FRA400C refractor, and the included 2mm Allen wrench is provided for the necessary adjustments. You will need to supply your own electronic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this AF kit on a telescope other than the Askar FRA400C?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this kit is specifically designed and machined to fit the focuser housing and dimensions of the Askar FRA400C astrograph. It is not intended for use with other telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":52851340935453,"sku":"ASK-FRA400C-AFKIT","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-FRA400C-AF-KIT-1_3c417898-2411-4729-b0e4-4d04cf4c93b7.jpg?v=1788401820"},{"product_id":"askar-acl200-af-kit","title":"Askar ACL200 AF Kit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds electronic autofocus capability to the Askar ACL200 lens\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with ZWO EAF and other electronic focusers\u003c\/li\u003e\n\u003cli\u003eIncludes a dedicated mounting holder and synchronous belt system\u003c\/li\u003e\n\u003cli\u003eReplaces the stock dovetail with a Vixen-style plate for secure mounting\u003c\/li\u003e\n\u003cli\u003eEnables precise, remote focus control for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAskar ACL200 AF Kit\u003c\/h2\u003e\n\u003cp\u003eThe Askar ACL200 AF Kit is the definitive solution for adding precise, automated focusing to your Askar ACL200 camera lens. This mechanical kit provides the essential hardware to integrate a ZWO Electronic Automatic Focuser (EAF) or other compatible motor, enabling you to achieve critical focus remotely through software. By motorizing the ACL200's manual focus ring, you can compensate for temperature shifts and nail perfect stars without touching your imaging rig. Please note, the ACL200 lens and the ZWO EAF are for demonstration purposes and must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focusing for the Askar ACL200 Lens\u003c\/h3\u003e\n\u003cp\u003eAs electronically-assisted astronomy becomes standard practice, motorized focus is no longer a luxury but a necessity for sharp, consistent images. This AF kit is designed specifically for the ACL200 lens, allowing you to connect an electronic focuser and control it from your computer. This unlocks the ability to use autofocus routines in popular acquisition software, ensuring your images remain critically sharp throughout an entire imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRobust Construction for Reliable Autofocus\u003c\/h3\u003e\n\u003cp\u003eThe core of the Askar ACL200 AF Kit is a rigid, black-anodized holder that securely cradles the electronic focuser and attaches directly to the lens collar. A synchronous belt and pulley system translates the motor's precise movements to the lens's focus ring, delivering smooth and accurate adjustments. The kit also includes a Vixen-style dovetail plate, replacing the lens's original foot and providing a stable, industry-standard connection to your telescope mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of the Askar ACL200 AF Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Askar ACL200 AF Kit is a mechanical adapter that allows you to attach an electronic focuser, such as the ZWO EAF, to your Askar ACL200 lens. This enables you to achieve precise, automated focus control from a computer, which is essential for modern astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Askar ACL200 AF Kit include the ZWO EAF or the lens itself?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo, it does not.\u003c\/strong\u003e This is a critical point. The kit contains only the mechanical hardware (holder, belt, pulley, screws, dovetail plate) required to connect a focuser to the lens. The Askar ACL200 lens and the ZWO EAF (or any other electronic focuser) must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat electronic focusers are compatible with the Askar ACL200 AF Kit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe kit is specifically designed for a seamless fit with the popular \u003cstrong\u003eZWO EAF\u003c\/strong\u003e. However, its design may allow it to work with other electronic focusers that share a similar form factor and shaft size, though compatibility is not guaranteed with other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Askar ACL200 AF Kit attach to a telescope mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe kit includes an Askar Vixen-style dovetail plate. This plate attaches to the bottom of the lens collar and the EAF holder, replacing the original mounting foot. You can then clamp this dovetail plate directly onto any mount equipped with a Vixen-style saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) with my ACL200. How does this kit help over a long night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs ambient temperature drops during the night, the focus of your lens will shift, softening your images. The Askar ACL200 AF Kit, paired with an EAF and software, allows you to run autofocus routines periodically. This automatically corrects the focus, ensuring your stars remain sharp in every sub-exposure, which is crucial for a detailed final image of M31.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Askar ACL200 AF Kit on a portable star tracker for wide-field targets like the Rho Ophiuchi cloud complex?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The kit provides a secure Vixen dovetail, which is a standard mounting interface. As long as your star tracker has a Vixen-style saddle, the entire assembly (lens, camera, and AF kit) will mount securely, allowing you to benefit from automated focusing even with a lightweight, portable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":52851340968221,"sku":"ASK-ASKAREAFKIT","price":151.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-ACL200-AF-Kit-1_83e65b98-4f98-42b0-aaa7-b125f265b515.jpg?v=1788401829"},{"product_id":"askar-50p-af-kit","title":"Askar 50P AF KIT","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables automated focusing for the Askar 50P astrograph\u003c\/li\u003e\n\u003cli\u003eCompatible with almost all brands of electronic focusers\u003c\/li\u003e\n\u003cli\u003eEliminates manual focus adjustments for improved precision\u003c\/li\u003e\n\u003cli\u003eIncreases imaging efficiency, especially during temperature changes\u003c\/li\u003e\n\u003cli\u003eIncludes a full set of brackets, pulleys, and belts for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003e50P AF KIT\u003c\/h2\u003e\n      \u003cp\u003eThe 50P AF Kit is the essential mechanical interface for adding precise, automated focusing to your Askar 50P astrograph. This kit is engineered to connect your telescope to nearly any electronic auto focuser (EAF), replacing manual adjustments with repeatable, software-driven control. By enabling autofocus, you can achieve and maintain critically sharp stars throughout your imaging sessions, even as ambient temperatures change.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAutomated Focusing for the Askar 50P\u003c\/h3\u003e\n      \u003cp\u003eThis kit is designed specifically to integrate an electronic focuser with the Askar 50P's helical focuser. It provides the physical connection necessary to let software manage the fine adjustments required for perfect stars, a task that is difficult and time-consuming to do by hand. This upgrade is critical for remote imaging and for capturing long-exposure projects where focus can drift overnight.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eUniversal Compatibility: Mount Nearly Any Electronic Focuser\u003c\/h3\u003e\n      \u003cp\u003eThe primary design goal of the 50P AF Kit is broad compatibility. It is not locked into a single brand's ecosystem. The included selection of mounting hardware, synchronous belts, and pulleys allows you to install electronic focusers from virtually any manufacturer, giving you the freedom to choose the EAF that best fits your existing setup and software workflow.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Complete Installation Kit for Precision Control\u003c\/h3\u003e\n      \u003cp\u003eThis kit provides all the necessary components to bridge the gap between your focuser motor and the 50P. It includes an adapter bracket, L-shaped plates, multiple MXL synchronous pulleys of different diameters, and several MXL synchronous belts of varying lengths. This comprehensive assortment ensures you can achieve the correct tension and alignment for smooth, backlash-free operation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of the 50P AF Kit?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 50P AF Kit is a mechanical adapter set that allows you to attach a third-party \u003cstrong\u003eelectronic auto focuser (EAF)\u003c\/strong\u003e to your Askar 50P astrograph. It enables automated, software-controlled focusing, which is more precise and efficient than manual focusing.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich electronic focusers work with the 50P AF Kit?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe kit is designed for near-universal compatibility. It includes a variety of belts, pulleys, and brackets to fit \u003cstrong\u003ealmost all brands\u003c\/strong\u003e of electronic focusers available to astronomers. You are not restricted to a specific brand of EAF.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 50P AF Kit include the electronic focuser motor or the 50P telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e This is a mounting kit only. The Askar 50P telescope and the electronic auto focuser motor must be purchased separately. This kit provides the specialized hardware to connect the two.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 50P AF Kit help when imaging deep-sky objects like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor long imaging sessions required for faint targets like M31, temperature drops overnight can cause the telescope's focus to shift, blurring your images. With an EAF installed via the 50P AF Kit, your software can automatically run a focusing routine periodically, ensuring your stars remain pinpoint sharp for every sub-exposure without any manual intervention.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat hardware does the 50P AF Kit include for mounting?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe kit contains a complete set of installation hardware. This includes:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eAn adapter bracket and L-shaped plates\u003c\/li\u003e\n      \u003cli\u003eMultiple MXL synchronous belts of different lengths\u003c\/li\u003e\n      \u003cli\u003eTwo MXL synchronous pulleys of different diameters\u003c\/li\u003e\n      \u003cli\u003eAll necessary screws and Allen wrenches for assembly\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to manually focus my Askar 50P at all after installing the 50P AF Kit and an EAF?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. Once the kit and an electronic focuser are properly installed and configured with your imaging software, all focusing operations are handled by the motor. You will no longer need to touch the telescope's focuser manually, reducing vibrations and improving overall precision.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":52851341984029,"sku":"ASK-50P-AFKIT","price":111.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-50P-AF-KIT-1_21b2c526-79be-4690-9fce-af5f63a44a9b.jpg?v=1788401838"},{"product_id":"askar-worm-and-gear-automatic-telescope-focuser-waf","title":"Askar Worm-and-Gear Automatic Telescope Focuser (WAF)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e20 kg Equivalent Load Capacity\u003c\/li\u003e\n\u003cli\u003e0.0182° Minimum Resolution Step Size\u003c\/li\u003e\n\u003cli\u003e1:99 Worm-Gear Stepper Motor\u003c\/li\u003e\n\u003cli\u003eNative ASCOM Alpaca \u0026amp; Indigo Support\u003c\/li\u003e\n\u003cli\u003e373 g Body Weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAskar Worm-and-Gear Automatic Telescope Focuser (WAF)\u003c\/h2\u003e\n\u003cp\u003eThe Askar Worm-and-Gear Automatic Telescope Focuser (WAF) leverages a 1:99 gear reduction ratio to achieve a repeatable step resolution of just 0.0182°. Its worm-gear stepper motor provides an equivalent load capacity of 20 kg, ensuring no-slip focusing for heavy imaging trains, all within a compact body weighing only 373 g.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 20 kg Capacity Worm-Gear Drive with 0.0182° Resolution\u003c\/h3\u003e\n\u003cp\u003eThe core of the Askar WAF is its worm-gear drive system, which delivers a maximum output torque of 20 kgf·cm. This design inherently prevents backlash and maintains position without power, providing a rigid, no-slip connection capable of handling an equivalent load of 20 kg. With a minimum resolution of 0.0182° per step, you can achieve critically sharp focus and generate precise V-curves for automated focusing routines in software like N.I.N.A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Power and Driverless ASCOM Alpaca Control\u003c\/h3\u003e\n\u003cp\u003eThe WAF uses the ASCOM Alpaca protocol for direct integration into modern astrophotography ecosystems, eliminating the need for traditional, platform-specific drivers. This allows you to control the focuser over a network from virtually any compatible software or the dedicated Askar App. Power is supplied via a standard DC-044 12V input requiring at least 1 A, while the data connection is handled through a modern Type-C port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAskar WAF vs. ZWO EAF: A 20 kg vs. 5 kg Load Capacity\u003c\/h3\u003e\n\u003cp\u003eWhile the ZWO EAF is a benchmark for lightweight, 5V USB-powered focus control, the Askar WAF targets heavier imaging systems with its robust 12V motor and 20 kg load capacity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZWO EAF Advantage:\u003c\/strong\u003e The EAF's 5V USB power system can simplify cable management for smaller setups, and its market tenure means a wider availability of third-party mounting brackets for various telescopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAskar WAF Advantage:\u003c\/strong\u003e The WAF's worm-gear drive and 20 kgf·cm of torque provide superior holding power for heavy equipment, preventing slippage where lighter focusers might fail. Its native ASCOM Alpaca support also offers a more modern, driverless connection compared to the EAF's reliance on traditional ASCOM drivers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Askar WAF handle a heavy imaging train on a large SCT, like a C11 with a filter wheel and cooled camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. With its \u003cstrong\u003e20 kg equivalent load capacity\u003c\/strong\u003e and \u003cstrong\u003e20 kgf·cm output torque\u003c\/strong\u003e, the Askar WAF is specifically designed for heavy setups where focuser sag or slippage is a primary concern. The worm-gear drive ensures it holds the load firmly in position, even when the motor is not powered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Askar WAF's 0.0182° resolution help when focusing a fast refractor like an Askar 103APO?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe high resolution of \u003cstrong\u003e0.0182° per step\u003c\/strong\u003e allows for extremely fine adjustments, which is critical for fast optical systems that have a very narrow critical focus zone. This precision enables automated focusing software like N.I.N.A. to build accurate V-curves and achieve perfect, repeatable focus throughout an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to connect the Askar WAF to my computer and telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Askar WAF body has a 12V DC input and a Type-C data port. You will need to supply your own 12V power source (minimum 1A), a Type-C cable, and the appropriate mounting bracket and shaft coupler to attach it to your specific telescope's focuser. \u003cstrong\u003ePlease note that cables, brackets, and couplers are not included with the focuser body.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to install special drivers to use the Askar WAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The focuser uses the \u003cstrong\u003eASCOM Alpaca protocol\u003c\/strong\u003e, which is driverless. As long as your control software (N.I.N.A., SGP, etc.) supports Alpaca, it will discover and connect to the WAF over your network or USB connection without needing a separate driver installation on your computer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Askar WAF compatible with Indigo for macOS or Linux systems?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the communication protocol is listed as supporting both \u003cstrong\u003eASCOM Alpaca and Indigo\u003c\/strong\u003e. This provides cross-platform compatibility, making it a viable option for users running astrophotography software on macOS or Linux-based systems like Astroberry or Stellarmate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of a worm-gear drive in the Askar WAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA worm-gear drive provides two main advantages. First, it has \u003cstrong\u003ezero backlash\u003c\/strong\u003e, meaning there is no play when changing focus direction, leading to more accurate positioning. Second, it has a high self-locking ability, so it holds heavy loads in place even when the motor is unpowered, preventing the focuser from slipping under its own weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eWorm-gear stepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Reduction Ratio\u003c\/td\u003e\n\u003ctd\u003e1:99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Resolution\u003c\/td\u003e\n\u003ctd\u003e0.0182°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Torque\u003c\/td\u003e\n\u003ctd\u003e20 kgf·cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquivalent Load\u003c\/td\u003e\n\u003ctd\u003e20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Speed\u003c\/td\u003e\n\u003ctd\u003e2.6 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Weight\u003c\/td\u003e\n\u003ctd\u003e373 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Dimensions\u003c\/td\u003e\n\u003ctd\u003e101 mm × 47 mm × 43 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Interface\u003c\/td\u003e\n\u003ctd\u003eDC-044 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Interface\u003c\/td\u003e\n\u003ctd\u003eType-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e1 A minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eASCOM Alpaca and Indigo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Software\u003c\/td\u003e\n\u003ctd\u003eAskar APP, ASCOM Alpaca third-party software (e.g., N.I.N.A.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar_WAF_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.sharpstar-optics.com\/download_list_1\/7.html\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/askar-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eAskar 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":52851346538781,"sku":"ASK-ASKARWAF","price":279.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Askar-Worm-and-Gear-Automatic-Telescope-Focuser-WAF-1_869d74c4-a479-4047-a773-3b8b8ee719fc.jpg?v=1788401917"},{"product_id":"baader-planetarium-steeldrive-ii-motor-unit","title":"Baader Planetarium Steeldrive II Motor Unit","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHigh-torque stepper motor handles heavy imaging loads\u003c\/li\u003e\n\u003cli\u003eTiming belt drive eliminates backlash for precise autofocus\u003c\/li\u003e\n\u003cli\u003eContactless homing sensor enables repeatable absolute positioning\u003c\/li\u003e\n\u003cli\u003eIncluded temperature sensor for automated thermal focus compensation\u003c\/li\u003e\n\u003cli\u003eDesigned for direct mounting on all Baader Steeltrack focusers\u003c\/li\u003e\n\u003cli\u003eRequires Baader Steeldrive II Controller (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Steeldrive II Motor Unit\u003c\/h2\u003e\n\u003cp\u003eThe Baader Steeldrive II Motor Unit brings automated, repeatable, and temperature-compensated focusing to your imaging system. Engineered in Germany, it replaces manual adjustment with a high-torque stepper motor that connects directly to the focuser via a timing belt, a design choice that completely eliminates the backlash inherent in gearbox-driven systems. This unit is the core mechanical component for achieving critical focus with heavy camera payloads, especially in remote or automated observatory setups where precision is non-negotiable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBacklash-Free Focusing with a High-Torque Timing Belt Drive\u003c\/h3\u003e\n\u003cp\u003eUnlike motors that rely on intermediate gears, the Steeldrive II employs a direct timing belt engagement. This architecture ensures that every command from the controller results in immediate and precise focuser movement, with zero play or lag. The high-torque stepper motor is capable of moving heavy imaging trains without slipping, maintaining focus accuracy throughout an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAbsolute Positioning with a Contactless Homing Sensor\u003c\/h3\u003e\n\u003cp\u003eFor automated and remote imaging, knowing the exact focuser position is critical. The Steeldrive II motor unit features a contactless hall-effect homing sensor that provides a precise, wear-free reference point. This allows for reliable homing and the ability to return to saved absolute focus positions with perfect repeatability, night after night. Even in the event of a power loss, the system's persistent memory retains the last known position, provided the focuser has not been moved manually.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focus Correction with Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eAs ambient temperature drops during an imaging session, a telescope's optical tube contracts, causing the focal point to shift. The Steeldrive II motor unit includes a digital temperature sensor to combat this thermal drift. When paired with the Steeldrive II Controller, it can automatically make micro-adjustments to the focuser, keeping your images perfectly sharp from dusk until dawn without manual intervention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eNative Integration and Dew Heater Control for Steeltrack Focusers\u003c\/h3\u003e\n\u003cp\u003eThis motor unit is designed for seamless integration with all Baader Diamond Steeltrack and classic Steeltrack focusers, attaching easily via a built-in dovetail clamp. The housing is CNC-milled from aluminum for durability and precise alignment. An auxiliary power output on the controller (sold separately) can even power a dew heater, using the temperature sensor to maintain your optics just above the dew point, further streamlining your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat else do I need to use the Steeldrive II Motor Unit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Steeldrive II Motor Unit requires the \u003cstrong\u003eBaader Steeldrive II Controller\u003c\/strong\u003e to function. The controller provides the power, hand control interface, and processing for features like temperature compensation. One controller is needed for each motor you wish to operate simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Steeldrive II Motor Unit attach to a Baader Steeltrack focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt attaches directly and securely using a built-in dovetail clamp. Baader Steeltrack focusers come with a matching dovetail machined into the focuser body, allowing for a simple and rigid connection without the need for custom brackets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Steeldrive II Motor Unit with a non-Baader focuser like a FeatherTouch?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Steeldrive II can be adapted to other focusers, including FeatherTouch models. However, this typically requires a specific adapter bracket which is not included with the motor unit and may need to be sourced separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the Steeldrive II's timing belt system over a gearbox?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe timing belt provides a direct, positive engagement between the motor and the focuser shaft. This \u003cstrong\u003eeliminates backlash\u003c\/strong\u003e, which is the \"slop\" or \"play\" found in gear-based systems. For autofocusing routines that move the focuser in and out, eliminating backlash is essential for achieving quick, sharp, and repeatable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm imaging the Andromeda Galaxy (M31) all night with my refractor, how does the Steeldrive II help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs the temperature drops overnight, your refractor's tube will shrink, causing focus to drift. The Steeldrive II's included temperature sensor detects this change. The system then automatically adjusts the focuser in tiny increments to compensate, ensuring your stars remain pinpoints throughout the entire multi-hour exposure without you needing to manually refocus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a heavy camera and filter wheel on my SCT. Can the Steeldrive II Motor Unit handle the load?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Steeldrive II is built around a high-torque stepper motor specifically chosen for its ability to move heavy imaging payloads without slipping or stalling. It is designed to provide precise, reliable focusing even when the focuser is under significant load from cameras, filter wheels, and other accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eSteelGo Software (Download)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Output\u003c\/td\u003e\n\u003ctd\u003e12V\/1A PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity (kg)\u003c\/td\u003e\n\u003ctd\u003eup to 8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003eca. 0.7 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003eappr. 2.7 micrometer per step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelDrive_II_Motor_Unit_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelDrive II Motor Unit Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelDrive_II_Technical_Documentation.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelDrive II Technical Documentation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_SteelGo_II_Software_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium SteelGo II Software Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913217863965,"sku":"BAA-2957265","price":401.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-Steeldrive-II-Motor-Unit-1_31091dc0-cbdb-4e7d-9488-919a5454b473.jpg?v=1789088383"},{"product_id":"primalucelab-sestosenso3","title":"PrimaLuceLab SESTO SENSO 3 Robotic Focusing Motor","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdvanced robotic focusing motor for Crayford or rack-and-pinion focusers\u003c\/li\u003e\n\u003cli\u003eIntegrated position encoder allows manual adjustment without losing calibration\u003c\/li\u003e\n\u003cli\u003eSelf Centering Clamp 2 (SCC2) for direct, bracket-free installation\u003c\/li\u003e\n\u003cli\u003eDual connectivity with USB-C and built-in WiFi\u003c\/li\u003e\n\u003cli\u003eVirtual HandPad for wireless control from any smartphone or tablet\u003c\/li\u003e\n\u003cli\u003eFull integration with PLAY software, ASCOM drivers, and ARCO rotators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eSESTO SENSO 3 Robotic Focusing Motor\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab SESTO SENSO 3 is our most advanced robotic focusing motor, engineered to deliver exceptional precision for external focusers. It introduces an integrated position encoder that permits manual focuser adjustments without losing calibration, a Self Centering Clamp 2 (SCC2) for rapid installation without external brackets, and both USB-C and WiFi connectivity for complete control. You can operate the SESTO SENSO 3 from a computer via its ASCOM driver or PLAY software, or wirelessly from a smartphone using the Virtual HandPad.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eIntegrated Encoder: Manual Focusing Without Losing Calibration\u003c\/h3\u003e\n      \u003cp\u003eThe standout feature of the SESTO SENSO 3 is its integrated position encoder. This system precisely tracks the focuser shaft's movement, allowing you to make manual adjustments with the original focuser knob at any time without the motor losing its calibrated position. This is ideal for observers who switch between visual use and astrophotography.\u003c\/p\u003e\n      \u003cp\u003eFor added security, the Automatic Position Recovery function can be enabled. If the focuser is accidentally moved, this feature automatically returns it to the previous position after a user-defined delay, protecting your focus during public outreach events or unattended remote sessions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eFlexible Control: USB-C, WiFi, and Virtual HandPad\u003c\/h3\u003e\n      \u003cp\u003eThe SESTO SENSO 3 offers modern, reliable connectivity options for any workflow. A reversible USB-C port ensures a secure connection to any Windows computer or PrimaLuceLab EAGLE, minimizing the risk of accidental disconnection in the dark.\u003c\/p\u003e\n      \u003cp\u003eFor ultimate freedom, the built-in WiFi creates its own network, allowing you to connect directly with a smartphone or tablet. The browser-based Virtual HandPad gives you full control over focuser movement and presets, effectively turning your mobile device into a smart hand controller—no computer or cables required at the telescope.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSeamless Integration: SCC2 Clamp, ARCO Port, and PLAY Software\u003c\/h3\u003e\n      \u003cp\u003eInstallation is simplified with the new Self Centering Clamp 2 (SCC2), which attaches the SESTO SENSO 3 directly to a wide range of focusers without needing external brackets. The compact, all-in-one chassis houses all electronics and features dimmable LEDs that can be fully extinguished using DARK mode to eliminate stray light.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eARCO Ready:\u003c\/strong\u003e A dedicated port provides single-cable power and data for the optional ARCO robotic rotator, enabling a clean, fully integrated imaging train.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBroad Software Support:\u003c\/strong\u003e The included ASCOM driver ensures compatibility with popular third-party software like NINA, Sequence Generator Pro, and MaxIm DL.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePLAY Software:\u003c\/strong\u003e Unlock advanced features like automated focusing routines and temperature compensation (with optional probe) using PrimaLuceLab's dedicated PLAY astrophotography suite.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSESTO SENSO 3 vs. Predecessors: What's New?\u003c\/h3\u003e\n      \u003cp\u003eThe SESTO SENSO 3 represents a significant evolution in robotic focusing, moving beyond the capabilities of previous models. While older focus motors would lose their position if touched manually, the SESTO SENSO 3's integrated encoder solves this problem completely.\u003c\/p\u003e\n      \u003cp\u003eKey upgrades include the move to a bracketless mounting system with the SCC2 clamp and the introduction of modern USB-C and WiFi control. These features create a more robust, flexible, and user-friendly system for both remote imagers and hands-on visual observers.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the SESTO SENSO 3's integrated encoder?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe integrated encoder allows you to \u003cstrong\u003emanually turn the focuser knob\u003c\/strong\u003e at any time without the SESTO SENSO 3 losing its electronic position. This is a major advantage for users who switch between visual observing and imaging, as you can make coarse adjustments by hand and then switch to fine electronic control without needing to recalibrate.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the SESTO SENSO 3 without a computer at the telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The SESTO SENSO 3 has \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e that creates its own wireless network. You can connect to it with any smartphone or tablet and use the web-based \u003cstrong\u003eVirtual HandPad\u003c\/strong\u003e to move the focuser, save positions, and make precise adjustments without needing a connected PC.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SESTO SENSO 3 attach to my Crayford focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe SESTO SENSO 3 uses the included \u003cstrong\u003eSelf Centering Clamp 2 (SCC2)\u003c\/strong\u003e system. This allows it to connect directly to the focuser shaft of many popular Crayford and rack-and-pinion focusers without requiring any external, custom-made brackets, which simplifies installation significantly.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI use NINA for imaging. Is the SESTO SENSO 3 compatible?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The SESTO SENSO 3 includes a dedicated \u003cstrong\u003eASCOM driver\u003c\/strong\u003e. This ensures full compatibility with a wide range of third-party astrophotography software, including NINA, Sequence Generator Pro (SGP), MaxIm DL, and others that support the ASCOM standard.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy observatory has public viewing nights. How does the SESTO SENSO 3 handle accidental bumps to the focuser knob?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is a perfect use case for the \u003cstrong\u003eAutomatic Position Recovery\u003c\/strong\u003e feature. When enabled, if the SESTO SENSO 3 detects that the focuser has been moved manually (either intentionally or accidentally), it will automatically move the focuser back to its last commanded position, ensuring your target remains perfectly focused for the next person.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI want to build a fully remote imaging rig with a rotator. How does the SESTO SENSO 3 fit into this system?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe SESTO SENSO 3 is designed for this scenario. It features a dedicated \u003cstrong\u003eARCO port\u003c\/strong\u003e that allows you to connect a PrimaLuceLab ARCO rotator with a single cable for both power and data. This creates a clean, compact, and fully integrated system for focusing and framing that can be controlled remotely through the EAGLE or another computer running PLAY or ASCOM-compatible software.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_SESTO_SENSO_3_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913366073629,"sku":"PLL-SESTOSENSO3","price":391.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-SESTO-SENSO-3-robotic-focusing-motor-for-external-focusers-1_0a500a85-7874-4e56-910f-bb1d87665829.jpg?v=1789089939"},{"product_id":"primalucelab-sestosenso3sc","title":"PrimaLuceLab SESTO SENSO 3 SC Robotic Focusing Motor","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eRobotic focusing motor for SC, EdgeHD, and RASA telescopes\u003c\/li\u003e\n\u003cli\u003eDirect Pulley Clamp (DPC) for backlash-free, slip-free connection\u003c\/li\u003e\n\u003cli\u003eIntegrated encoder allows for manual focusing without losing position\u003c\/li\u003e\n\u003cli\u003eUSB-C port and built-in WiFi for dual control options\u003c\/li\u003e\n\u003cli\u003eASCOM and PLAY software compatible for full remote automation\u003c\/li\u003e\n\u003cli\u003eAutomatic calibration routine designed for internal mirror focusers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSESTO SENSO 3 SC Robotic Focusing Motor\u003c\/h2\u003e\n\u003cp\u003eThe SESTO SENSO 3 SC is an advanced robotic focusing motor engineered specifically for Schmidt-Cassegrain, EdgeHD, and RASA telescopes with internal mirror focusers. Its innovative Direct Pulley Clamp (DPC) system provides a backlash-free connection to the focus knob, while an integrated position encoder maintains perfect positional awareness even after manual adjustments. With both USB-C and built-in WiFi, you gain flexible, reliable remote focus control from a computer, smartphone, or tablet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Pulley Clamp (DPC): Backlash-Free Coupling with Manual Override\u003c\/h3\u003e\n\u003cp\u003eThe core of the SESTO SENSO 3 SC is its Direct Pulley Clamp (DPC) mechanism. This system provides a secure, slip-free connection to your telescope's focuser knob, eliminating the backlash common in other motor designs. This ensures that every command from the software translates into precise, repeatable mirror movement.\u003c\/p\u003e\n\u003cp\u003eCrucially, the DPC works in concert with an integrated position encoder. This allows you to manually turn the focus knob at any time—for quick visual adjustments or switching eyepieces—without the system losing its calibrated position. The SESTO SENSO 3 SC always knows where it is, giving you the freedom of manual control with the repeatability of robotic automation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual Control: USB-C and WiFi with Virtual HandPad\u003c\/h3\u003e\n\u003cp\u003eThe SESTO SENSO 3 SC offers two robust methods for control. A modern USB-C port provides a secure, reliable cabled connection to any Windows computer or PrimaLuceLab EAGLE unit, preventing accidental disconnections during an imaging run. This is the ideal connection for a permanent observatory or a complex portable setup.\u003c\/p\u003e\n\u003cp\u003eFor wireless freedom, the focuser has built-in WiFi, creating its own network. You can connect directly with a smartphone or tablet and use the web-based Virtual HandPad to make focus adjustments right at the telescope. This is perfect for initial setup, visual observing, or when you don't want to be tethered to a laptop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSC-Specific Automation: Remote Calibration and Position Recovery\u003c\/h3\u003e\n\u003cp\u003eUnlike external focusers, internal mirror focus systems lack hard mechanical stops, making remote calibration a major challenge. The SESTO SENSO 3 SC solves this with an exclusive Automatic Calibration mode that intelligently detects the focuser's full travel range without manual intervention. This makes it a uniquely reliable solution for unattended, remote observatories.\u003c\/p\u003e\n\u003cp\u003eFor added security, an Automatic Position Recovery function can be enabled. If the focus knob is accidentally moved, the system will automatically return to its last known position after a user-defined delay. This feature is invaluable in public observatories or educational settings where multiple users might handle the equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Ecosystem Integration: ARCO, EAGLE, and ASCOM Control\u003c\/h3\u003e\n\u003cp\u003eThe SESTO SENSO 3 SC is designed to be the hub of your imaging train. A dedicated ARCO port allows you to connect a PrimaLuceLab ARCO rotator with a single cable for both power and data, dramatically simplifying cable management. When paired with an EAGLE computer, you can enable GHOST mode for wireless control from your PC and DARK mode to automatically extinguish all status LEDs during an exposure.\u003c\/p\u003e\n\u003cp\u003eBeyond the PrimaLuceLab ecosystem, the focuser is fully ASCOM compliant. This ensures out-of-the-box compatibility with all major astrophotography software, including NINA, Sequence Generator Pro, and MaxIm DL, allowing you to integrate it into your existing workflow without compromise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSESTO SENSO 3 SC vs. Standard Models: Why Automatic Calibration Matters\u003c\/h3\u003e\n\u003cp\u003eWhile other SESTO SENSO 3 models provide exceptional focusing, the SC version contains a key feature that makes it essential for telescopes with internal focusers. The Automatic Calibration routine is what sets it apart, as it is purpose-built to handle the unique mechanics of a moving-mirror system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Focusers:\u003c\/strong\u003e Have a defined, limited travel range with hard stops, making them easy to calibrate manually.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSC\/EdgeHD\/RASA Focusers:\u003c\/strong\u003e The primary mirror can be moved over a very long range with no fixed endpoints. Manually finding these limits is impractical, and impossible to do remotely. The SESTO SENSO 3 SC automates this discovery process, a feature not available on other models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the SESTO SENSO 3 SC different from other robotic focusers for SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SESTO SENSO 3 SC's key differentiators are its \u003cstrong\u003eDirect Pulley Clamp (DPC)\u003c\/strong\u003e for a backlash-free connection and its \u003cstrong\u003eintegrated encoder\u003c\/strong\u003e. This combination allows you to make manual focus adjustments at any time without the system losing its position, a feature missing from many competing focus motors. Furthermore, its exclusive automatic calibration routine is designed specifically for the challenges of internal mirror focusing systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still manually focus my Celestron EdgeHD 8 with the SESTO SENSO 3 SC installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The DPC system is designed to allow full manual control. You can turn the focuser knob by hand whenever you need to, and the integrated encoder will track the movement. The system will instantly know the new focus position without needing to be re-calibrated, making it seamless to switch between imaging and visual use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SESTO SENSO 3 SC handle remote operation in an observatory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is built for remote use. The \u003cstrong\u003eAutomatic Calibration\u003c\/strong\u003e feature allows the focuser to learn the travel limits of your telescope's mirror without you needing to be there. Control can be handled reliably over a wired USB-C connection to an observatory computer, and the ASCOM driver allows it to be integrated into any remote automation software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the SESTO SENSO 3 SC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SESTO SENSO 3 SC works with PrimaLuceLab's own \u003cstrong\u003ePLAY\u003c\/strong\u003e software for an integrated experience, especially when using an EAGLE computer. It is also fully \u003cstrong\u003eASCOM compliant\u003c\/strong\u003e, meaning it works with virtually all popular third-party astrophotography applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNINA\u003c\/li\u003e\n\u003cli\u003eSequence Generator Pro (SGP)\u003c\/li\u003e\n\u003cli\u003eMaxIm DL\u003c\/li\u003e\n\u003cli\u003eand others that support the ASCOM focusing standard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need an EAGLE computer to use the SESTO SENSO 3 SC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. An EAGLE is not required. You can connect the SESTO SENSO 3 SC directly to any Windows 10\/11 computer via its USB-C port. You can also control it completely wirelessly using its built-in WiFi and the Virtual HandPad on any smartphone or tablet. However, an EAGLE computer unlocks advanced features like GHOST mode (wireless control from the EAGLE) and automatic DARK mode activation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SESTO SENSO 3 SC integrate with the ARCO rotator on my RASA 11?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIntegration is incredibly simple. The SESTO SENSO 3 SC has a dedicated ARCO port. You connect the ARCO rotator to this port using a single, short cable that provides both power and data. This eliminates extra cables running to your computer, streamlining your imaging train and reducing the potential for cable snags.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_SESTO_SENSO_3_SC_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913366139165,"sku":"PLL-SESTOSENSO3SC","price":419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-SESTO-SENSO-3-SC-robotic-focusing-motor-for-SC-type-telescopes-1_0648aa3e-242f-47d8-a6ca-4a7134488fcf.jpg?v=1789089948"},{"product_id":"primalucelab-sestosenso3ls","title":"PrimaLuceLab SESTO SENSO 3 LS Robotic Focusing Motor for Telephoto Lenses","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eRobotic focusing motor designed for telephoto lenses\u003c\/li\u003e\n\u003cli\u003eLens Gear Clamp (LGC) for direct, backlash-free connection\u003c\/li\u003e\n\u003cli\u003eIntegrated position encoder allows manual override without losing focus position\u003c\/li\u003e\n\u003cli\u003eUSB-C and built-in WiFi for wired or wireless control\u003c\/li\u003e\n\u003cli\u003eArca-Swiss style mount for secure attachment to PLUS system dovetails\u003c\/li\u003e\n\u003cli\u003eFull integration with PrimaLuceLab PLAY software and ARCO rotator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSESTO SENSO 3 LS Robotic Focusing Motor for Telephoto Lenses\u003c\/h2\u003e\n\u003cp\u003eThe SESTO SENSO 3 LS is a dedicated robotic focusing motor engineered to bring high-precision, automated focusing to astrophotography with telephoto lenses from Canon, Nikon, and others. It integrates its motor, high-resolution encoder, and control electronics into a single, compact unit that connects directly to your lens's focus ring via the innovative Lens Gear Clamp (LGC) system, providing backlash-free adjustments. With both USB-C and built-in WiFi connectivity, you can control focus from a computer or wirelessly from a smartphone, fully integrating your camera lens into a modern astrophotography workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLGC System: Precision, Backlash-Free Focusing for Telephoto Lenses\u003c\/h3\u003e\n\u003cp\u003eUnlike universal motors that rely on external belts, the SESTO SENSO 3 LS uses the new Lens Gear Clamp (LGC) system. This custom mechanical interface engages the lens's manual focus ring with a direct-drive rubber gear, eliminating the slip and backlash common with belt-driven systems. This ensures that every command from the control software translates into precise, repeatable focus adjustments critical for sharp stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Encoder: Manual Override with Automatic Position Recovery\u003c\/h3\u003e\n\u003cp\u003eA key innovation in the SESTO SENSO 3 LS is its integrated position encoder. This allows you to manually turn the lens's focus ring at any time—even while the motor is powered on—without losing the system's focus position. The focuser instantly knows its new position, enabling seamless transitions between manual tweaks and automated control. The system also features an Automatic Position Recovery function, which can be configured to return the lens to its last commanded position if it's accidentally moved, safeguarding your focus during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWireless \u0026amp; Wired Control: USB-C, WiFi, and PLAY Software Integration\u003c\/h3\u003e\n\u003cp\u003eThe SESTO SENSO 3 LS offers flexible control options to suit any imaging setup. Connect it to an EAGLE control unit or any Windows computer via the modern USB-C port for robust, hardwired control. For a cable-free setup, use the built-in WiFi to connect to the Virtual HandPad on a smartphone or tablet. The motor is fully compatible with PrimaLuceLab's PLAY astrophotography suite, supports ASCOM drivers for third-party software, and features a dedicated ARCO port for single-cable power and control of the ARCO robotic rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRig Integration: Compact All-in-One Design with Arca-Swiss Mounting\u003c\/h3\u003e\n\u003cp\u003eDesigned as a self-contained unit, the SESTO SENSO 3 LS houses all its electronics within a single lightweight chassis, minimizing cable clutter. An integrated Arca-Swiss style foot allows for direct and secure mounting to any PLUS Vixen-style dovetail bar. For dark sky imaging, the status LEDs are dimmable and can be turned off completely to prevent any stray light from affecting your exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSESTO SENSO 3 LS vs. SESTO SENSO 3: Choosing the Right Focuser\u003c\/h3\u003e\n\u003cp\u003eWhile both motors share core technology, their applications are distinct. The standard SESTO SENSO 3 is designed for telescopes, using bushings and couplings to attach to the pinion shafts of traditional Crayford or SCT focusers. The SESTO SENSO 3 LS is engineered exclusively for photographic telephoto lenses, using its unique LGC system to interface directly with the lens's focusing ring. If you are imaging with a telescope, choose the SESTO SENSO 3; for a telephoto lens, the SESTO SENSO 3 LS is the correct tool for the job.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the SESTO SENSO 3 LS different from the standard SESTO SENSO 3?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is the mechanical interface. The \u003cstrong\u003eSESTO SENSO 3 LS\u003c\/strong\u003e is designed specifically for photographic telephoto lenses and uses the \u003cstrong\u003eLens Gear Clamp (LGC)\u003c\/strong\u003e to directly drive the lens's focus ring. The standard SESTO SENSO 3 is for telescopes and connects to the focuser's pinion shaft using various-sized bushings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still focus my lens manually with the SESTO SENSO 3 LS attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Thanks to the integrated high-resolution encoder, you can turn your lens's focus ring by hand at any time. The SESTO SENSO 3 LS will track the movement and update its position in the software, allowing you to switch between manual and automated focusing without needing to recalibrate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the \"Automatic Position Recovery\" feature on the SESTO SENSO 3 LS?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis feature uses the encoder to protect your focus. If the lens focus ring is moved manually or accidentally bumped, the motor can automatically return it to the last commanded position. You can set a delay for this recovery, from an instant reaction to a longer pause, giving you full control over the behavior.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Lens Gear Clamp (LGC) on the SESTO SENSO 3 LS work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe LGC is a gear-based system that clamps around the barrel of your telephoto lens. An integrated rubber gear makes direct, firm contact with the manual focus ring. This eliminates the need for external belts and prevents the mechanical slip and backlash that can ruin focus precision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I integrate the SESTO SENSO 3 LS into a portable setup with a Canon 400mm lens and an EAGLE computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIntegration is straightforward. You would mount your Canon lens and camera to a PLUS Vixen-style dovetail bar. The SESTO SENSO 3 LS attaches to the same bar via its Arca-Swiss foot and is positioned so the LGC engages the lens's focus ring. You would then connect the SESTO SENSO 3 LS to your EAGLE using a single USB-C cable for power and data, allowing for full control through the PLAY software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the SESTO SENSO 3 LS compensate for temperature changes when imaging the Andromeda Galaxy (M31) with my lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is equipped for this. The SESTO SENSO 3 LS includes a dedicated port for an optional temperature probe. When connected, and used with third-party software that supports it (like SGP or N.I.N.A.), you can configure automatic focusing routines that trigger when the ambient temperature changes by a set amount, ensuring M31's details remain perfectly sharp throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_SESTO_SENSO_3_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913366958365,"sku":"PLL-SESTOSENSO3LS","price":489.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-SESTO-SENSO-3-LS-robotic-focusing-motor-for-telephoto-lenses-1_0603f9d5-0cde-425a-8180-9edc83694dca.jpg?v=1789089956"},{"product_id":"primalucelab-pllest2arco2","title":"PrimaLuceLab ESATTO 2\" Focuser with ARCO 2\" Rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCombines robotic focuser and high-precision rotator in one unit\u003c\/li\u003e\n\u003cli\u003eLow-profile design for minimal back focus consumption\u003c\/li\u003e\n\u003cli\u003eSingle-cable connection between units for simplified wiring\u003c\/li\u003e\n\u003cli\u003eASCOM and native PLAY software compatible for flexible control\u003c\/li\u003e\n\u003cli\u003eFunctions as a camera rotator for framing and a field de-rotator for alt-az mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eESATTO 2\" Focuser with ARCO 2\" Rotator\u003c\/h2\u003e\n\u003cp\u003eThis bundle combines the PrimaLuceLab ESATTO 2\" robotic focuser and the ARCO 2\" rotator into a single, compact unit for complete remote control of your imaging train. Engineered to work together seamlessly, this system provides both high-precision focusing and arc-second resolution rotation without the cable management complexity of separate components. The integrated design simplifies your setup, requiring only a single USB cable to the ESATTO for control and power, making it a streamlined solution for automated astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Focus and Rotation: The ESATTO and ARCO System\u003c\/h3\u003e\n\u003cp\u003eBy including the necessary adapter, this bundle creates a rigid, low-profile focusing and rotation assembly. This integration is designed to minimize the back focus used in your optical train while providing the robust support needed for modern imaging cameras. The two devices communicate through a short link cable, meaning you only need to connect the ESATTO focuser to your EAGLE or Windows computer to command both focus and rotation, dramatically simplifying cable routing at the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRobotic Focusing Control with the ESATTO 2\"\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 2\" is a new-generation robotic focuser with an integrated motor and advanced electronics, eliminating the need for an external controller. It offers exceptional load capacity and precise draw tube travel, ensuring no slippage even with heavy camera and filter wheel combinations. You can control the ESATTO directly via USB or wirelessly using the Virtual HandPad on a smartphone or tablet, giving you flexible and reliable remote focusing for any setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eArc-Second Precision with the ARCO 2\" Camera Rotator\u003c\/h3\u003e\n\u003cp\u003eThe ARCO 2\" rotator delivers incredible rotational accuracy, with a resolution of one arc-second per step. This level of precision makes it a superior tool for both perfectly framing your deep-sky targets and for acting as a field de-rotator when used with an alt-azimuth mount. Its slim profile adds minimal thickness to the imaging train, preserving precious back focus for other accessories like off-axis guiders or filter wheels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnified Telescope Control with ASCOM and PLAY Software\u003c\/h3\u003e\n\u003cp\u003eFlexibility in control is central to the ESATTO and ARCO system. Both devices include ASCOM drivers, ensuring full compatibility with third-party astrophotography software for Windows, such as N.I.N.A., Sequence Generator Pro, or Maxim DL. For an even more integrated experience, you can use PrimaLuceLab's PLAY software, which is designed to control all their devices, along with your camera and mount, from a single, intuitive interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the ESATTO 2\" and ARCO 2\" bundle over separate components?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is \u003cstrong\u003eseamless integration and simplified cabling\u003c\/strong\u003e. The ESATTO and ARCO are designed to work as a single unit, requiring only one USB and power connection to the ESATTO focuser, which then controls and powers the ARCO rotator. This reduces cable clutter and potential snag points at the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the ESATTO 2\" and ARCO 2\" with software like N.I.N.A. or Sequence Generator Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. PrimaLuceLab provides \u003cstrong\u003eASCOM drivers\u003c\/strong\u003e for both the ESATTO focuser and ARCO rotator. This allows you to control them using any Windows-based astrophotography software that supports the ASCOM standard for focusers and rotators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ARCO 2\" rotator work as a field de-rotator with the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen used with a telescope on an \u003cstrong\u003ealt-azimuth mount\u003c\/strong\u003e, the sky appears to rotate in the eyepiece over time. The ARCO 2\" can be commanded by software to precisely counter-rotate the camera at the sidereal rate, effectively freezing the field of view. This allows for long-exposure astrophotography without star trailing, a task typically reserved for equatorial mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the PLAY software and how does it control the ESATTO and ARCO system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003ePLAY is PrimaLuceLab's proprietary astrophotography software\u003c\/strong\u003e designed to create a unified ecosystem for all their hardware. It allows you to control the ESATTO focuser, ARCO rotator, cameras, and mounts from a single application, simplifying the process of setting up and executing an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I use the ESATTO and ARCO bundle with my Celestron SCT for EAA, how does the de-rotation feature help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMany Celestron SCTs are on alt-azimuth mounts, which are convenient for visual use but introduce field rotation during exposures. For Electronically Assisted Astronomy (EAA), where you stack many short exposures, this rotation will blur the edges of the image. The ARCO's de-rotation function corrects for this, allowing you to create sharper, longer-duration stacked images of objects like the Hercules Cluster (M13).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to image the Rosette Nebula (NGC 2244) and get the perfect framing. How does the ARCO rotator in this bundle help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Rosette Nebula is a large object that often requires precise composition to fit well within the camera's field of view. The ARCO rotator allows you to make fine, remote adjustments to the camera's orientation without physically touching the telescope. You can dial in the exact angle needed to perfectly frame the nebula and its associated star cluster, ensuring a professional-looking final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913367777565,"sku":"PLLEST2ARCO2","price":1987.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-ESATTO-2-focuser-with-ARCO-2-rotator-1_c178e268-9b07-488b-ab4c-43a4efddd90c.jpg?v=1789089964"},{"product_id":"primalucelab-pllest2lp","title":"PrimaLuceLab ESATTO 2\" LP Low Profile Robotic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e32mm low-profile thickness\u003c\/li\u003e\n\u003cli\u003e50.9mm clear aperture\u003c\/li\u003e\n\u003cli\u003e10mm of precise focuser travel\u003c\/li\u003e\n\u003cli\u003e0.03 microns per step resolution\u003c\/li\u003e\n\u003cli\u003e5kg payload capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eESATTO 2\" LP Low Profile Robotic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 2\" LP robotic focuser delivers automated, high-precision focusing in an ultra-slim 32mm body, making it essential for optical systems with limited back-focus. It supports a 5kg imaging payload through a generous 50.9mm clear aperture, all while weighing only 730g. With 10mm of precise travel and a resolution of 0.03 microns per step, you can achieve critical focus remotely for sharp, high-resolution images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUltra-Slim 32mm Profile for Back-Focus Critical Telescopes\u003c\/h3\u003e\n\u003cp\u003eMany modern telescopes, particularly Schmidt-Cassegrains with reducers like the Celestron EdgeHD 8\", have very little back-focus to accommodate a full imaging train. The ESATTO 2\" LP directly solves this problem with its minimal 32mm optical thickness, allowing you to fit a filter wheel and off-axis guider where a standard focuser would be too long. Despite its slim design, the focuser provides a large 50.9mm clear aperture, ensuring no vignetting even with full-frame sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.03 Micron Resolution with WiFi and USB-C Control\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect focus on a high-resolution sensor requires incredibly fine adjustments. The ESATTO 2\" LP's motor provides a repeatable step resolution of just 0.03 microns, eliminating backlash and ensuring you can dial in the sharpest possible stars. You control the focuser remotely via a modern USB-C port or built-in WiFi, connecting directly to PrimaLuceLab's PLAY astrophotography software or standard ASCOM-compliant applications. The short 10mm travel range is a direct trade-off for the compact design, optimized for fine-tuning rather than coarse adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5kg Payload Capacity and ARCO Rotator Compatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered to prevent tilt and flexure, the ESATTO 2\" LP supports a robust 5kg imaging payload. This is more than enough capacity to handle a cooled astronomy camera, a filter wheel, and an off-axis guider without compromising mechanical stability. For a fully automated imaging rig, the focuser integrates seamlessly with the PrimaLuceLab ARCO robotic rotator, creating a rigid, remotely controlled system for both focusing and field framing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the ESATTO 2\" LP essential for a Celestron EdgeHD 8\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron EdgeHD 8\", especially with its 0.7x reducer, has a very strict back-focus requirement. The ESATTO 2\" LP's ultra-slim \u003cstrong\u003e32mm profile\u003c\/strong\u003e is one of the few robotic focusers that can fit within this limited distance while still allowing room for other essential accessories like a filter wheel or off-axis guider.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 10mm travel of the ESATTO 2\" LP enough for my setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e10mm travel distance\u003c\/strong\u003e is designed for fine focusing after coarse focus has been set with the telescope's primary focuser. It's ideal for automatic temperature compensation and achieving critical sharpness with software, but not for large initial focus adjustments. This is a deliberate design trade-off for its low-profile form factor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the ESATTO 2\" LP handle a heavy imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ESATTO 2\" LP has a \u003cstrong\u003epayload capacity of 5kg\u003c\/strong\u003e (11 lbs), which is sufficient for most modern imaging setups. It can reliably support a cooled CMOS or CCD camera, a 2\" filter wheel, and an off-axis guider without introducing flexure or tilt into the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I control the ESATTO 2\" LP focuser remotely?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the ESATTO 2\" LP in multiple ways:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C:\u003c\/strong\u003e Connect directly to a PC or EAGLE control unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi:\u003c\/strong\u003e Connect wirelessly from your smartphone, tablet, or computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware:\u003c\/strong\u003e It is fully compatible with PrimaLuceLab's \u003cstrong\u003ePLAY\u003c\/strong\u003e software and supports standard \u003cstrong\u003eASCOM drivers\u003c\/strong\u003e for use with third-party software like N.I.N.A. or Sequence Generator Pro.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ESATTO 2\" LP cause vignetting on my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe focuser features a large \u003cstrong\u003e50.9mm clear aperture\u003c\/strong\u003e, which is designed to fully illuminate sensors up to full-frame (43mm diagonal) without vignetting. This ensures your flat frames can correct for an evenly illuminated field, provided the rest of your optical train is also full-frame compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need special adapters to connect the ESATTO 2\" LP to my telescope and camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ESATTO 2\" LP requires optional adapters for both the telescope and camera sides to ensure a secure, threaded connection. PrimaLuceLab offers a wide range of adapters for different telescope thread types (like SCT thread) and camera connections (like M48 or M54), which must be purchased separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile Thickness\u003c\/td\u003e\n\u003ctd\u003e32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e50.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Travel\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Resolution\u003c\/td\u003e\n\u003ctd\u003e0.03 microns per step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e730g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913369514269,"sku":"PLLEST2LP","price":1225.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"primalucelab-pllest2lparco2","title":"PrimaLuceLab ESATTO 2\" LP Focuser with ARCO 2\" Rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCombines ESATTO 2\" LP robotic focuser and ARCO 2\" robotic rotator\u003c\/li\u003e\n\u003cli\u003eLow-profile design for compact imaging trains\u003c\/li\u003e\n\u003cli\u003eUnified power and data connection through the ESATTO focuser\u003c\/li\u003e\n\u003cli\u003eASCOM drivers for compatibility with third-party Windows software\u003c\/li\u003e\n\u003cli\u003eNative control via PrimaLuceLab's PLAY astrophotography software\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eESATTO 2\" LP Focuser with ARCO 2\" Rotator\u003c\/h2\u003e\n\u003cp\u003eThis bundle integrates the PrimaLuceLab ESATTO 2\" LP focuser and the ARCO 2\" rotator into a single, compact unit for complete remote control over your imaging train. Engineered to work together seamlessly, this system provides precise, robotic focusing and field rotation while dramatically simplifying cable management. It replaces two separate devices and their corresponding cables with one low-profile assembly, reducing potential snags and setup complexity for automated astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnified Focus and Rotation: The ESATTO 2\" LP and ARCO 2\" System\u003c\/h3\u003e\n\u003cp\u003eBy combining the ESATTO 2\" LP focuser with the ARCO 2\" rotator, this package delivers two critical imaging functions in a tightly integrated form factor. The ESATTO provides the precise, repeatable focus adjustments necessary for sharp stars, while the ARCO allows you to frame your target perfectly or act as a field de-rotator for alt-azimuth mounts. Because they are designed as a system, you gain these capabilities without the bulk and connection headaches of separate components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSimplified Cabling for Snag-Free Remote Imaging\u003c\/h3\u003e\n\u003cp\u003eOne of the most significant challenges in a remote imaging setup is cable drag and the risk of snags during a long exposure sequence. This bundle solves that problem with a unified connection design. A single USB cable runs from your control computer to the ESATTO focuser, which then powers and controls the ARCO rotator via a short, included link cable. This eliminates the need for separate power and data lines for the rotator, creating a cleaner, more reliable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Control with PLAY and ASCOM Drivers\u003c\/h3\u003e\n\u003cp\u003eYou have complete flexibility in how you control the ESATTO and ARCO system. Standard ASCOM drivers ensure full compatibility with a wide range of popular Windows-based astrophotography software. For users invested in the PrimaLuceLab ecosystem, the native PLAY software offers a streamlined, all-in-one control interface. PLAY allows you to manage the focuser, rotator, and other connected devices like the EAGLE computer from a single, intuitive application designed for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software can I use to control the ESATTO 2\" LP and ARCO 2\" bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the ESATTO 2\" LP and ARCO 2\" using any Windows-based astrophotography software that supports \u003cstrong\u003eASCOM focusers and rotators\u003c\/strong\u003e. For a more integrated experience, you can use PrimaLuceLab's proprietary \u003cstrong\u003ePLAY software\u003c\/strong\u003e, which is designed to control their entire line of products from a single application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the ESATTO 2\" LP focuser and ARCO 2\" rotator connect to my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe system is designed for minimal cable clutter. You only need to connect \u003cstrong\u003eone USB cable\u003c\/strong\u003e from your computer to the ESATTO 2\" LP focuser. The ARCO 2\" rotator then connects directly to the ESATTO with a short link cable, receiving both power and data through the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need separate power supplies for the ESATTO 2\" LP and ARCO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The ARCO rotator is powered directly by the ESATTO focuser. The ESATTO itself can often draw sufficient power from a high-current USB port. A separate 12V power supply for the ESATTO is only required if your computer's USB port cannot provide enough current.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ARCO 2\" rotator for field de-rotation on my Celestron CPC alt-az mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ARCO 2\" rotator is designed to function as both a camera angle adjuster for equatorial mounts and a \u003cstrong\u003efield de-rotator\u003c\/strong\u003e for alt-azimuth mounts. When properly configured with compatible software, it can counteract the field rotation inherent in alt-az tracking, enabling long-exposure deep-sky imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ESATTO 2\" LP and ARCO 2\" bundle attach to a large Celestron EdgeHD 1100 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo attach this bundle to larger Celestron SCT and EdgeHD telescopes like the 11-inch or 14-inch models, you will need a specific adapter. PrimaLuceLab offers adapters that connect the focuser to the large 3.3\" threaded port on the rear cell of these telescopes, ensuring a secure, rigid connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of getting the ESATTO 2\" LP and ARCO 2\" as a bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is \u003cstrong\u003eintegration\u003c\/strong\u003e. The focuser and rotator are designed to work as a single unit, which results in a more compact physical profile and drastically simplified power and data cabling. This reduces setup time, weight, and the potential for cable snags during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913369547037,"sku":"PLLEST2LPARCO2","price":2331.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-ESATTO-2-LP-focuser-with-ARCO-2-rotator-1_e5283a95-0e40-49f5-96be-64cc27b2a942.jpg?v=1789089978"},{"product_id":"primalucelab-pllest3arco3","title":"PrimaLuceLab ESATTO 3\" Focuser with ARCO 3\" Rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIntegrated 3\" Robotic Focuser and Rotator Bundle\u003c\/li\u003e\n\u003cli\u003e76.3mm Clear Aperture Through Entire Optical Path\u003c\/li\u003e\n\u003cli\u003e86.5mm Combined Thickness\u003c\/li\u003e\n\u003cli\u003eESATTO Focuser: 8kg Payload Capacity \u0026amp; 0.04 Micron Step Resolution\u003c\/li\u003e\n\u003cli\u003eARCO Rotator: 1 Arcsecond Step Resolution\u003c\/li\u003e\n\u003cli\u003eSingle USB Cable Control via ESATTO Port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eESATTO 3\" Focuser with ARCO 3\" Rotator\u003c\/h2\u003e\n\u003cp\u003eThis bundle combines the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator into a single, remotely controlled unit with a total thickness of just 86.5mm and a large 76.3mm free aperture. The ESATTO provides an 8kg payload capacity with an incredible 0.04 micron per step resolution, while the ARCO rotator delivers 1 arc second per step precision for perfect framing and field de-rotation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eESATTO 3\" Focuser: 8kg Payload and 0.04 Micron Precision\u003c\/h3\u003e\n\u003cp\u003eThe core of this system is the ESATTO 3\" robotic focuser, engineered to handle heavy, professional-grade imaging trains. Its 8kg payload capacity easily supports large format cameras, filter wheels, and off-axis guiders without flexure. With 25mm of draw tube travel and an outstanding resolution of 0.04 microns per step, you can achieve critical focus on high-resolution targets with any apochromatic refractor or Ritchey-Chrétien telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eARCO 3\" Rotator: 1 Arcsecond Resolution for Framing and De-rotation\u003c\/h3\u003e\n\u003cp\u003eThe ARCO 3\" rotator provides exceptionally precise control over your camera's orientation. With a resolution of 1 arc second per step, it allows you to perfectly frame celestial objects or align with guide stars. When used with an equatorial mount, ARCO acts as a high-precision camera rotator; on an alt-azimuth mount, it functions as a field de-rotator, compensating for field rotation during long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Design: A Compact 86.5mm Profile with a Single USB Cable\u003c\/h3\u003e\n\u003cp\u003ePrimaLuceLab designed the ESATTO and ARCO to function as a single device. This bundle includes the necessary adapter to join them into a rigid unit that is only 86.5mm thick, preserving precious back focus. The entire system maintains a 76.3mm clear aperture, preventing vignetting with large sensors. Most importantly, a single short cable connects ARCO to ESATTO, which then connects to your computer via one USB cable, dramatically reducing cable clutter and potential snags.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnified Control: Full Remote Operation with PLAY and ASCOM\u003c\/h3\u003e\n\u003cp\u003eTake complete remote control of your imaging setup through a single software interface. The ESATTO 3\" and ARCO 3\" bundle is fully supported by ASCOM drivers, ensuring compatibility with virtually any Windows-based astrophotography software. For an even more streamlined experience, PrimaLuceLab's PLAY software provides native control, allowing you to manage focusing, rotation, and image capture from one intuitive platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the ESATTO 3\" and ARCO 3\" connect and get power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe two units are designed for integrated operation. The ARCO rotator connects directly to a dedicated port on the ESATTO focuser with a short cable. The ESATTO then connects to your control computer with a single USB cable. This one cable handles data for both devices and often provides enough power. An external \u003cstrong\u003e12V power supply\u003c\/strong\u003e may be needed only if your computer's USB port cannot supply sufficient current.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total back focus consumed by the ESATTO 3\" and ARCO 3\" bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe combined thickness of the ESATTO 3\" focuser, the ARCO 3\" rotator, and the connecting adapter is \u003cstrong\u003e86.5mm\u003c\/strong\u003e. This is the total amount of back focus required by the integrated unit in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the ESATTO 3\" focuser handle a heavy imaging train on my Ritchey-Chrétien telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ESATTO 3\" is specifically designed for this purpose. With a robust \u003cstrong\u003epayload capacity of 8kg\u003c\/strong\u003e, it can securely hold and precisely focus a full imaging setup, including a large format camera, a heavy filter wheel, and an off-axis guider, without introducing sag or flexure into the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow precise is the ARCO 3\" rotator for framing a target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ARCO 3\" is exceptionally precise. It offers a rotational resolution of \u003cstrong\u003e1 arc second per step\u003c\/strong\u003e. This level of accuracy allows you to make minute adjustments to your camera's orientation, ensuring you can perfectly frame large targets like the Andromeda Galaxy (M31) or precisely align with a specific guide star for autoguiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to control the ESATTO 3\" and ARCO 3\" bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou have two main options. The bundle comes with \u003cstrong\u003eASCOM drivers\u003c\/strong\u003e, allowing you to control both the focuser and rotator from any ASCOM-compliant astrophotography software on Windows (such as N.I.N.A. or Sequence Generator Pro). Alternatively, you can use PrimaLuceLab's own \u003cstrong\u003ePLAY software\u003c\/strong\u003e for a deeply integrated, all-in-one control experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ARCO 3\" as a field de-rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ARCO 3\" is designed to function as both a camera rotator and a field de-rotator. Its role depends on your mount type. With an equatorial mount, you use it to frame your target. With an alt-azimuth mount, it can be controlled by software to actively counteract field rotation, enabling long-exposure deep-sky astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Bundle\u003c\/td\u003e\n\u003ctd\u003eESATTO 3\" Focuser \u0026amp; ARCO 3\" Rotator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined Thickness\u003c\/td\u003e\n\u003ctd\u003e86.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree Aperture\u003c\/td\u003e\n\u003ctd\u003e76.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" class=\"DAV-spec-header\"\u003eESATTO 3\" Focuser\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e8kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDraw Tube Travel\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution (per step)\u003c\/td\u003e\n\u003ctd\u003e0.04 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" class=\"DAV-spec-header\"\u003eARCO 3\" Rotator\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotator Thickness\u003c\/td\u003e\n\u003ctd\u003e23mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution (per step)\u003c\/td\u003e\n\u003ctd\u003e1 arc second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" class=\"DAV-spec-header\"\u003eConnectivity \u0026amp; Software\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Interface\u003c\/td\u003e\n\u003ctd\u003eUSB (to ESATTO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Compatibility\u003c\/td\u003e\n\u003ctd\u003eASCOM, PrimaLuceLab PLAY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e12V DC (if USB power is insufficient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913369612573,"sku":"PLLEST3ARCO3","price":3269.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-ESATTO-3-focuser-with-ARCO-3-rotator-1_d41c1d01-f347-4f36-a32e-e1ab17990de1.jpg?v=1789089985"},{"product_id":"primalucelab-pllest35lparco3","title":"PrimaLuceLab ESATTO 3,5\" LP Focuser with ARCO 3\" Rotator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCombined ESATTO 3,5\" Focuser and ARCO 3\" Rotator\u003c\/li\u003e\n\u003cli\u003eLow-Profile Design for Complex Imaging Trains\u003c\/li\u003e\n\u003cli\u003eIntegrated Power and Data Reduces Cable Drag\u003c\/li\u003e\n\u003cli\u003eFunctions as Both Camera and Field Rotator\u003c\/li\u003e\n\u003cli\u003eIncludes Native PLAY and Universal ASCOM Software Support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eESATTO 3,5\" LP Focuser with ARCO 3\" Rotator\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ESATTO 3,5\" LP focuser and ARCO 3\" rotator bundle provides integrated, remote control over both critical imaging axes in a single, compact unit. This package combines the low-profile ESATTO 3,5\" robotic focuser with the versatile ARCO 3\" rotator, simplifying cable management down to a single USB connection for both devices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Focus and Rotation: A Single-Cable Solution\u003c\/h3\u003e\n\u003cp\u003eThis bundle is engineered for seamless integration. The ESATTO focuser and ARCO rotator connect to each other with a short power and data cable, meaning you only need to run a single USB cable from your control computer to the ESATTO. This design drastically reduces cable drag and potential snags—a critical factor for reliable, automated imaging sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe ESATTO 3,5\" LP: Robotic Low-Profile Focusing\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3,5\" LP is a robotic focuser designed for demanding astrophotography where backfocus is limited. Its low-profile body allows you to add precise, repeatable focusing to complex imaging trains that include off-axis guiders, filter wheels, and large-format cameras. The all-digital operation ensures you can achieve and maintain critical focus remotely without touching the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eARCO 3\" Rotator: Precision Framing and De-Rotation\u003c\/h3\u003e\n\u003cp\u003eThe ARCO 3\" rotator serves two essential roles for the advanced imager. As a camera rotator, it allows you to precisely frame your target without physically loosening your camera. For users with alt-azimuth mounts, it functions as a field de-rotator, actively counteracting the field rotation that occurs during long exposures, enabling you to capture sharp, round stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnified Control with PLAY and ASCOM\u003c\/h3\u003e\n\u003cp\u003eYou can control the ESATTO 3,5\" LP and ARCO 3\" bundle through two powerful software pathways. PrimaLuceLab's PLAY software offers a native, all-in-one environment for controlling all your PLL devices. For universal compatibility, the included ASCOM drivers allow you to integrate the focuser and rotator into any Windows-based astrophotography workflow, including popular software like N.I.N.A. or Sequence Generator Pro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the ESATTO 3,5\" LP and ARCO 3\" connect to my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe system is designed for minimal cabling. You connect a single USB cable from your computer to the \u003cstrong\u003eESATTO 3,5\" LP focuser\u003c\/strong\u003e. A short, included link cable then connects the ESATTO to the \u003cstrong\u003eARCO 3\" rotator\u003c\/strong\u003e, providing both power and data. This eliminates the need for multiple USB and power cables running to your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ESATTO 3,5\" LP and ARCO 3\" bundle with software other than PLAY?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both the ESATTO focuser and ARCO rotator come with \u003cstrong\u003eASCOM drivers\u003c\/strong\u003e. This allows you to control them using any ASCOM-compliant astrophotography software on a Windows computer, ensuring compatibility with most popular automation and capture programs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of using the ARCO 3\" rotator in this ESATTO bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ARCO 3\" rotator provides two key functions. First, it allows for \u003cstrong\u003eprecise framing\u003c\/strong\u003e of celestial objects without having to manually rotate your camera. Second, when used with an alt-azimuth mount, it acts as a \u003cstrong\u003efield de-rotator\u003c\/strong\u003e, correcting for the apparent rotation of the sky during long exposures to keep stars pinpoint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this ESATTO 3,5\" LP and ARCO 3\" bundle suitable for a remote observatory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The bundle's robust, all-digital design, remote control capabilities via ASCOM or PLAY, and simplified single-cable connection make it an ideal choice for unattended, remote imaging setups where reliability and precise automation are essential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use a Celestron CPC fork mount. How does the ARCO 3\" rotator in this ESATTO bundle help with long exposures?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOn an alt-azimuth mount like the Celestron CPC, stars will appear to rotate around the center of the field during long exposures. The \u003cstrong\u003eARCO 3\" rotator\u003c\/strong\u003e, when used in de-rotator mode with compatible software, will slowly turn your camera to match this rotation. This allows you to take multi-minute exposures without star trails, which would otherwise be impossible without an equatorial wedge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm framing the Veil Nebula (NGC 6960) with my SCT, how does the ESATTO and ARCO 3\" bundle make it easier?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Veil Nebula is a large, elongated target. The \u003cstrong\u003eARCO 3\" rotator\u003c\/strong\u003e lets you remotely adjust the camera's orientation in fine increments to perfectly align the nebula's structure with your sensor's long axis. Once framed, the \u003cstrong\u003eESATTO 3,5\" LP focuser\u003c\/strong\u003e allows you to achieve critical focus on the faint filaments without physically touching the telescope, preventing any shifts in your carefully set composition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"text-align:center;\"\u003eNo specifications provided.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli style=\"text-align:center; width:100%;\"\u003eNo items listed in the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ESATTO_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":52913369710877,"sku":"PLLEST35LPARCO3","price":3619.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab-ESATTO-3-5-LP-focuser-with-ARCO-3-rotator-1_5ee62158-95c7-4c99-bd64-bd92a290aaab.jpg?v=1789089993"},{"product_id":"ioptron-fa20","title":"iOptron iAFS2 - iOptron 2'' Inline Automatic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSupports a maximum payload of 5kg without slippage\u003c\/li\u003e\n\u003cli\u003eDelivers 0.6µm focusing resolution for critical imaging\u003c\/li\u003e\n\u003cli\u003eFeatures a 51mm clear aperture for full-frame sensors\u003c\/li\u003e\n\u003cli\u003eProvides 30mm of drawtube travel\u003c\/li\u003e\n\u003cli\u003eConnects via two USB2.0 Type-C ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiAFS2 - iOptron 2'' Inline Automatic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe iOptron iAFS2 is an inline automatic focuser engineered to eliminate image shift, supporting a heavy 5kg payload with its patented iLock™ lead worm drive. It provides 30mm of precise travel with a resolution of 0.6µm, ensuring critical focus across your entire imaging session. With a generous 51mm clear aperture, the 783g focuser avoids vignetting on large sensors, while dual USB2.0 Type-C ports provide robust connectivity for ASCOM and INDI control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eiLock™ Lead Worm Drive: The 5kg Zero-Shift System\u003c\/h3\u003e\n\u003cp\u003eAt the core of the iAFS2 is a lead worm movement system that passively locks the drawtube's position the moment the motor stops. This iLock™ technology provides exceptional rigidity, holding up to a 5kg imaging train firm without any backlash or slippage, even when your telescope is pointed at the zenith. This design ensures that your critical focus point is maintained throughout temperature changes and slews across the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTriple Control: 0.6µm Precision via ASCOM, Buttons, or Manual Wheel\u003c\/h3\u003e\n\u003cp\u003eThe iAFS2 offers three independent methods for focus control, giving you complete command over its 0.6µm step size. For automated imaging, it connects to your PC via dual USB-C ports and is fully compatible with ASCOM and INDI drivers for seamless integration with software like NINA or SharpCap. For field adjustments, you can use the responsive onboard directional buttons for powered manual control, or use the large manual focusing wheel for unpowered, tactile adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e51mm Clear Aperture and Built-in Temperature Sensing\u003c\/h3\u003e\n\u003cp\u003eEngineered for modern astro-imaging, the iAFS2 features a 51mm clear aperture, preventing vignetting on full-frame and other large-format sensors. A built-in temperature sensor provides real-time data to your autofocusing software, enabling automatic focus compensation as ambient temperature drops. The focuser also includes a camera angle adjuster for precise framing of your target, making it a complete solution for a robust imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the iLock™ technology in the iOptron iAFS2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eiLock™\u003c\/strong\u003e is iOptron's patented focusing mechanism that uses a \u003cstrong\u003elead worm drive\u003c\/strong\u003e. This system is designed to be self-locking; when the stepper motor is not moving, the drawtube is passively held in place. This prevents any focus shift or slippage caused by gravity, even with a heavy payload up to 5kg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much weight can the iAFS2 focuser support?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron iAFS2 is rated for a \u003cstrong\u003emaximum payload of 5kg (11 lbs)\u003c\/strong\u003e. This capacity allows it to easily handle a complete imaging train, including a cooled astronomy camera, filter wheel, and off-axis guider, without risk of slipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the iAFS2 focuser manually if my computer or power fails?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The iAFS2 is designed with a large manual focusing wheel that allows you to make precise adjustments even without power. This provides a reliable backup and is useful for initial setup or visual observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the iOptron iAFS2 for autofocusing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iAFS2 is compatible with any software that supports the \u003cstrong\u003eASCOM\u003c\/strong\u003e or \u003cstrong\u003eINDI\u003c\/strong\u003e platforms. This includes popular astrophotography acquisition software such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNINA (N.I.N.A.)\u003c\/li\u003e\n\u003cli\u003eSharpCap\u003c\/li\u003e\n\u003cli\u003eSequence Generator Pro (SGP)\u003c\/li\u003e\n\u003cli\u003eKStars\/Ekos\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 51mm clear aperture of the iAFS2 benefit imaging with a full-frame camera on my SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e51mm clear aperture\u003c\/strong\u003e is larger than the diagonal of a full-frame sensor (approx. 43mm). When used with a Schmidt-Cassegrain Telescope (SCT) and a compatible reducer, this ensures that the light cone is not clipped by the focuser itself, preventing vignetting (darkened corners) and providing even illumination across the entire sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the iAFS2 consume significant back focus in my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as an inline focuser, the iAFS2 will consume a portion of your available back focus. The exact amount depends on the telescope adapter used (sold separately). Before purchasing, you should measure the back focus of your specific telescope and imaging train to ensure you have enough space to accommodate the focuser body and achieve focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eInline Auto Focuser with iLock™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e51mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrawtube Travel\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocusing Resolution\u003c\/td\u003e\n\u003ctd\u003e0.6µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Payload\u003c\/td\u003e\n\u003ctd\u003e5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriving Train\u003c\/td\u003e\n\u003ctd\u003eStepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer Control\u003c\/td\u003e\n\u003ctd\u003eYes (ASCOM and INDI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Focusing\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotorized Buttons\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Focusing\u003c\/td\u003e\n\u003ctd\u003eYes (with or without power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor\u003c\/td\u003e\n\u003ctd\u003eYes (Built-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Angle Adjustment\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\/Communication\u003c\/td\u003e\n\u003ctd\u003eUSB2.0 Type-C port (x2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e90.5 X 106 X 82mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e783g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eiAFS2 Inline Automatic Focuser\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Visual Back\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e A telescope-specific adapter is required for connection and is NOT included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917287944477,"sku":"IOP-FA20","price":643.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-iAFS2-iOptron-2-Inline-Automatic-Focuser-1_a55fa084-f175-4694-80e6-7566730ebc44.jpg?v=1789141964"},{"product_id":"ioptron-fa30","title":"iOptron iAFS3 - 3-inch Inline Automatic Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e3-inch inline auto focuser with iLock™ technology\u003c\/li\u003e\n\u003cli\u003eSupports heavy imaging payloads up to 6kg\u003c\/li\u003e\n\u003cli\u003e68mm clear aperture minimizes vignetting\u003c\/li\u003e\n\u003cli\u003ePrecise 0.4um focusing resolution\u003c\/li\u003e\n\u003cli\u003e30mm of drawtube travel distance\u003c\/li\u003e\n\u003cli\u003eASCOM and INDI compliant for computer control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron iAFS3 - 3-inch Inline Automatic Focuser\u003c\/h2\u003e\n\u003cp\u003eThe iOptron iAFS3 is a 3-inch inline automatic focuser engineered to eliminate mechanical shift, supporting imaging payloads up to 6kg with its patented iLock™ technology. A generous 68mm clear aperture provides unvignetted fields for large sensors, while the stepper motor achieves a focusing resolution of 0.4um over 30mm of travel. Weighing 1062g and featuring dual USB-C ports, the iAFS3 integrates seamlessly into advanced imaging setups requiring absolute focus stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eiLock™ Technology: Zero-Shift Focusing for 6kg Payloads\u003c\/h3\u003e\n\u003cp\u003eAt the core of the iAFS3 is iOptron's iLock™ system, which uses a lead worm movement to passively lock the drawtube's position the instant the motor stops. This design prevents any focus drift or slippage, even when a heavy 6kg payload of a camera, filter wheel, and off-axis guider is pointed near the zenith. This mechanical certainty ensures that the focuser's precise 0.4um step size translates directly to sharp stars, without any backlash or flexure compromising your data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTriple Control System: ASCOM, Onboard Buttons, and Manual Override\u003c\/h3\u003e\n\u003cp\u003eThe iAFS3 offers three distinct methods of control for complete flexibility in the field. For fully automated sessions, it connects to your PC via one of two USB-C ports and is controlled through ASCOM or INDI drivers in software like NINA or SGP, using data from the built-in temperature sensor to maintain focus all night. For quick adjustments at the telescope, integrated motorized buttons allow for powered focusing without a computer, while a manual override wheel gives you tactile control for initial setup or situations where power is unavailable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEngineered for Large Imaging Trains: 68mm Aperture and 30mm of Travel\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for serious astrophotography, the iAFS3 features a large 68mm clear aperture to illuminate full-frame and larger sensors without vignetting. Its 30mm of drawtube travel provides sufficient range to achieve focus with various accessories and optical configurations. The focuser also includes a camera angle adjustment mechanism, allowing you to perfectly frame your target without disturbing the optical train. While a 2\" visual back is included, you will need to acquire the appropriate telescope-side adapter to match your specific instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eiOptron iAFS3 vs. iAFS2: Choosing the Right Focuser Size\u003c\/h3\u003e\n\u003cp\u003eThe primary difference between the iAFS3 and its 2-inch sibling, the iAFS2, is the clear aperture and intended application. The iAFS2 is a more compact and lighter option, ideal for smaller refractors and systems using APS-C or smaller sensors where the larger barrel of the iAFS3 is unnecessary.\u003c\/p\u003e\n\u003cp\u003eYou should choose the 3-inch iAFS3 when your imaging train involves a full-frame or larger format sensor, or when you are using a large aperture telescope where a 2-inch focuser would become a bottleneck in the light path. The iAFS3's 68mm clear aperture is essential for preventing vignetting and ensuring even illumination across these larger fields of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the iOptron iAFS3's iLock™ technology?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iLock™ technology uses a lead worm drive that passively locks the focuser's position when the motor is not moving. This completely prevents the drawtube from slipping or shifting under the weight of a heavy camera, ensuring your focus remains perfect regardless of the telescope's orientation. It's critical for maintaining sharpness during long exposures or automated imaging runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the iOptron iAFS3 handle a heavy payload on a large SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iAFS3 is rated for a \u003cstrong\u003emaximum payload of 6kg (13.2 lbs)\u003c\/strong\u003e, making it more than capable of handling a typical imaging train with a cooled camera, large filter wheel, and off-axis guider. The rigid, all-metal body and iLock mechanism ensure there is no flexure or drift, even on a system with a moving primary mirror like a Schmidt-Cassegrain Telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the iOptron iAFS3 without a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The iAFS3 has two non-computer control methods. It features \u003cstrong\u003eonboard motorized focusing buttons\u003c\/strong\u003e for powered, push-button adjustments at the telescope. It also includes a \u003cstrong\u003emanual focusing wheel\u003c\/strong\u003e that overrides the motor, allowing for fine, tactile control without any power required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat adapters do I need to connect the iOptron iAFS3 to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron iAFS3 does \u003cstrong\u003enot\u003c\/strong\u003e include a telescope-side adapter. You must purchase an adapter specifically designed to connect the iAFS3 to your telescope's particular rear thread or visual back type (e.g., M68, SCT 3.25\", etc.). iOptron offers a range of optional adapters to fit various OTAs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the built-in temperature sensor on the iAFS3?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe built-in temperature sensor allows automatic focusing software (via ASCOM\/INDI) to monitor ambient temperature changes throughout the night. As the temperature drops, the optical tube can contract, causing the focal point to shift. The software uses the sensor's data to trigger periodic refocusing routines, ensuring your images remain critically sharp from dusk till dawn.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the iOptron iAFS3 cause vignetting with my full-frame camera on a fast refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iAFS3 is specifically designed to prevent vignetting in such scenarios. Its large \u003cstrong\u003e68mm clear aperture\u003c\/strong\u003e provides a wide, unobstructed light path that can fully illuminate sensors up to and beyond the standard 35mm full-frame format, even when used with fast optical systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Size\u003c\/td\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eInline Auto Focuser with iLock™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Payload\u003c\/td\u003e\n\u003ctd\u003e6kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e68mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrawtube Travel\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocusing Resolution\u003c\/td\u003e\n\u003ctd\u003e0.4um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive System\u003c\/td\u003e\n\u003ctd\u003eStepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer Control\u003c\/td\u003e\n\u003ctd\u003eYes (ASCOM and INDI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Focusing\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Control\u003c\/td\u003e\n\u003ctd\u003eMotorized Buttons \u0026amp; Manual Override Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorts\u003c\/td\u003e\n\u003ctd\u003e2x Type-C USB2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor\u003c\/td\u003e\n\u003ctd\u003eYes (Built-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Angle Adjustment\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e94 x 133 x 108mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1062g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight \u0026amp; Dimensions\u003c\/td\u003e\n\u003ctd\u003e4 lbs, 11 x 8 x 7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eiAFS3 Focuser Body\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Visual Back\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917289779485,"sku":"IOP-FA30","price":755.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-iAFS3-iOptron-3-Inline-Automatic-Focuser-1_ece6b400-c720-4f0e-bc74-f72cf6d18645.jpg?v=1789141981"},{"product_id":"ioptron-8453","title":"iOptron Electronic Automatic Focuser - iEAF","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e5 kg Maximum Payload Capacity\u003c\/li\u003e\n\u003cli\u003eHigh-Precision Stepper Motor Drive\u003c\/li\u003e\n\u003cli\u003eBuilt-in Temperature Sensor for Focus Compensation\u003c\/li\u003e\n\u003cli\u003eASCOM Compatible for Automated Imaging\u003c\/li\u003e\n\u003cli\u003eWeighs only 254g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron Electronic Automatic Focuser - iEAF\u003c\/h2\u003e\n\u003cp\u003eThe iOptron Electronic Automatic Focuser (iEAF) automates one of the most critical steps in astrophotography, delivering repeatable, sharp focus across entire imaging sessions. Its high-precision stepper motor handles imaging trains up to 5 kg, while the built-in temperature sensor provides the data needed for software to counteract thermal focus shift. The entire system weighs only 254g and connects via a single USB2.0 port for power and data, eliminating the need for external power supplies or hand controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Drive System: A 5 kg Payload Stepper Motor\u003c\/h3\u003e\n\u003cp\u003eAt the core of the iEAF is a robust stepper motor designed for smooth, precise, and repeatable movements. With a payload capacity of 5 kg, it can easily handle heavy imaging setups that include large-sensor cameras, filter wheels, and off-axis guiders without slipping or backlash. This ensures that once your focusing routine is complete, the focus point remains exactly where it needs to be for the duration of your exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Focus Control: Built-in Temperature Sensor \u0026amp; ASCOM Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe iEAF is engineered to eliminate focus drift caused by falling nighttime temperatures. A built-in temperature sensor constantly monitors ambient conditions, feeding this data to your imaging software via its ASCOM driver. Programs like N.I.N.A. or SharpCap can then use this information to trigger auto-focus routines automatically, ensuring your stars remain pinpoints from dusk until dawn without manual intervention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eErgonomic Design: A 254g Focuser with Integrated Manual Controls\u003c\/h3\u003e\n\u003cp\u003eMeasuring just 51 x 61 x 41mm and weighing only 254g, the iEAF adds minimal weight and profile to your optical tube, simplifying balancing. For initial setup or manual adjustments in the field, iOptron integrated two direction buttons directly onto the focuser body. This provides immediate, tactile control without needing to connect a separate hand controller or interact with software—a significant convenience for quick adjustments at the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eiOptron iEAF vs. ZWO EAF: A Head-to-Head Comparison\u003c\/h3\u003e\n\u003cp\u003eWhile the ZWO EAF is a popular choice, the iOptron iEAF presents several key advantages for the astrophotographer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Controls:\u003c\/strong\u003e The iEAF's biggest ergonomic advantage is its integrated manual control buttons. The ZWO EAF requires a separate, wired hand controller for manual operation, adding another cable and component to manage in the dark.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware:\u003c\/strong\u003e Users report the iEAF's included mounting brackets and hardware feel more robust and provide a more straightforward installation on a wider variety of Crayford and Rack-and-Pinion focusers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Operation:\u003c\/strong\u003e The stepper motor in the iEAF is noted for its particularly smooth and quiet operation, ensuring minimal disturbance to the optical train during focusing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the iOptron iEAF's temperature sensor improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs the temperature drops overnight, the metal in your telescope tube contracts, causing the focal point to shift. The iOptron iEAF's \u003cstrong\u003ebuilt-in temperature sensor\u003c\/strong\u003e relays this change to ASCOM-compatible software, which can automatically re-run your autofocus routine. This ensures your images remain critically sharp all night long, preventing hours of data from being ruined by thermal focus drift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software is compatible with the iOptron iEAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron iEAF is fully \u003cstrong\u003eASCOM compatible\u003c\/strong\u003e, allowing it to work with most major astrophotography control software. It is known to integrate seamlessly with popular applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eN.I.N.A. (Nighttime Imaging 'N' Astronomy)\u003c\/li\u003e\n\u003cli\u003eSharpCap\u003c\/li\u003e\n\u003cli\u003eSequence Generator Pro (SGP)\u003c\/li\u003e\n\u003cli\u003eAnd any other software that supports ASCOM-compliant focusers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the iOptron iEAF work with my 8\" Schmidt-Cassegrain's focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the iOptron iEAF is designed for broad compatibility with most \u003cstrong\u003eCrayford or Rack-and-Pinion\u003c\/strong\u003e style focusers, which are common on Schmidt-Cassegrains, refractors, and Newtonians. The included bracket and shaft coupler kit is versatile, but you should always confirm the physical layout of your specific focuser to ensure a clear mounting path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 5 kg payload capacity of the iEAF mean for my setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e5 kg (11 lbs) maximum payload\u003c\/strong\u003e means the iEAF's motor has enough torque to lift a heavy imaging train without stalling or slipping. This is more than sufficient for typical setups including a large astronomy camera, a multi-filter wheel, and an off-axis guider, ensuring reliable and precise focusing performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the manual control buttons on the iOptron iEAF work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron iEAF features two small buttons directly on the housing for manual control. One button moves the focuser inward, and the other moves it outward. This allows for quick, tactile adjustments at the telescope for initial focusing without needing to be connected to a computer or fumbling with a separate hand controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Andromeda Galaxy (M31) on a cold night; how does the iEAF help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a long imaging session on a target like the Andromeda Galaxy (M31), temperatures can drop significantly, causing your telescope to lose focus. The iEAF's \u003cstrong\u003ebuilt-in temperature sensor\u003c\/strong\u003e and ASCOM integration allow your software to monitor this change and automatically refocus every hour or after a specific temperature drop. This keeps your stars tight and your galactic details sharp across all your subframes without you needing to manually intervene.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003eCrayford or Rack-and-Pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive System\u003c\/td\u003e\n\u003ctd\u003eStepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Payload\u003c\/td\u003e\n\u003ctd\u003e5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Speed\u003c\/td\u003e\n\u003ctd\u003e3 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eASCOM compatible or manual buttons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Sensor\u003c\/td\u003e\n\u003ctd\u003eYes (Built-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower \/ Communication\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e51 x 61 x 41mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e254g (focuser only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe manufacturer has not provided a list of included items for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917289976093,"sku":"IOP-8453","price":279.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Electronic-Automatic-Focuser-iEAF-1_3967a399-7aba-4918-8d37-91979d515fb5.jpg?v=1789141998"}],"url":"https:\/\/davidastro.com\/collections\/electronic-focusers.oembed","provider":"David Astro","version":"1.0","type":"link"}