{"title":"PrimaLuceLab ESATTO Robotic Focusers","description":"\u003cp\u003ePrimaLuceLab ESATTO robotic focusers replace the telescope's focuser with a motorized unit for precise, repeatable focus in automated imaging. Sizes run from the ESATTO 2\" and 2\" LP low profile to the 3\" and 4\" microFocusers and the 3.5\" LP, with versions combined with an ARCO rotator.\u003c\/p\u003e\u003cp\u003eA large set of adapters, stop ring adapters, extension tubes and visual backs fits ESATTO to specific telescopes, from the Takahashi FSQ-106EDXIV to the PlaneWave DeltaRho 350 and GSO Ritchey-Chretien tubes.\u003c\/p\u003e","products":[{"product_id":"primalucelab-temperature-sensor-for-ecco-sesto-senso-and-esatto","title":"PrimaLuceLab Temperature Sensor for ECCO, SESTO SENSO and ESATTO","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDirect compatibility with PrimaLuceLab ECCO, SESTO SENSO, and ESATTO devices\u003c\/li\u003e\n\u003cli\u003eEnables automated dew heater management when used with the ECCO controller\u003c\/li\u003e\n\u003cli\u003eProvides essential data for temperature-based autofocus compensation\u003c\/li\u003e\n\u003cli\u003eMeasures direct optics temperature for the most accurate environmental readings\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\u003ePrimaLuceLab Temperature Sensor for ECCO, SESTO SENSO and ESATTO\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Temperature Sensor adds a critical data point to your automated imaging rig, enabling both intelligent dew control and precise focus compensation. When connected to an ECCO environmental controller, it measures your telescope's optics temperature, allowing for automatic, efficient power management of dew heaters. Paired with a SESTO SENSO or ESATTO robotic focuser, it provides the temperature data needed for autofocus software to correct for thermal focus shift 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\u003eAutomated Dew Control with ECCO\u003c\/h3\u003e\n\u003cp\u003eConnecting this sensor to your ECCO environmental controller closes the loop on automated dew prevention. While ECCO calculates the ambient dew point from air temperature and humidity, this probe provides the final, critical variable: the real-time temperature of your primary mirror or objective lens. This allows the ECCO to apply power to your dew heaters with precision, using only enough energy to keep the optics clear without introducing tube currents from overheating.\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\u003eTemperature-Compensated Focusing with ESATTO \u0026amp; SESTO SENSO\u003c\/h3\u003e\n\u003cp\u003eThermal focus shift is a primary cause of soft images during an imaging session. As ambient temperature changes, your telescope's optical tube expands or contracts, minutely shifting the focal plane. By attaching this sensor to your SESTO SENSO or ESATTO focuser, you provide your autofocus software with the live temperature data it needs to counteract this drift. The software can then automatically adjust focus after a set temperature drop, ensuring your stars remain sharp from dusk until dawn.\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 PrimaLuceLab Temperature Sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis sensor serves two key functions in an automated astrophotography setup. It allows the \u003cstrong\u003ePrimaLuceLab ECCO\u003c\/strong\u003e controller to intelligently manage dew heaters, and it provides \u003cstrong\u003eESATTO or SESTO SENSO\u003c\/strong\u003e focusers with the temperature data needed 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\"\u003eHow does this sensor help with dew when used with the PrimaLuceLab ECCO?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe sensor measures the exact temperature of your telescope's optics. The \u003cstrong\u003eECCO controller\u003c\/strong\u003e compares this to the ambient dew point it calculates. It then applies just enough power to your dew heaters to keep the optics' temperature slightly above the dew point, preventing dew from forming while conserving battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab Temperature Sensor improve autofocus with an ESATTO or SESTO SENSO?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTelescopes change focus as they cool down. By connecting this sensor to your \u003cstrong\u003eESATTO or SESTO SENSO focuser\u003c\/strong\u003e, your autofocusing software can monitor the temperature change. This allows the software to automatically trigger a refocusing routine when the temperature drops by a predefined amount, 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\"\u003eWhere should I place the PrimaLuceLab Temperature Sensor on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor the most accurate readings, the sensor probe should be placed in direct contact with the metal cell holding your primary mirror or objective lens, or as close to the main optics as possible. This ensures it is measuring the temperature of the glass assembly, not just the air inside the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need special software to use the PrimaLuceLab Temperature Sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe sensor itself does not require software. Its data is used by the device it's connected to (ECCO, ESATTO, or SESTO SENSO). To use it for temperature-compensated focusing, you will need third-party autofocus software (like N.I.N.A. or SGP) that can read the temperature data from the focuser's ASCOM driver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab Temperature Sensor compatible with devices from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this sensor is designed specifically for the PrimaLuceLab ecosystem. It is only compatible with the \u003cstrong\u003eECCO environmental controller\u003c\/strong\u003e and the \u003cstrong\u003eSESTO SENSO and ESATTO robotic focusers\u003c\/strong\u003e.\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\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\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":44967858962717,"sku":"PLL-SESTOSENSO-TEMP","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Temperature-sensor-for-ECCO-SESTO-SENSO-and-ESATTO__52293.1617396013.1280.1280.jpg?v=1684346142"},{"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":"primalucelab-adapter-from-m56-to-t2-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to T2 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the ESATTO 2\" M56 female thread to a standard T2 (M42x0.75) male thread\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 2\" robotic focuser\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational adjustment of your camera\u003c\/li\u003e\n\u003cli\u003eEnables secure, perfectly framed attachment of T2-threaded cameras, filter wheels, 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\u003ePrimaLuceLab Adapter from M56 to T2 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter provides the essential connection between the M56 thread on an ESATTO 2\" robotic focuser and the universal T2 (M42x0.75) thread standard on most astronomy cameras and accessories. By converting the focuser's native connection, it opens up compatibility with a vast ecosystem of imaging equipment. The integrated stop ring allows you to lock your camera's orientation, ensuring perfect framing of your target every time.\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\u003eSecure M56 to T2 Connection for the ESATTO 2\" Focuser\u003c\/h3\u003e\n      \u003cp\u003eThe primary function of this adapter is to provide a robust, threaded connection from your ESATTO 2\" focuser's draw tube to any accessory with a female T2 thread. This allows you to directly attach popular DSLRs, mirrorless cameras, or dedicated astronomy cameras without flexure or instability. It's the standard interface needed for building a solid 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\u003ePrecise Framing Control with the Integrated Stop Ring\u003c\/h3\u003e\n      \u003cp\u003eUnlike a basic, single-piece adapter, this model includes a separate stop ring. This feature solves the common problem of a camera tightening at an awkward angle. You can thread your camera on, back it off to the perfect orientation for your target, and then tighten the stop ring against the camera body to lock it securely in place, preventing any rotation during an imaging session.\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 PrimaLuceLab M56 to T2 Adapter for ESATTO 2\" used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to connect any camera, filter wheel, or off-axis guider that uses a standard \u003cstrong\u003eT2 (M42x0.75) female thread\u003c\/strong\u003e to the \u003cstrong\u003eM56 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 2\" robotic focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this ESATTO 2\" adapter improve imaging?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe stop ring allows you to control the final rotational angle of your camera. After threading your camera on, you can rotate it to the ideal position for framing your object and then tighten the stop ring to lock that orientation. This prevents your imaging sensor from being crooked relative to your target.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have an ESATTO 2\" focuser and a ZWO camera with a T2-thread. Is this the correct adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the exact adapter you need. It bridges the M56 thread on the ESATTO 2\" focuser to the T2 thread on your ZWO camera, creating a secure, threaded connection for your imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use this M56 to T2 adapter to frame the Horsehead Nebula (Barnard 33) vertically with my rectangular sensor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFirst, thread the main adapter body into your ESATTO 2\" focuser. Next, thread your camera onto the adapter's T2 thread until it is snug. Then, carefully loosen the camera just enough to rotate it so the long axis of your sensor aligns with the vertical structure of the nebula. Finally, tighten the adapter's stop ring against the camera body to lock this orientation in place.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with other 2\" focusers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is specifically designed for the \u003cstrong\u003eM56 thread\u003c\/strong\u003e used by the PrimaLuceLab ESATTO 2\" focuser. It is not compatible with standard 2\" visual backs or other focusers that do not have this specific M56 thread on their draw tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M56 to T2 Adapter add a lot of length to the optical path?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed to be a low-profile solution. While any adapter adds some length, this model is engineered to provide a secure T2 connection while consuming a minimal amount of back focus, a critical consideration when building complex imaging trains.\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\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":44967861977373,"sku":"PLL-PL3600218","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-T2-with-stop-ring-for-ESATTO-2__81397.1617396014.1280.1280.jpg?v=1684346165"},{"product_id":"primalucelab-adapter-from-m56-to-m48-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M48 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48x0.75 accessories to ESATTO 2\" focusers\u003c\/li\u003e\n\u003cli\u003eAdds only 4mm of optical path length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise camera rotation\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the ESATTO 2\" M56 draw tube\u003c\/li\u003e\n\u003cli\u003eEnables secure connection for cameras and filter wheels\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\u003ePrimaLuceLab Adapter from M56 to M48 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter seamlessly converts the M56 female thread on the ESATTO 2\" focuser's draw tube to a standard M48x0.75 male thread, adding a minimal 4mm of optical length to your imaging train. It provides a secure, direct-threaded connection for any M48-compatible camera, off-axis guider, or filter wheel. The integrated stop ring allows you to lock your camera's orientation, ensuring perfect sensor alignment and framing for every target.\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 Minimal 4mm Optical Path for M48 Accessories\u003c\/h3\u003e\n\u003cp\u003eEngineered for imagers conscious of back focus, this adapter consumes only 4mm of optical path. The adapter body itself is just 1.5mm thick, while the included stop ring accounts for the other 2.5mm. This allows you to integrate M48 accessories into your ESATTO 2\" setup without consuming significant back focus, preserving compatibility with reducers and other correctors.\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\u003ePrecise Framing with the ESATTO 2\" M48 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe included M48 stop ring is the key to achieving perfect rotational alignment. After threading your camera onto the adapter, you can rotate it to the desired angle and then lock it in place by tightening the stop ring against the camera body. This prevents the camera from rotating during an imaging session and allows you to precisely frame objects like the Andromeda Galaxy (M31) or the Horsehead Nebula (B33) without adjusting the entire optical tube.\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 primary function of the PrimaLuceLab M56 to M48 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect astrophotography cameras, filter wheels, or other accessories that use a standard \u003cstrong\u003eM48x0.75 female thread\u003c\/strong\u003e to the draw tube of a \u003cstrong\u003ePrimaLuceLab ESATTO 2\"\u003c\/strong\u003e robotic focuser, which has an M56 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the M48 stop ring on the ESATTO 2\" adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate, threaded ring that allows for precise rotational framing. You first thread the stop ring onto the adapter, then your camera. You can then loosen the stop ring, rotate your camera to the perfect angle, and then tighten the ring up against the camera body to lock its position securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much back focus does the PrimaLuceLab M56 to M48 adapter use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is composed of the 1.5mm thick adapter itself and the 2.5mm thick stop ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to attach my M48-threaded ZWO or QHY camera to an ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This is the correct adapter for connecting any camera with a standard M48x0.75 female thread directly to the ESATTO 2\" focuser for a secure, rigid imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the right adapter for using a 2\" eyepiece or diagonal with the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically for M48 threaded accessories. For visual observation with 2\" eyepieces or a diagonal, you need the dedicated \"2\" Visual Back for ESATTO 2\",\" which provides a compression ring eyepiece holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the M56 to M48 Adapter on my ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. Simply thread the M56 female side of the adapter directly onto the M56 male thread on the end of the ESATTO 2\" focuser's draw tube until it is snug. Then, you can attach your M48 accessories to the other side.\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\/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":44967862010141,"sku":"PLL-PL3600216","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M48-with-stop-ring-for-ESATTO-2__70405.1617396014.1280.1280.jpg?v=1684346167"},{"product_id":"primalucelab-adapter-from-m56-to-sc-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to SC with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the ESATTO 2\" focuser's M56 thread to a standard female SC thread\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of Schmidt-Cassegrain focal reducers and accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise 360° rotational framing of your camera\u003c\/li\u003e\n\u003cli\u003eSecures accessories for a rigid, flex-free imaging train\u003c\/li\u003e\n\u003cli\u003eAll-metal construction ensures a durable and reliable connection\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 Adapter from M56 to SC with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to SC with Stop Ring seamlessly integrates your ESATTO 2\" focuser with the Schmidt-Cassegrain (SC) accessory ecosystem, converting the focuser's native M56 drawtube thread to securely attach accessories like focal reducers.\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\u003eAchieve Perfect Framing: The ESATTO 2\" M56 to SC Adapter\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between the M56x1 female thread on the ESATTO 2\" focuser's drawtube and the wide range of accessories that use the common male Schmidt-Cassegrain thread. It's the key to using popular focal reducers or other SC-threaded correctors directly with your PrimaLuceLab focuser.\u003c\/p\u003e\n\u003cp\u003eThe defining feature is the independent stop ring. After threading your accessory onto the adapter, you can slightly loosen the stop ring to rotate your entire imaging train 360°. This allows you to perfectly frame your target—for example, aligning your sensor with the long axis of the Andromeda Galaxy (M31)—and then lock it down without losing focus or alignment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e Threads directly into the ESATTO 2\" drawtube for a rigid, flex-free attachment point that can support a full imaging payload.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Rotational Control:\u003c\/strong\u003e The integrated stop ring allows you to orient your camera or accessory and lock it in place, ensuring perfect composition of your astrophoto.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Opens up the advanced ESATTO 2\" focuser to a wide range of standard SC-threaded accessories, most notably focal reducers from various manufacturers.\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 primary purpose of the PrimaLuceLab M56 to SC adapter for the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to convert the M56 female thread on the drawtube of the \u003cstrong\u003eESATTO 2\" focuser\u003c\/strong\u003e into a standard female Schmidt-Cassegrain (SC) thread. This allows you to securely attach accessories like focal reducers, off-axis guiders, and other components that use the SC thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this ESATTO 2\" adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring provides \u003cstrong\u003erotational freedom\u003c\/strong\u003e for your entire imaging train. After attaching your camera and accessories, you can loosen the ring, rotate the camera to the ideal angle for framing your target, and then tighten the ring to lock it in that position. This is crucial for achieving optimal composition without having to disassemble your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to connect a Celestron f\/6.3 reducer to my ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Celestron f\/6.3 Reducer\/Corrector uses a standard male SC thread for attachment to a telescope. This adapter creates the necessary female SC port on your ESATTO 2\" focuser, allowing you to thread the reducer in directly and securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I want to frame the Horsehead Nebula (Barnard 33) vertically with my camera, will this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the stop ring is designed for. You can attach your camera, achieve focus on a nearby star like Alnitak, and then use the stop ring to rotate your camera so that the distinctive shape of the Horsehead Nebula and Flame Nebula (NGC 2024) fits perfectly along the long axis of your sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this M56 to SC adapter add significant length to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter and stop ring are designed to be very low-profile. While any adapter adds some optical path length, this component is engineered to add a minimal amount, helping you preserve precious back focus in your imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to use a 2\" diagonal for visual observing with the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically for SC-threaded accessories. For visual observing with a standard \u003cstrong\u003e2\" diagonal or eyepiece\u003c\/strong\u003e, you would need the dedicated \"2\" Visual Back for ESATTO 2\"\" (PL3600003), which provides a standard 2\" eyepiece holder with compression rings.\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\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":44967862468893,"sku":"PLL-PL3600225","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-SC-with-stop-ring-for-ESATTO-2__53837.1641520563.1280.1280.jpg?v=1684346169"},{"product_id":"primalucelab-adapter-from-m56-to-m54-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects accessories with M54x0.75 female threads to the ESATTO 2\" focuser\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the ESATTO 2\" M56 draw tube\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise 360° rotational framing\u003c\/li\u003e\n\u003cli\u003eConsumes only 4mm of optical path length\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\u003ePrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to M54 with Stop Ring for ESATTO 2\" provides a rigid, threaded connection for your M54-threaded accessories, consuming a minimal 4mm of optical path. This adapter is specifically designed to integrate your camera, off-axis guider, or filter wheel seamlessly with the ESATTO 2\" robotic focuser's M56 draw tube.\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\u003eSecure M54 Connection with Just 4mm of Back Focus\u003c\/h3\u003e\n\u003cp\u003eThis adapter converts the M56 female thread on the ESATTO 2\" draw tube to a standard M54x0.75 female thread, opening up compatibility with a wide range of imaging equipment. Its design prioritizes a minimal profile, adding only 4mm of total thickness (1.5mm for the adapter and 2.5mm for the stop ring) to your imaging train, preserving critical back focus for complex setups.\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 Framing with the Integrated M54 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe key feature of this adapter is the independent stop ring. This mechanism allows you to thread your camera on fully, then slightly loosen the stop ring to rotate your entire imaging train to the perfect orientation. Once you have framed your target, like aligning your sensor with the long axis of the Andromeda Galaxy (M31), you simply tighten the stop ring to lock the camera's angle securely without losing rigidity.\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 PrimaLuceLab M56 to M54 adapter for the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to connect astrophotography accessories that use a female \u003cstrong\u003eM54x0.75 thread\u003c\/strong\u003e—such as many cameras, filter wheels, and off-axis guiders—to the \u003cstrong\u003eM56 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 2\" robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the PrimaLuceLab M56 to M54 adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003eprecisely set the rotational angle\u003c\/strong\u003e of your camera sensor. This is crucial for composition, letting you frame celestial objects exactly as you wish. You can loosen the ring, rotate the camera for the perfect shot, and then lock it in place without having to unthread your entire imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the optical length of the PrimaLuceLab M56 to M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is comprised of the 1.5mm thick adapter body and the 2.5mm thick stop ring. This minimal length helps conserve precious back focus, which is essential when using reducers or other accessories with strict spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to better frame the Orion Nebula (M42) with my rectangular sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. The stop ring allows you to orient your camera's sensor to best fit the sprawling nebulosity of M42. You can align the long axis of your sensor with the nebula's most interesting features, ensuring you capture the entire complex in a single, well-composed frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with any focuser, or just the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003ePrimaLuceLab ESATTO 2\" focuser\u003c\/strong\u003e, which features an M56 female thread on its draw tube. While it might physically thread onto other focusers with an M56 male thread, it is optimized for use within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen connecting my camera to an ESATTO 2\" focuser on my refractor, is this the adapter I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf your camera or the next accessory in your imaging train (like a filter wheel) has a female M54x0.75 thread, then this is the correct adapter to connect it to the ESATTO 2\". It provides a secure, rotatable, and low-profile connection.\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 Side Thread\u003c\/td\u003e\n\u003ctd\u003eM56 x 1 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Thread\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\" Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e4mm (1.5mm adapter + 2.5mm stop ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eIntegrated stop ring for camera rotation\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\"\u003eAdapter from M56 to M54 with Stop Ring\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\/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":44967862501661,"sku":"PLL-PL3600242","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M54-with-stop-ring-for-ESATTO-2__14963.1617396015.1280.1280.jpg?v=1684346170"},{"product_id":"primalucelab-adapter-from-m56-to-m57-with-stop-ring-for-esatto-2","title":"PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 2\" M56 Male Thread to M57 Female Thread\u003c\/li\u003e\n\u003cli\u003eConnects M57x0.75 Threaded Cameras and Accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated Stop Ring for Precise Rotational Framing\u003c\/li\u003e\n\u003cli\u003eDesigned Specifically for the PrimaLuceLab ESATTO 2\" Focuser\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\u003ePrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M56 to M57 with Stop Ring for ESATTO 2\" provides a robust, threaded connection between the ESATTO 2\" robotic focuser and any camera or accessory with an M57x0.75 female thread. This component is essential for integrating a wide range of imaging equipment into the PrimaLuceLab ecosystem. It includes an independent stop ring, allowing you to precisely set the rotation of your camera for perfect framing of celestial 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\u003eSecure M56 to M57 Connection for ESATTO 2\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered to solve a critical connection need for owners of the ESATTO 2\" focuser. It directly threads onto the focuser's M56 draw tube, converting it to a standard M57 female thread. This allows you to create a secure, flexure-free imaging train with accessories that use the M57 standard, eliminating the potential for tilt or sag that can occur with 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\u003eThe Stop Ring for Precise Camera Alignment\u003c\/h3\u003e\n\u003cp\u003eBeyond simple adaptation, this unit features an integrated M57 stop ring. This mechanism allows you to lock your camera's orientation at any angle. After threading your camera on, you can loosen the stop ring, rotate the camera to achieve the ideal composition for your target, and then tighten the ring to fix it firmly in place. This is invaluable for framing nebulae or aligning with the orientation of a galaxy without rotating your entire optical tube.\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 primary purpose of the PrimaLuceLab M56 to M57 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to connect cameras and accessories that have a female M57x0.75 thread to the male M56 thread on the draw tube of a \u003cstrong\u003ePrimaLuceLab ESATTO 2\" robotic focuser\u003c\/strong\u003e. It creates a secure, all-threaded connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the ESATTO 2\" adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows for precise \u003cstrong\u003erotational framing\u003c\/strong\u003e. You can thread your camera on, loosen the ring to rotate the camera to the perfect orientation for your target—for example, fitting the entire Andromeda Galaxy (M31) in the frame—and then lock it down. This prevents you from having to rotate your entire telescope or diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with any focuser other than the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed with an M56 male thread to fit the PrimaLuceLab ESATTO 2\" focuser. It will not work with focusers from other brands that do not use this specific thread size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter to frame a target like the Horsehead Nebula (Barnard 33) vertically in my camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The stop ring is perfect for this scenario. You can precisely rotate your camera to align its longest sensor axis with the nebula's orientation and then lock the position with the stop ring, ensuring optimal composition for your image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with a camera that has a standard 1.25\" or 2\" nosepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter creates a female M57 thread. It is intended for cameras or accessories that have a corresponding male M57 thread. For accessories with a 2\" nosepiece, you would need a different adapter, such as PrimaLuceLab's 2\" visual back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M56 to M57 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to be as thin as possible while maintaining structural rigidity. While it does add a small amount of optical path length, it is a low-profile solution intended to minimize impact on back focus requirements. Always confirm you have sufficient back focus available in your 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\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":44967862599965,"sku":"PLL-PL3600227","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M56-to-M57-with-stop-ring-for-ESATTO-2__09372.1617396015.1280.1280.jpg?v=1684346175"},{"product_id":"primalucelab-2-visual-back-for-esatto-2","title":"PrimaLuceLab 2\" Visual Back for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects 2\" accessories to ESATTO 2\" and ARCO 2\"\u003c\/li\u003e\n\u003cli\u003eM56 female thread for direct attachment\u003c\/li\u003e\n\u003cli\u003eThree locking screws for secure, centered grip\u003c\/li\u003e\n\u003cli\u003eInternal brass compression ring prevents scratches\u003c\/li\u003e\n\u003cli\u003eAll-metal construction for rigidity\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\u003ePrimaLuceLab 2\" Visual Back for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back provides the essential M56 threaded connection for using standard 2-inch accessories with your ESATTO 2\" robotic focuser or ARCO 2\" rotator. This adapter allows you to securely attach 2\" diagonals for visual observing or camera nosepieces for imaging. It features a non-marring brass compression ring and three locking screws to firmly hold heavy equipment without damaging your accessory barrels.\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\u003eSecure, Non-Marring Connection for 2\" Accessories\u003c\/h3\u003e\n\u003cp\u003eThis visual back is engineered to protect your investment in eyepieces and cameras. An internal brass compression ring distributes clamping force evenly around the barrel of your accessory, preventing the gouges and scratches commonly caused by single-screw designs. Three locking screws, spaced 120° apart, provide a perfectly centered and exceptionally strong grip, ensuring your imaging train remains rigid and free of tilt, even when loaded with heavy cameras or binoviewers.\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\u003eM56 Thread for Native ESATTO 2\" and ARCO 2\" Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned as a native component of the PrimaLuceLab ecosystem, this visual back features an M56 female thread that attaches directly to the draw tube of the ESATTO 2\" microfocuser. This direct-thread connection eliminates potential flexure from stacked adapters. It is also the correct adapter for adding a 2\" eyepiece holder to the ARCO 2\" rotator, enabling you to manually frame targets with your camera before engaging the rotator.\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 PrimaLuceLab 2\" Visual Back for ESATTO 2\" used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect standard 2-inch accessories, such as diagonals, eyepieces, or camera nosepieces, to the \u003cstrong\u003eM56 thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 2\" robotic focuser or ARCO 2\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the PrimaLuceLab 2\" Visual Back to observe Jupiter with my ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo observe a planet like Jupiter, you simply thread the visual back directly onto the M56 draw tube of your ESATTO 2\". Then, insert your 2\" diagonal into the visual back, secure it with the three locking screws, and add your preferred 2\" eyepiece to the diagonal. You can then use the ESATTO to achieve perfect focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab visual back scratch my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to prevent damage. The adapter features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e that tightens uniformly around the accessory barrel. This avoids the direct metal-on-metal contact of a simple thumbscrew, which can scratch and mar your equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the PrimaLuceLab 2\" Visual Back hold a heavy camera for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The combination of the secure M56 thread connection and the \u003cstrong\u003ethree locking screws\u003c\/strong\u003e provides a very rigid and stable hold. This system is designed to support the weight of typical imaging setups, including DSLRs or dedicated astronomy cameras with filter wheels, without introducing tilt or flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with the PrimaLuceLab ARCO 2\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This 2\" visual back threads into the M56 port on the ARCO 2\" rotator, allowing you to use 2\" accessories with it. This is useful for attaching a camera with a 2\" nosepiece or for visual use through the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to place my camera further from the ESATTO 2\". Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this visual back adds minimal optical length. If you need to increase the distance between your focuser and camera to achieve focus, you should use an \u003cstrong\u003eM56 extension tube\u003c\/strong\u003e, which is designed specifically for that purpose within the PrimaLuceLab system.\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\/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":44967863320861,"sku":"PLL-PL8410001","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-2-visual-back-for-ESATTO-2__03505.1617396016.1280.1280.jpg?v=1684346177"},{"product_id":"primalucelab-adapter-esatto-2-for-telescopes-with-sc-thread","title":"PrimaLuceLab Adapter ESATTO 2\" for Telescopes with SC Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" Motorized Focuser to SC Telescope Threads\u003c\/li\u003e\n\u003cli\u003eAdds 0mm of Optical Thickness to the Imaging Train\u003c\/li\u003e\n\u003cli\u003eCompatible with Celestron SCT and EdgeHD 800 Models\u003c\/li\u003e\n\u003cli\u003eEnables Precise External Focusing to Eliminate Mirror Shift\u003c\/li\u003e\n\u003cli\u003ePreserves Back Focus for Focal Reducers 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\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 Adapter ESATTO 2\" for Telescopes with SC Thread\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter for ESATTO 2\" connects the focuser directly to the rear cell of popular Schmidt-Cassegrain telescopes like the Celestron C6, C8, C9.25, and EdgeHD 800. This adapter adds exactly 0mm of optical thickness, preserving the ESATTO 2\" focuser's native 67mm profile. This maintains critical back focus for imaging accessories and allows you to bypass the telescope's internal mechanics for repeatable, shift-free focusing.\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\u003eConnect the ESATTO 2\" to C8, C9.25 \u0026amp; EdgeHD 800 Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides a robust, direct-thread connection between the ESATTO 2\" robotic focuser and the standard 2\" Schmidt-Cassegrain thread found on the rear cell of many popular telescopes. It is specifically designed for a secure, perfectly aligned fit on models including the Celestron C6, C8, C9.25, and the EdgeHD 800, transforming them into precise imaging instruments.\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 0mm Back Focus Design to Preserve Critical Optical Path\u003c\/h3\u003e\n\u003cp\u003eBack focus is a finite resource, especially on SCTs equipped with focal reducers. This adapter is engineered to consume none of it. By fitting internally into the ESATTO 2\" focuser body, it adds no length to the optical path, ensuring the entire 67mm of the ESATTO's thickness is all you add to your imaging train. This intelligent design leaves you the maximum possible back focus for connecting focal reducers, off-axis guiders, filter wheels, and your camera.\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\u003eBypass Mirror Shift on f\/10 Schmidt-Cassegrains\u003c\/h3\u003e\n\u003cp\u003eThe primary reason to add an external focuser to an SCT is to eliminate mirror shift and flop caused by the primary mirror focusing mechanism. This adapter allows you to install the ESATTO 2\", lock the telescope's primary mirror in place, and achieve incredibly fine and repeatable focus externally. The result is consistently sharper stars, improved autofocus accuracy, and the elimination of frustrating image shift during a focusing routine.\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\"\u003eWhich telescopes work with the PrimaLuceLab ESATTO 2\" SC Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed for any telescope with a standard 2\" SC male thread on the rear cell. It is confirmed to be compatible with popular models like the \u003cstrong\u003eCelestron C6, C8, C9.25, and the EdgeHD 800\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this ESATTO 2\" adapter use up my available back focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it will not. The adapter is designed to fit inside the body of the ESATTO 2\" focuser, meaning it adds \u003cstrong\u003e0mm of optical thickness\u003c\/strong\u003e to your imaging train. This is critical for preserving precious back focus for accessories like focal reducers and cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter help with mirror shift on my Celestron C9.25 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy allowing you to attach the ESATTO 2\" focuser, you no longer need to use the telescope's main focusing knob, which moves the primary mirror. You can lock the primary mirror in place (if your scope has mirror locks) and use the ESATTO for all focusing adjustments. This completely bypasses the source of mirror shift, resulting in a stable and repeatable focus point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my f\/6.3 focal reducer on an EdgeHD 800 with this setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. After attaching the ESATTO 2\" to your EdgeHD 800 with this adapter, you can add the PrimaLuceLab SC thread adapter (PL3600225) to the drawtube of the ESATTO. This provides the necessary SC thread to attach your f\/6.3 reducer, followed by your camera at the correct spacing.\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 a 2\" diagonal or camera to the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnce this adapter is installed, you will need the \u003cstrong\u003ePrimaLuceLab 2\" Visual Back (PL8410001)\u003c\/strong\u003e. This threads onto the M56 drawtube of the ESATTO 2\" and provides a standard 2\" opening with a non-marring brass compression ring to securely hold your diagonal, eyepiece, or camera nosepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with the ESATTO 3\" or 4\" models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed to fit the mechanical and optical profile of the \u003cstrong\u003eESATTO 2\" robotic focuser\u003c\/strong\u003e only. Different adapters are required for the larger ESATTO models.\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\u003ePrimaLuceLab ESATTO 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eStandard 2\" Schmidt-Cassegrain (SC) Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron C6, C8, C9.25, EdgeHD 800, and other SC telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdded Optical Thickness\u003c\/td\u003e\n\u003ctd\u003e0mm\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\"\u003eAdapter ESATTO 2\" for Telescopes with SC Thread\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\/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":44967863517469,"sku":"PLL-PL3600209","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-telescopes-with-SC-thread__47821.1617396016.1280.1280.jpg?v=1684346178"},{"product_id":"primalucelab-adapter-esatto-2-for-telescopes-with-large-3-3-sc-thread","title":"PrimaLuceLab Adapter ESATTO 2\" for Telescopes with Large 3.3\" SC Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" focuser to large 3.3\" SC threads\u003c\/li\u003e\n\u003cli\u003eDesigned for Celestron 9.25\", 11\", and 14\" SCT \u0026amp; EdgeHD telescopes\u003c\/li\u003e\n\u003cli\u003eUltra-thin 2mm optical thickness consumes minimal backfocus\u003c\/li\u003e\n\u003cli\u003eLeaves 77mm of backfocus available for your imaging train\u003c\/li\u003e\n\u003cli\u003eCompatible with Celestron's 0.7x focal reducers for EdgeHD models\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\u003ePrimaLuceLab Adapter ESATTO 2\" for Telescopes with Large 3.3\" SC Thread\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter for ESATTO 2\" creates a secure, threaded connection between your robotic focuser and the large 3.3\" rear cell port on Celestron 9.25\", 11\", and 14\" SCT and EdgeHD telescopes. With an ultra-thin 2mm optical thickness, this adapter preserves a critical 77mm of backfocus, ensuring you have ample space for a full imaging train including off-axis guiders, filter wheels, and cameras, even when using a 0.7x reducer.\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\u003eSecurely Connect Your ESATTO 2\" to Large Celestron 3.3\" SCTs\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the essential component for integrating the ESATTO 2\" microfocuser with Celestron's larger Schmidt-Cassegrain and EdgeHD telescopes. It threads directly onto the 3.3\" rear cell, providing a rigid, non-flexing foundation for your entire imaging system. This eliminates the instability that can arise from stacked, generic adapters, ensuring your focuser and camera are perfectly aligned with the telescope's optical axis.\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\u003eMaintain 77mm of Backfocus with a 2mm Optical Profile\u003c\/h3\u003e\n\u003cp\u003eBackfocus is a critical resource, especially when using focal reducers. The ESATTO 2\" focuser has a body depth of 67mm, and this adapter adds only 2mm to the optical path. This minimal profile is crucial for leaving 77mm of available backfocus for your equipment. You can confidently assemble a complete imaging train for your EdgeHD 925, 1100, or 1400, including the Celestron 0.7x reducer, without running out of spacing.\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 telescopes is the PrimaLuceLab 3.3\" SC adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for Celestron telescopes that use the large 3.3\" rear cell thread. This includes the \u003cstrong\u003eCelestron SCT (11\" and 14\")\u003c\/strong\u003e and \u003cstrong\u003eEdgeHD (9.25\", 11\", and 14\")\u003c\/strong\u003e models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much backfocus will I have left after installing the ESATTO 2\" with this 3.3\" SC adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will have \u003cstrong\u003e77mm of available backfocus\u003c\/strong\u003e. The ESATTO 2\" focuser itself has a 67mm body depth, and this adapter adds only 2mm of optical thickness, consuming a total of 69mm from your telescope's native backfocus distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab 3.3\" adapter with the Celestron 0.7x focal reducer on my EdgeHD 1100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is designed to work perfectly with the Celestron EdgeHD 0.7x focal reducers for the 9.25\", 11\", and 14\" models. The 77mm of remaining backfocus is sufficient to accommodate the reducer's required spacing along with your other imaging accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need this specific adapter for my Celestron 14\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron 14\" SCT uses a large 3.3\" thread on its rear cell, which is different from the standard 2\" SC thread found on smaller models. This PrimaLuceLab adapter provides the correct threading for a direct, secure attachment of the ESATTO 2\" focuser, ensuring a stable and perfectly aligned connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add any flexure to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. As a single, machined piece that threads directly onto the telescope and the focuser, this adapter is designed to be a rigid component of your optical train. It eliminates a common source of flexure that can occur when stacking multiple smaller adapters to achieve the same connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Celestron 8\" EdgeHD, is this the right adapter for my ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is not correct for an 8\" SCT or EdgeHD. Those telescopes use a smaller, standard 2\" SC thread. You will need the PrimaLuceLab \"Adapter ESATTO 2\" for telescopes with SC thread\" (PL3600210) for that model.\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\u003eConnection to Focuser\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection to Telescope\u003c\/td\u003e\n\u003ctd\u003eLarge 3.3\" SC Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Thickness\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescopes\u003c\/td\u003e\n\u003ctd\u003eCelestron SCT (11\", 14\") \u0026amp; EdgeHD (9.25\", 11\", 14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResulting Backfocus (with ESATTO 2\")\u003c\/td\u003e\n\u003ctd\u003e77mm\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\"\u003eAdapter ESATTO 2\" for Telescopes with Large 3.3\" SC Thread\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\/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":44967863779613,"sku":"PLL-PL3600212","price":91.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-telescopes-with-large-3-3-SC-thread__92885.1617396016.1280.1280.jpg?v=1684346180"},{"product_id":"primalucelab-adapter-esatto-2-for-sky-watcher-orion-newton-200-f4-and-f5","title":"PrimaLuceLab Adapter ESATTO 2\" for Sky-Watcher\/Orion Newton 200 f4 and f5","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" focusers to Sky-Watcher\/Orion 200mm f\/4 and f\/5 Newtonians\u003c\/li\u003e\n\u003cli\u003eMaintains original focuser thickness to ensure prime focus is reachable\u003c\/li\u003e\n\u003cli\u003eUses existing mounting holes—no drilling required on your optical tube\u003c\/li\u003e\n\u003cli\u003eIntegrated orthogonality adjustment screws for precise optical alignment\u003c\/li\u003e\n\u003cli\u003eDesigned for a rigid, stable connection 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\u003ePrimaLuceLab Adapter ESATTO 2\" for Sky-Watcher\/Orion Newton 200 f4 and f5\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides a mechanically precise, bolt-on solution for upgrading your Sky-Watcher or Orion 200mm f\/4 or f\/5 Newtonian reflector with the robotic ESATTO 2\" focuser. It is engineered to replace the telescope's original focuser without requiring any modification to the optical tube. The design preserves the stock focuser's height, ensuring your camera can reliably reach prime focus for 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\u003eA Precision Drop-In Upgrade for Sky-Watcher\/Orion Newtonians\u003c\/h3\u003e\n\u003cp\u003eUpgrading your Newtonian's focuser for imaging demands mechanical precision, and this adapter is designed to eliminate common integration challenges. It mounts directly to the existing holes on your telescope's tube, so you won't need to drill new holes or risk damaging your OTA. This preserves the integrity and resale value of your instrument.\u003c\/p\u003e\n\u003cp\u003eFor critical imaging applications, the adapter includes screws for adjusting the focuser's orthogonality. This allows you to perfectly square the ESATTO 2\" focuser to your telescope's optical axis, a crucial step for achieving sharp, coma-free stars across the entire field of view, especially with fast f\/4 and f\/5 systems.\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 PrimaLuceLab Adapter for ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to physically connect the PrimaLuceLab \u003cstrong\u003eESATTO 2\" robotic focuser\u003c\/strong\u003e to specific telescope models—namely the \u003cstrong\u003eSky-Watcher and Orion 200mm f\/4 and f\/5 Newtonian reflectors\u003c\/strong\u003e. It ensures a rigid, perfectly aligned fit, replacing the factory focuser for high-precision astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to drill new holes in my Sky-Watcher Newtonian to install this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e The adapter is engineered to match the existing mounting hole pattern on the optical tube of the specified Sky-Watcher and Orion Newtonians. This allows for a direct, \"drop-in\" installation without any permanent modification to your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I be able to reach prime focus with my camera using this ESATTO 2\" adapter on my f\/4 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The adapter is designed to have the same optical thickness as the original focuser it replaces. This means the focal plane position remains unchanged, allowing you to easily achieve prime focus with your existing camera and imaging train configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this PrimaLuceLab adapter help with collimating my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter includes built-in \u003cstrong\u003eorthogonality adjustment screws\u003c\/strong\u003e. These allow you to make fine adjustments to the tilt of the ESATTO 2\" focuser relative to the telescope's optical axis. This is critical for ensuring your camera sensor is perfectly perpendicular to the light path, which minimizes star distortion at the edges of your images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescope models is this ESATTO 2\" adapter specifically designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically made for \u003cstrong\u003eSky-Watcher 200mm (8\") f\/4 and f\/5 Newtonian reflectors\u003c\/strong\u003e and the equivalent models sold under the \u003cstrong\u003eOrion\u003c\/strong\u003e brand. It is not a universal adapter and may not fit other telescope models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ESATTO 2\" focuser visually on my Orion Newtonian with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Once the ESATTO 2\" focuser is installed using this adapter, you can use it for visual observing. You will need a separate accessory, such as the \u003cstrong\u003ePrimaLuceLab 2\" visual back\u003c\/strong\u003e, which threads into the ESATTO's drawtube and allows you to insert standard 2\" eyepieces and diagonals.\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\/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":44967863943453,"sku":"PLL-PL3600229","price":231.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-SkyWatcher-Orion-Newton-200-f4-and-f5__43812.1617396016.1280.1280.jpg?v=1684346182"},{"product_id":"primalucelab-adapter-esatto-2-for-sky-watcher-orion-newton-250-f4-and-f5","title":"PrimaLuceLab Adapter ESATTO 2\" for Sky-Watcher\/Orion Newton 250 f4 and f5","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables installation of the ESATTO 2\" motorized focuser\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Sky-Watcher\/Orion Newton 250 f\/4 and f\/5 telescopes\u003c\/li\u003e\n\u003cli\u003eMaintains the original back focus distance to ensure prime focus for imaging\u003c\/li\u003e\n\u003cli\u003eUses existing mounting holes on the optical tube—no drilling required\u003c\/li\u003e\n\u003cli\u003eFeatures orthogonality adjustment screws for precise focuser collimation\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\u003ePrimaLuceLab Adapter for ESATTO 2\" on Sky-Watcher\/Orion Newton 250 f\/4 \u0026amp; f\/5\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter provides the essential mechanical link to upgrade your Sky-Watcher or Orion 250mm f\/4 or f\/5 Newtonian reflector with the precision of an ESATTO 2\" robotic focuser. Engineered for a perfect fit, it replaces the telescope's original focuser using the existing mounting holes, allowing you to achieve automated, repeatable focusing for serious astrophotography without permanently modifying your optical tube.\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\u003eCustom-Fit for Sky-Watcher\/Orion 250mm OTAs\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is not a universal part; it is purpose-built for the tube curvature and mounting pattern of the Sky-Watcher and Orion 250mm f\/4 and f\/5 Newtonian telescopes. This dedicated design ensures a rigid, stable connection between your heavy imaging train and the telescope body. Because it aligns perfectly with the factory-drilled holes, installation is a straightforward bolt-on process that requires no new drilling into your OTA.\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\u003ePrime Focus and Orthogonality Control for Astrophotography\u003c\/h3\u003e\n      \u003cp\u003eTwo critical challenges in imaging are addressed by this adapter's design. It is machined to match the thickness of the original stock focuser, ensuring that you can reach prime focus with your astronomy camera. Furthermore, it incorporates orthogonality adjustment screws, allowing you to precisely collimate the focuser's drawtube so it is perfectly perpendicular to the telescope's optical axis. This capability is vital for achieving sharp, pinpoint stars across the entire field of view, especially in fast f\/4 and f\/5 optical systems.\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\"\u003eWhy do I need this specific PrimaLuceLab adapter for my Sky-Watcher 250mm Newtonian and the ESATTO 2\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is engineered for the specific mounting hole pattern and tube curvature of the Sky-Watcher\/Orion 250mm f\/4 and f\/5 models. It ensures you can reach prime focus with your camera and provides critical orthogonality (tilt) adjustments for sharp, round stars across your imaging sensor.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I have to drill new holes in my telescope tube to install this ESATTO 2\" adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. A key feature of this adapter is that it uses the existing, factory-drilled holes from the original focuser. This allows for a direct, bolt-on installation without any permanent modification to your telescope's optical tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still reach prime focus with my DSLR or dedicated astronomy camera using the ESATTO 2\" and this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The adapter is designed to maintain the same optical path length as the original focuser it replaces. This ensures you have the correct spacing to achieve sharp prime focus with your imaging camera without needing unusual extenders or modifications.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I ensure sharp stars across the field when imaging the Veil Nebula (NGC 6960) with my f\/4 Newtonian and this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe adapter includes \u003cstrong\u003eorthogonality adjustment screws\u003c\/strong\u003e. For a wide target like the Veil Nebula (NGC 6960) in a fast f\/4 system, you must ensure your camera sensor is perfectly perpendicular to the light path. These screws allow you to fine-tune the tilt of the ESATTO 2\" focuser, eliminating elongated stars in the corners of your image.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging the Andromeda Galaxy (M31) with my 250mm f\/5 Newtonian, what is the main benefit of this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main benefit is that it enables the use of the ESATTO 2\" focuser for precise, automated focusing. For a large target like the Andromeda Galaxy (M31), maintaining critical focus throughout an imaging session is key to resolving fine detail in its dust lanes and star-forming regions. This adapter provides the rigid, collimatable foundation needed for that level of automation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab ESATTO 2\" adapter come with the focuser itself?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this product is the adapter only. The ESATTO 2\" robotic focuser must be purchased separately. This adapter provides the custom mechanical interface between that focuser and your specific telescope model.\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\/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":44967863976221,"sku":"PLL-PL3600237","price":231.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-SkyWatcher-Orion-Newton-250-f4-and-f5__40969.1617396017.1280.1280.jpg?v=1684346183"},{"product_id":"primalucelab-adapter-esatto-2-for-sky-watcher-orion-ed80-ed100-and-ed120","title":"PrimaLuceLab Adapter ESATTO 2\" for Sky-Watcher\/Orion ED80, ED100 and ED120","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" Focuser to select refractors\u003c\/li\u003e\n\u003cli\u003eCompatible with Sky-Watcher\/Orion ED80 Apochromatic Refractors\u003c\/li\u003e\n\u003cli\u003eCompatible with Sky-Watcher\/Orion ED100 Apochromatic Refractors\u003c\/li\u003e\n\u003cli\u003eCompatible with Sky-Watcher\/Orion ED120 Apochromatic Refractors\u003c\/li\u003e\n\u003cli\u003eDesigned for Astrophotography Applications\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\u003ePrimaLuceLab Adapter ESATTO 2\" for Sky-Watcher\/Orion ED80, ED100 and ED120\u003c\/h2\u003e\n\u003cp\u003eThis adapter provides the critical mechanical link to upgrade your Sky-Watcher or Orion ED80, ED100, or ED120 refractor with the PrimaLuceLab ESATTO 2\" robotic focuser, engineered to replace the stock focuser for a solid, precise astrophotography connection.\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\u003eEnabling Precision Autofocus on Sky-Watcher ED Apochromats\u003c\/h3\u003e\n\u003cp\u003eThe legendary Sky-Watcher ED doublet refractors are excellent optical platforms for astrophotography, but achieving critical focus is paramount. This adapter allows you to replace the standard focuser with the ESATTO 2\" robotic focuser, unlocking the ability to perform automated, repeatable, and thermally-compensated focusing routines for perfectly sharp stars, image after image.\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 a Seamless Mechanical Fit\u003c\/h3\u003e\n\u003cp\u003eThis component is machined specifically to match the tube assembly of the Sky-Watcher and Orion ED80, ED100, and ED120 refractors. The adapter ensures the ESATTO 2\" focuser bolts on securely, maintaining collimation and mechanical alignment of your imaging train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintains Optical Path Length:\u003c\/strong\u003e The adapter is designed so the ESATTO 2\" focuser combination matches the thickness of the original stock focuser, simplifying the process of reaching focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging Train Consideration:\u003c\/strong\u003e Depending on your specific camera and accessories (like filter wheels or off-axis guiders), you may need to add optional extension tubes to achieve the correct back 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\"\u003eWhat is the purpose of this PrimaLuceLab Adapter for ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is a required mechanical interface that allows you to remove the stock focuser from a \u003cstrong\u003eSky-Watcher or Orion ED80, ED100, or ED120 refractor\u003c\/strong\u003e and securely install a \u003cstrong\u003ePrimaLuceLab ESATTO 2\" robotic focuser\u003c\/strong\u003e in its place. It is essential for upgrading these specific telescopes to a high-precision, automated focusing system for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need other parts to use my camera with the ESATTO 2\" and this adapter on my Orion ED100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePossibly. While this adapter ensures the focuser fits the telescope tube, the final focus position depends on your entire imaging train. Based on your camera's sensor depth, and any accessories like filter wheels or off-axis guiders, you may need to add \u003cstrong\u003eM56 or M68 extension tubes\u003c\/strong\u003e to push the camera out to the focal plane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter necessary to mount an ESATTO 2\" on my Sky-Watcher ED80?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The ESATTO 2\" focuser's native mounting flange is not directly compatible with the optical tube of the Sky-Watcher ED80, ED100, or ED120. This adapter provides the correct bolt pattern and mechanical interface for a secure, stable connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter help with astrophotography on my ED120 while imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy enabling the use of an ESATTO 2\" focuser on your ED120, this adapter is the first step to perfect focus on demanding targets like M31. It allows your control software (like PrimaLuceLab's PLAY) to run autofocus routines, compensating for temperature drops during the night that would otherwise cause your stars to bloat and lose detail in the galaxy's faint dust lanes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter work with any focuser other than the PrimaLuceLab ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically designed and threaded for the PrimaLuceLab ESATTO 2\" robotic focuser only. It will not work with focusers from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the installation of this adapter on my Sky-Watcher ED100 reversible?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter uses the existing mounting points on the telescope tube. No permanent modification to your telescope is required. You can remove the adapter and the ESATTO focuser and reinstall the original stock focuser at any time.\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\u003ePrimaLuceLab ESATTO 2\" Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eSky-Watcher\/Orion ED80, ED100, ED120 Apochromatic Refractors\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\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":44967864041757,"sku":"PLL-PL3600230","price":203.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-SkyWatcher-Orion-ED80-ED100-and-ED120__24915.1617396017.1280.1280.jpg?v=1684346185"},{"product_id":"primalucelab-adapter-esatto-2-for-gso-orion-tpo-ritchey-chretien-6-and-8","title":"PrimaLuceLab Adapter ESATTO 2\" for GSO\/Orion\/TPO Ritchey-Chretien 6 and 8\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" Robotic Focuser to select Ritchey-Chretien telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with GSO, Orion, and TPO 6\" (152mm) and 8\" (203mm) RC models\u003c\/li\u003e\n\u003cli\u003eEnables high-precision, automated focusing for astrophotography\u003c\/li\u003e\n\u003cli\u003eDesigned for a direct, secure fit to the telescope's rear cell\u003c\/li\u003e\n\u003cli\u003eFeatures a brass compression ring to prevent scratching 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\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 Adapter for ESATTO 2\" on GSO\/Orion\/TPO 6\" \u0026amp; 8\" RC Telescopes\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential mechanical link for upgrading your GSO, Orion, or TPO 6\" or 8\" Ritchey-Chretien telescope with the high-precision ESATTO 2\" robotic focuser. It is designed specifically for the popular 152mm f\/9 and 203mm f\/8 RC models, ensuring a direct and secure fit to the optical tube for serious 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\u003eSeamless ESATTO 2\" Integration for GSO, Orion \u0026amp; TPO RC Telescopes\u003c\/h3\u003e\n\u003cp\u003eUnlock the full imaging potential of your Ritchey-Chretien by replacing the stock focuser with the PrimaLuceLab ESATTO 2\". This adapter creates a solid, stable connection directly to the telescope's rear threads, providing the rigid base needed for automated focusing. You can utilize the standard extension rings that came with your telescope to correctly position the focuser for your specific imaging train.\u003c\/p\u003e\n\u003cp\u003eNote that depending on your camera and any accessories like off-axis guiders or filter wheels, you may require additional M48 or other standard extenders to achieve focus. This adapter is the critical first step in building a powerful, remotely-controlled imaging setup around your RC 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\u003eSecure, Non-Marring Connection for Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003ePrimaLuceLab designed this adapter to not only provide a secure fit but also to protect your valuable equipment. An internal brass compression ring ensures that when you insert a 2\" nosepiece from a camera or visual back, it is held firmly without the risk of scratches from steel set screws. Three locking screws, spaced at 120°, provide a perfectly centered and stable grip on your accessories, preventing any tilt in the optical path.\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\"\u003eWhich telescopes is this PrimaLuceLab ESATTO 2\" adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed to connect the \u003cstrong\u003eESATTO 2\" robotic focuser\u003c\/strong\u003e to \u003cstrong\u003eGSO, Orion, and TPO Ritchey-Chretien telescopes\u003c\/strong\u003e. It is compatible with both the 6-inch (152mm f\/9) and 8-inch (203mm f\/8) models, including both aluminum and carbon fiber tube versions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to mount the ESATTO 2\" on my Orion 8\" RC Carbon Fiber for imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This adapter is the correct component to mount your ESATTO 2\" focuser onto an Orion 8\" Ritchey-Chretien, carbon fiber or aluminum. This setup provides the precise, repeatable focusing required to capture sharp details in the dust lanes and core of the Andromeda Galaxy (M31) during a long imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need extra parts to install the ESATTO 2\" on my GSO RC6 using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides the core connection to the telescope tube. You will reuse the threaded extension rings that came with your GSO RC6 to set the rough focus position. Depending on your specific camera's back focus and any other accessories in your imaging train (like a filter wheel or off-axis guider), you may need additional standard extenders to precisely reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use my GSO RC8 for visual observation with this adapter and an ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use your telescope visually after installing the ESATTO 2\" with this adapter, you will need the \u003cstrong\u003e2\" Visual Back for ESATTO 2\" (PL3600215)\u003c\/strong\u003e. This accessory threads into the M56 drawtube of the ESATTO focuser and allows you to insert standard 2\" diagonals and eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter securely hold my heavy imaging camera and the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is machined to create a rigid, all-threaded connection between the telescope and the ESATTO 2\" focuser. The ESATTO 2\" itself has a 5kg (11 lb) load capacity, and this adapter ensures that connection is robust enough to handle a typical cooled astronomy camera, filter wheel, and off-axis guider without flexure.\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 brass compression ring on this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe internal brass compression ring is a premium feature that protects your equipment. When you tighten the three locking screws, the soft brass ring is what makes contact with your 2\" nosepiece or accessory. This prevents the steel screws from directly digging into and scratching the barrel of your expensive cameras or diagonals.\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\/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":44967864140061,"sku":"PLL-PL3600235","price":111.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-GSO-Orion-TPO-Ritchey-Chretien-6-and-8-inches__70521.1617396017.1280.1280.jpg?v=1684346186"},{"product_id":"primalucelab-adapter-esatto-2-for-borg-55fl-f3-6","title":"PrimaLuceLab Adapter ESATTO 2\" for Borg 55FL f3.6","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 2\" Focuser to Borg 55FL f\/3.6 Telescope\u003c\/li\u003e\n\u003cli\u003eCreates a Secure, Direct-Threaded Connection\u003c\/li\u003e\n\u003cli\u003eEliminates Potential for Tilt and Flexure in the Imaging Train\u003c\/li\u003e\n\u003cli\u003eEnables Precise Robotic Focusing for the Borg 55FL Astrograph\u003c\/li\u003e\n\u003cli\u003eDesigned for Perfect Integration with the PrimaLuceLab Ecosystem\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\u003ePrimaLuceLab Adapter ESATTO 2\" for Borg 55FL f\/3.6\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab Adapter for ESATTO 2\" creates a dedicated, secure threaded interface for attaching the robotic focuser directly to the Borg 55FL f\/3.6 astrograph, enabling precise and repeatable automated focusing for this premium, wide-field instrument.\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 ESATTO 2\" Integration for the Borg 55FL f\/3.6\u003c\/h3\u003e\n      \u003cp\u003eThis adapter allows you to upgrade the exceptional optics of the Borg 55FL f\/3.6 astrograph with the advanced capabilities of the ESATTO 2\" robotic focuser. By creating a solid, direct-thread connection, it fully integrates the telescope into the PrimaLuceLab ecosystem, allowing you to control focus remotely using PLAY software and take advantage of features like automated focusing routines and temperature compensation.\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 Zero-Flexure Connection for f\/3.6 Imaging\u003c\/h3\u003e\n      \u003cp\u003eAn extremely fast optical system like the f\/3.6 Borg 55FL has a razor-thin critical focus zone where any amount of tilt or flexure can ruin an image, causing elongated stars at the edges of the field. This adapter replaces less secure connections, like compression rings or set screws, with a rigid, threaded interface that eliminates a primary source of imaging train tilt.\u003c\/p\u003e\n      \u003cp\u003eFor demanding astrophotography applications, this robust mechanical connection is essential. It ensures your camera sensor remains perfectly orthogonal to the optical axis, preserving the flat-field, pinpoint star performance the Borg 55FL is known for, even during long exposures or meridian flips.\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\"\u003eWhy do I need this specific PrimaLuceLab adapter for my Borg 55FL f\/3.6 and ESATTO 2\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is engineered to provide a \u003cstrong\u003edirect-threaded, zero-flexure connection\u003c\/strong\u003e between the ESATTO 2\" focuser and the Borg 55FL f\/3.6 telescope body. This is critical for fast optical systems where any tilt can degrade image sharpness. It also ensures the correct mechanical spacing and alignment within your imaging train.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a generic 2\" adapter with my ESATTO 2\" and Borg 55FL?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile a generic adapter might physically fit, it will likely use a compression ring or set screws, which are prone to introducing tilt and flexure. For an f\/3.6 astrograph, this is unacceptable for serious imaging. This dedicated adapter provides the rigid, threaded connection required to maintain optical alignment and achieve sharp stars across the entire frame.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this PrimaLuceLab adapter allow me to control my Borg 55FL focuser with PLAY software?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. By securely connecting the ESATTO 2\" focuser to your Borg 55FL, this adapter enables full control of the focusing system through PrimaLuceLab's \u003cstrong\u003ePLAY software\u003c\/strong\u003e. This unlocks capabilities like remote operation, temperature-compensated focusing, and integration with other PrimaLuceLab devices.\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 adding an ESATTO 2\" to a Borg 55FL astrograph?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary benefit is achieving \u003cstrong\u003eprecise, automated, and repeatable focusing\u003c\/strong\u003e. The ESATTO 2\" allows for incredibly fine focus adjustments that are essential for maximizing the performance of the Borg 55FL's fast f\/3.6 optics. It eliminates focus shift from temperature changes and allows you to maintain perfect focus throughout an imaging session without touching the telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter maintain the correct back focus for my Borg 55FL f\/3.6 imaging train?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed as a direct mechanical interface between the ESATTO 2\" and the Borg 55FL. You will still need to use the appropriate spacers and extenders between the focuser and your camera to achieve the specific back focus distance required by your complete optical configuration (including any flatteners or reducers).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter improve my imaging results on the North American Nebula (NGC 7000) with the Borg 55FL?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhen imaging a large, faint object like the North American Nebula (NGC 7000) with the wide field of the Borg 55FL, edge-to-edge sharpness is critical. This adapter ensures your entire imaging train is rigid, preventing tilt that could make stars in one corner of the nebula appear soft or elongated while others are sharp. This mechanical stability is key to getting the most out of your high-end optics.\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\u003eSpecifications\u003c\/td\u003e\n\u003ctd\u003eNo specifications provided by the manufacturer.\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\"\u003eContents\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003eNo contents list provided by the manufacturer.\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\/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":44967864205597,"sku":"PLL-PL3600248","price":833.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-Borg-55FL-f3-6__90190.1617396017.1280.1280.jpg?v=1684346188"},{"product_id":"primalucelab-adapter-esatto-2-for-takahashi-fs-60q","title":"PrimaLuceLab Adapter ESATTO 2\" for Takahashi FS-60Q","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects PrimaLuceLab ESATTO 2\" Focuser to Takahashi FS-60Q Telescopes\u003c\/li\u003e\n\u003cli\u003eAdds Only 5mm of Optical Thickness to the Imaging Train\u003c\/li\u003e\n\u003cli\u003eEnables High-Precision, Motorized Focusing\u003c\/li\u003e\n\u003cli\u003eCNC-Machined for a Rigid, No-Flexure Connection\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\u003ePrimaLuceLab Adapter for ESATTO 2\" to Takahashi FS-60Q\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab Adapter seamlessly connects the ESATTO 2\" robotic focuser to your Takahashi FS-60Q telescope, adding only 5mm of optical path length. It replaces the stock focuser interface, providing a rigid, secure platform for unlocking automated, high-precision focusing on one of the world's premier wide-field refractors.\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 5mm Adapter for Precise ESATTO 2\" Integration\u003c\/h3\u003e\n      \u003cp\u003eEngineered specifically for the Takahashi FS-60Q, this adapter ensures a perfect mechanical and optical union with the ESATTO 2\" focuser. Its minimal 5mm optical thickness is designed to conserve precious back focus, a critical factor in complex imaging trains. This allows for more flexibility when adding accessories like filter wheels, rotators, or off-axis guiders.\u003c\/p\u003e\n      \u003cp\u003eThe adapter is CNC-machined to provide a zero-flexure connection point, ensuring that the optical axis remains perfectly aligned under the weight of the focuser and a heavy camera. Depending on your specific camera and accessory configuration, you may require additional extenders to reach focus, a standard consideration when retrofitting focusers.\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\u003eUnlocking Automated Astrophotography on the FS-60Q\u003c\/h3\u003e\n      \u003cp\u003eThe true value of this adapter is the capability it unlocks. By installing an ESATTO 2\" focuser, you transform the manual FS-60Q into an automated imaging instrument. This enables critical astrophotography functions like temperature-compensated focusing, remote focus adjustments, and integration into the full PrimaLuceLab ecosystem via PLAY software and the EAGLE computer.\u003c\/p\u003e\n      \u003cp\u003eFor a premium instrument like the FS-60Q, achieving perfect focus is non-negotiable. This adapter is the key to moving beyond manual adjustments, allowing software to maintain critical focus throughout an entire imaging session as ambient temperature changes. The result is consistently sharper stars and more detailed images from start to finish.\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 primary function of this PrimaLuceLab ESATTO 2\" adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is a custom-machined ring that allows you to securely attach a PrimaLuceLab ESATTO 2\" motorized focuser to a Takahashi FS-60Q telescope, replacing the telescope's original focuser interface.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I add an ESATTO 2\" focuser to my Takahashi FS-60Q?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eUpgrading to an ESATTO 2\" focuser provides robotic, high-precision focusing for astrophotography. This allows for \u003cstrong\u003eautomated temperature compensation\u003c\/strong\u003e to keep stars sharp all night, \u003cstrong\u003eremote focus control\u003c\/strong\u003e from a computer, and the ability to achieve a level of repeatable accuracy that is difficult to match with manual focusing.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need extenders to reach focus with this ESATTO 2\" adapter on my FS-60Q?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003ePossibly. The adapter itself adds only \u003cstrong\u003e5mm of optical thickness\u003c\/strong\u003e. However, because the ESATTO 2\" has a different physical profile than the stock focuser, you may need to add standard M56 or 2\" extension tubes to place your camera at the correct focal plane. This depends entirely on your specific camera and any other accessories in your imaging train.\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\" focuser via this adapter with my existing software?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The adapter is a purely mechanical part and does not interfere with software control. Once the ESATTO 2\" is installed on your FS-60Q using this adapter, you can control it via its standard USB or WiFi connection using PrimaLuceLab's PLAY software, ASCOM drivers, or other compatible platforms.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter improve imaging the Moon with a Takahashi FS-60Q?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor high-resolution lunar imaging, achieving critical focus is paramount. The Takahashi FS-60Q offers sharp optics, and adding an ESATTO 2\" focuser via this adapter allows you to make incredibly fine, repeatable focus adjustments from your computer screen. This eliminates vibrations from touching the telescope and lets you dial in perfect focus on craters and rilles with precision.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI want to image the North America Nebula (NGC 7000) with my FS-60Q. Will this adapter maintain rigidity?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. This adapter is CNC-machined from a solid block of aluminum to create a rigid, flex-free connection between the FS-60Q's optical tube and the ESATTO 2\" focuser. It is designed to support the weight of the focuser plus a typical astrophotography camera and filter wheel without any sag or tilt, which is essential for long-exposure imaging of faint targets like NGC 7000.\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\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eTakahashi FS-60Q\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Thickness\u003c\/td\u003e\n\u003ctd\u003e5mm\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\"\u003eAdapter ESATTO 2\" for Takahashi FS-60Q\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\/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":44967864336669,"sku":"PLL-PL3600255","price":203.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-2-for-Takahashi-FS-60Q__47798.1617396018.1280.1280.jpg?v=1684346191"},{"product_id":"primalucelab-m56-15mm-extension-tube-for-esatto-2","title":"PrimaLuceLab M56 15mm Extension Tube for ESATTO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fixed 15mm extension for precise back focus\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 2\" focuser\u003c\/li\u003e\n\u003cli\u003eFeatures M56 male and female threads for direct connection\u003c\/li\u003e\n\u003cli\u003eDurable, black anodized aluminum construction\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\u003ePrimaLuceLab M56 15mm Extension Tube for ESATTO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab M56 15mm Extension Tube provides a fixed 15mm of spacing, allowing you to achieve the correct back focus with your ESATTO 2\" robotic focuser. It threads directly onto the ESATTO 2\" draw tube's M56 threads, enabling a secure connection to camera adapters and other accessories in 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\u003eAchieve Precise 15mm Spacing for the ESATTO 2\" Focuser\u003c\/h3\u003e\n\u003cp\u003eWhen your imaging train—composed of components like an off-axis guider, filter wheel, or adaptive optics unit—requires more back focus than your telescope provides, a rigid extension is essential. This tube adds exactly 15mm of length, allowing you to correctly position your camera sensor at the focal plane without over-extending the focuser's drawtube, which preserves mechanical rigidity and minimizes potential tilt.\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\u003eM56 Threads for Seamless PrimaLuceLab Ecosystem Integration\u003c\/h3\u003e\n\u003cp\u003eEngineered to integrate perfectly with PrimaLuceLab hardware, this extension features male M56 threads on one side to connect to the ESATTO 2\" draw tube and female M56 threads on the other. This allows you to attach any of PrimaLuceLab's ESATTO 2\" camera adapters or the 2\" visual back. The black anodized aluminum construction ensures durability and matches the finish of other PrimaLuceLab components.\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\"\u003eWhen do I need the PrimaLuceLab M56 15mm Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this \u003cstrong\u003e15mm extension tube\u003c\/strong\u003e when your camera and accessories require a specific back focus distance that cannot be reached with your standard setup. It's commonly used to push the camera sensor further away from the focuser to accommodate reducers, flatteners, or off-axis guiders that have strict spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this 15mm extension connect to the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extension tube threads directly onto the \u003cstrong\u003eM56 male thread\u003c\/strong\u003e of the ESATTO 2\" focuser's draw tube. The other side of the extension provides an M56 female thread, allowing you to connect your existing ESATTO 2\" camera adapters or other M56-threaded accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple M56 15mm extension tubes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can thread multiple extensions together to create longer spacing (e.g., two tubes for 30mm). However, be mindful that each added connection increases the length of the imaging train, which can introduce flexure. For longer distances, a single, longer extension is generally preferred for maximum rigidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this M56 extension compatible with focusers other than the ESATTO 2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed specifically for the \u003cstrong\u003ePrimaLuceLab ESATTO 2\"\u003c\/strong\u003e, it may be compatible with other focusers or accessories that use a standard M56 x 1mm thread. However, compatibility and correct spacing are only guaranteed within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the M56 15mm extension help me reach focus with an OAG on my Sky-Watcher Esprit 100?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case. An off-axis guider (OAG) often consumes significant back focus. If adding your OAG and camera to the ESATTO 2\" on your Esprit 100 leaves you short of the required spacing, this \u003cstrong\u003e15mm extension\u003c\/strong\u003e can provide the extra distance needed to bring both the main camera and guide camera to a sharp focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use this 15mm extension instead of just extending the ESATTO 2\" draw tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing a fixed extension keeps the focuser's draw tube more retracted. A more retracted draw tube is mechanically stiffer and less prone to tilt or sag, especially with a heavy imaging payload. This \u003cstrong\u003eM56 15mm extension\u003c\/strong\u003e ensures your focuser operates in its most rigid range, improving the overall stability of your optical system.\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 Type\u003c\/td\u003e\n\u003ctd\u003eExtension Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 2\" Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM56 x 1mm (Male and Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Aluminum\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\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":44967864369437,"sku":"PLL-PL3600286","price":63.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M56-15mm-extension-tube-for-ESATTO-2__18608.1617396018.1280.1280.jpg?v=1684346193"},{"product_id":"primalucelab-adapter-from-m81-to-t2-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to T2 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the M81 male thread of ESATTO 3\" or ARCO 3\" systems to a standard T2 (M42x0.75) female thread\u003c\/li\u003e\n\u003cli\u003eEnables direct connection of T2-threaded cameras, filter wheels, and off-axis guiders\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational adjustment of your imaging train\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for maintaining optical alignment\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\u003ePrimaLuceLab Adapter from M81 to T2 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential connection between the large M81 thread of the ESATTO 3\" robotic focuser or ARCO 3\" rotator and the universally common T2 (M42x0.75) thread used by most dedicated astronomy cameras and accessories. It's a fundamental component for integrating your existing T2-based imaging train with PrimaLuceLab's large-format focusers, ensuring a solid and direct-threaded connection.\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\u003eM81 to T2 Thread Conversion for ESATTO 3\" \u0026amp; ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThe primary function of this adapter is to bridge the gap between two critical standards. It allows you to securely attach your T2-threaded camera, filter wheel, or off-axis guider directly to the robust M81 drawtube of your ESATTO 3\" or ARCO 3\", bypassing the potential flexure of compression fittings. This direct-thread approach is critical for maintaining the strict optical alignment required for high-resolution imaging, especially with heavy equipment trains.\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\u003ePrecise Framing Control with the T2 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eBeyond simple adaptation, this unit includes a crucial stop ring for rotational control. Once your camera is threaded on, you can slightly loosen the stop ring, rotate the entire imaging train to achieve perfect framing on your target, and then lock it down without losing focus or alignment. This feature is indispensable for composing images of elongated objects like the Andromeda Galaxy (M31) or the Pleiades cluster (M45) to match your sensor's orientation.\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 primary purpose of the PrimaLuceLab M81 to T2 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts main purpose is to allow you to connect any astrophotography accessory with a standard \u003cstrong\u003eT2 (M42x0.75) female thread\u003c\/strong\u003e to the large \u003cstrong\u003eM81 male thread\u003c\/strong\u003e found on the drawtube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. This makes the focuser compatible with a vast ecosystem of cameras, filter wheels, and guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this adapter help when imaging a target like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring gives you precise rotational control over your camera. For a large target like the Orion Nebula (M42), you can orient your camera sensor to capture the full extent of the nebula and the Running Man Nebula in a single frame. You simply thread the adapter on, loosen the stop ring, rotate your camera to the desired angle, and then tighten the ring to lock the position securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this PrimaLuceLab adapter compatible with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003eM81x1 thread\u003c\/strong\u003e of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. While it might physically thread onto other focusers with an M81 thread, correct spacing and compatibility are only guaranteed with the intended PrimaLuceLab products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the M81 to T2 adapter cause vignetting with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a potential trade-off. The T2 thread has a smaller clear aperture than the M81 thread of the ESATTO 3\" focuser. While it is perfect for cameras with smaller sensors (like APS-C or Four Thirds), stepping down to the T2 format will likely cause some vignetting on the corners of a full-frame (24x36mm) sensor. For full-frame imaging, you should consider using M48 or larger adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add significant back focus to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to be as thin as possible to consume minimal back focus. While it does add a small amount of optical path length, it is engineered to allow you to reach focus with most standard T2-based camera and accessory combinations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with both the ESATTO 3\" focuser and the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both the ESATTO 3\" focuser and the ARCO 3\" rotator feature the same M81x1 female thread on their drawtubes, making this adapter fully compatible with either device.\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\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967864434973,"sku":"PLL-PL3600282","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-T2-with-stop-ring-for-ESATTO-3__93554.1617396018.1280.1280.jpg?v=1684346195"},{"product_id":"primalucelab-adapter-from-m81-to-m48-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M48 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the M81 female thread of the ESATTO 3\" focuser to a male M48x0.75 thread\u003c\/li\u003e\n\u003cli\u003eAllows direct connection of cameras, filter wheels, and off-axis guiders\u003c\/li\u003e\n\u003cli\u003eIncludes a separate stop ring for precise 360° rotational adjustment\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid connection for your imaging train\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\u003ePrimaLuceLab Adapter from M81 to M48 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential threaded connection between the M81 draw tube of an ESATTO 3\" robotic focuser and the universal M48x0.75 standard used by most astrophotography cameras and accessories. The adapter includes an independent M48 stop ring, allowing you to precisely set and lock your camera's rotation for perfect, repeatable framing of your target.\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\u003eFrom M81 to M48: Native Connection for the ESATTO 3\"\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3\" focuser features a large M81 female thread on its draw tube to ensure a rigid, flex-free connection. This adapter steps that M81 thread down to the common M48 male thread, opening up compatibility with a vast ecosystem of imaging equipment, from DSLRs with M48 T-rings to dedicated astronomy 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\u003ePrecision Framing with the Included M48 Stop Ring\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect composition is critical in astrophotography. This adapter kit includes a separate M48 stop ring that gives you complete rotational control. Simply thread your camera onto the adapter, rotate it to the exact angle you desire, and then tighten the stop ring against your camera's body to lock it securely in place, preventing any unwanted rotation during an imaging session.\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 PrimaLuceLab M81 to M48 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to connect any camera or accessory with a standard \u003cstrong\u003eM48 female thread\u003c\/strong\u003e to the \u003cstrong\u003eM81 female thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator. This makes your high-end focuser compatible with the most common imaging thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this M81 to M48 adapter improve my astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003elock your camera's orientation\u003c\/strong\u003e at any angle. After threading your camera on, you can back it off slightly to get the perfect framing for your target, then tighten the stop ring against the camera to hold that position securely. This is essential for creating mosaics or simply composing your shot precisely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with the ARCO 3\" rotator as well as the ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ARCO 3\" rotator also uses the same M81 thread standard, and this adapter is fully compatible, allowing you to attach your M48-threaded imaging train directly to the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a camera with a 2\" nosepiece, is this the right adapter for my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is for threaded M48 connections. For accessories with a 2\" nosepiece, you will need the specific \u003cstrong\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/strong\u003e, which provides a non-marring compression ring clamp for such items.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use this adapter to perfectly frame a target like the Andromeda Galaxy (M31) with my rectangular sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo frame a large, elongated object like the Andromeda Galaxy (M31), you'll want to align the long axis of your camera sensor with the galaxy. Simply thread the adapter onto your ESATTO 3\", attach your camera, and loosen the stop ring. You can then rotate the entire camera until M31 is framed perfectly in your live view, and then tighten the stop ring to lock that orientation for your imaging run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M81 to M48 adapter on a Ritchey-Chrétien telescope with an ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. If you have an ESATTO 3\" focuser installed on your Ritchey-Chrétien or any other compatible telescope, this adapter provides the standard M48 connection point you need for your flattener\/reducer and camera train. Just be sure to account for the adapter's thickness in your back focus calculations.\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-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM81 x 1 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eThreaded Adapter with Rotational Stop Ring\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\"\u003eM81 to M48 Adapter\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\"\u003eM48 Stop Ring\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\/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":44967864500509,"sku":"PLL-PL3600277","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M48-with-stop-ring-for-ESATTO-3__72243.1617396018.1280.1280.jpg?v=1684346196"},{"product_id":"primalucelab-adapter-from-m81-to-m54-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M54 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M81 Threads to M54 Accessories\u003c\/li\u003e\n\u003cli\u003eAdds a Minimal 4mm of Optical Path\u003c\/li\u003e\n\u003cli\u003eIncludes Stop Ring for Rotational Adjustment\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" and ARCO 3\"\u003c\/li\u003e\n\u003cli\u003eEnables Precise Sensor 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\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 Adapter from M81 to M54 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M54 provides a secure, rigid connection for accessories with an M54 female thread to the M81 draw tube of an ESATTO 3\" or ARCO 3\" unit. Comprised of a 1.5mm adapter and a 2.5mm stop ring, this component adds a total optical length of just 4mm, preserving precious back focus in complex imaging trains.\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 1.5mm Adapter: M81 to M54 Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter's primary function is to convert the large M81 male thread on the ESATTO 3\" or ARCO 3\" draw tube to the widely used M54 male thread. This allows you to directly attach a vast ecosystem of cameras, filter wheels, and off-axis guiders that rely on the M54 standard, ensuring a solid, threaded connection with no flexure.\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 2.5mm Stop Ring for Precise Sensor Alignment\u003c\/h3\u003e\n\u003cp\u003eThe included 2.5mm stop ring is critical for achieving perfect framing. After threading the main adapter onto your focuser, you can back it off slightly to orient your camera sensor to the ideal angle. The stop ring is then tightened against the focuser body, locking the adapter in place and preventing any rotation during an imaging session.\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 total optical length of the PrimaLuceLab M81 to M54 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is composed of the main adapter body, which is \u003cstrong\u003e1.5mm\u003c\/strong\u003e thick, and the stop ring, which is \u003cstrong\u003e2.5mm\u003c\/strong\u003e thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this PrimaLuceLab adapter help with framing a target like the Horsehead Nebula (B33)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to achieve precise rotational framing. You can thread the adapter on, then slightly unscrew it to perfectly align your camera's sensor with the orientation of the nebula. Once positioned, you tighten the stop ring against the ESATTO or ARCO body to lock that angle securely for the duration of your imaging run.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M81 to M54 adapter with the PrimaLuceLab ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is fully compatible with both the \u003cstrong\u003eESATTO 3\" robotic focuser\u003c\/strong\u003e and the \u003cstrong\u003eARCO 3\" robotic rotator\u003c\/strong\u003e. It threads directly into the M81 port on either device.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main purpose of this adapter for my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts purpose is to provide a threaded connection for cameras and accessories that use the common \u003cstrong\u003eM54 female thread\u003c\/strong\u003e. The ESATTO 3\" has a native M81 thread, and this adapter bridges that gap, allowing you to attach your M54-compatible imaging equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy camera has an M54 female thread. Will this PrimaLuceLab adapter connect it to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. It presents a male M54 thread that will connect directly to your camera's M54 female thread, creating a secure, all-threaded imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm connecting a camera with an M54 thread to my ESATTO 3\" on a Ritchey-Chretien telescope. Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is designed for exactly that scenario. It allows you to securely attach your M54-threaded camera to the ESATTO 3\" focuser commonly used on Ritchey-Chretien, Cassegrain, and large refractor 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\u003ctr\u003e\n\u003ctd\u003eInput Thread\u003c\/td\u003e\n\u003ctd\u003eM81\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Thread\u003c\/td\u003e\n\u003ctd\u003eM54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eESATTO 3\", ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Optical Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Optical Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\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\"\u003eAdapter from M81 to M54 with Stop Ring\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\u003cp\u003eThis product does not require specific software or a dedicated manual.\u003c\/p\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":44967864598813,"sku":"PLL-PL3600275","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M54-with-stop-ring-for-ESATTO-3__11735.1617396019.1280.1280.jpg?v=1684346198"},{"product_id":"primalucelab-adapter-from-m81-to-m57-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M57 accessories to M81 threads\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" and ARCO 3\"\u003c\/li\u003e\n\u003cli\u003eAdds only 4mm of optical length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise 360° camera rotation\u003c\/li\u003e\n\u003cli\u003eThreads directly to the focuser or rotator draw tube\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\u003ePrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M57 with Stop Ring for ESATTO 3\" provides a secure, low-profile connection for your imaging train, converting the M81 thread of the focuser drawtube to a standard M57 female thread. This adapter adds only 4mm of total optical length, preserving precious back focus for connecting cameras and accessories like filter wheels or 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\u003eSecure M57 Connection with a 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThis adapter threads directly onto the M81 draw tube of your ESATTO 3\" focuser or ARCO 3\" rotator, providing a robust M57 female thread for your equipment. The assembly consists of the 1.5mm adapter and a 2.5mm stop ring, consuming a minimal 4mm of back focus to maintain compatibility with complex imaging trains.\u003c\/p\u003e\n\u003cp\u003eThe included stop ring is the critical component for precise framing. It allows you to rotate your attached camera to any angle and then lock it securely in place, ensuring your imaging sensor is perfectly aligned with your target without having to unthread your entire camera 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 is the primary function of the PrimaLuceLab M81 to M57 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect any camera or accessory that has a female \u003cstrong\u003eM57 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM81 thread\u003c\/strong\u003e found on the draw tube of the PrimaLuceLab ESATTO 3\" robotic focuser and ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the PrimaLuceLab M81 to M57 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring threads onto the M57 male thread of the adapter before you attach your camera. It acts as a counter-locking mechanism, allowing you to thread your camera on, rotate it to the desired angle for perfect framing, and then tighten the stop ring against the camera body to lock it in that position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical length of the PrimaLuceLab M81 to M57 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is composed of the main adapter body (1.5mm) and the stop ring (2.5mm).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab M81 to M57 adapter with the ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is fully compatible with both the ESATTO 3\" focuser and the ARCO 3\" rotator, as both units use the same M81 female thread on their draw tubes for attaching accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect my camera with an M57 thread to my ESATTO 3\" focuser. Is the PrimaLuceLab M81 to M57 adapter the correct part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact part designed for that purpose. It converts the large M81 thread of the ESATTO 3\" to the widely used M57 thread, allowing you to securely attach your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the PrimaLuceLab M81 to M57 adapter to frame the Andromeda Galaxy (M31) with my rectangular camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is essential for this. After attaching the adapter and your camera to your ESATTO 3\", you can loosen the stop ring slightly, rotate the camera body until the long axis of your sensor aligns with the longest dimension of the Andromeda Galaxy (M31), and then tighten the stop ring to fix the camera in that orientation for your exposure sequence.\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 Side Connection\u003c\/td\u003e\n\u003ctd\u003eM81 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Connection\u003c\/td\u003e\n\u003ctd\u003eM57 Female Thread (via M57 Male thread on adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Body Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", PrimaLuceLab ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eThread reduction and camera rotation\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\"\u003eAdapter from M81 to M57\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\"\u003eM57 Stop Ring\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\/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":44967864762653,"sku":"PLL-PL3600279","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M57-with-stop-ring-for-ESATTO-3__80120.1617396019.1280.1280.jpg?v=1684346200"},{"product_id":"primalucelab-adapter-from-m81-to-m68-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M68 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 threaded accessories to M81x1 threaded focusers\u003c\/li\u003e\n\u003cli\u003eDesigned for the PrimaLuceLab ESATTO 3\" and ARCO 3\" systems\u003c\/li\u003e\n\u003cli\u003eAdds a minimal 4mm of optical path length\u003c\/li\u003e\n\u003cli\u003eIncludes a 2.5mm stop ring for precise camera rotation and framing\u003c\/li\u003e\n\u003cli\u003eMachined aluminum construction with black anodizing\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\u003ePrimaLuceLab Adapter from M81 to M68 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter seamlessly connects your camera or accessories with an M68 female thread to the M81 draw tube of an ESATTO 3\" or ARCO 3\" unit. This adapter assembly adds only 4mm of total optical length, consisting of the 1.5mm adapter body and a separate 2.5mm stop ring. This ultra-thin profile is critical for preserving precious back focus in complex imaging trains, while the stop ring provides precise rotational control for perfect sensor alignment.\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\u003eM81 to M68 Connection: A Minimal 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between the large M81 thread on PrimaLuceLab's 3-inch focusers and the common M68x1 thread standard found on many full-frame cameras, filter wheels, and off-axis guiders. By consuming just 4mm of back focus, it allows you to integrate your M68-threaded equipment without compromising your ability to reach focus with reducers or other corrective optics in the 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\u003eRotational Framing: Lock Your Camera Angle with the 2.5mm Stop Ring\u003c\/h3\u003e\n\u003cp\u003eThe included 2.5mm stop ring is the key to achieving perfect composition. After threading the main 1.5mm adapter onto your focuser, you can back it off slightly to orient your camera sensor to the exact angle you need. You then thread the stop ring up against the adapter to lock it securely in place, ensuring your target is framed exactly as intended without any flexure or rotation during an imaging session.\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 primary use for the PrimaLuceLab M81 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed specifically to connect astrophotography accessories that use a female \u003cstrong\u003eM68x1 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM81x1 thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 3\" robotic focuser or ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this adapter help with astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to \u003cstrong\u003eprecisely set the rotational angle of your camera\u003c\/strong\u003e. You can thread the adapter on, adjust the camera's orientation for the best framing of your target, and then tighten the stop ring against the adapter to lock that position securely. This is crucial for composing images of large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical path added by the PrimaLuceLab M81 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe entire assembly adds a total of \u003cstrong\u003e4mm\u003c\/strong\u003e to your optical path. This is composed of the 1.5mm thick adapter itself and the 2.5mm thick stop ring. This minimal length helps preserve back focus, which is often limited in astrophotography setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed for the ESATTO 3\" and ARCO 3\", it may work with other focusers that have a male M81x1 thread on the draw tube. However, you must verify the thread specification of your focuser to ensure compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a camera with an M68 thread. How do I connect it to my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is the correct component. You simply thread the M81 side of the adapter onto the ESATTO 3\" draw tube, and then thread your M68-equipped camera or accessory onto the other side of the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to perfectly frame the Rosette Nebula (NGC 2244) with my rectangular camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the stop ring is for. You can loosen the adapter, rotate your camera to align the long axis of your sensor with the most interesting dimension of the nebula, and then use the stop ring to lock that orientation in place for your imaging run.\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\u003eAdapter Type\u003c\/td\u003e\n\u003ctd\u003eM81 to M68 Adapter with Stop Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Side Thread\u003c\/td\u003e\n\u003ctd\u003eM81x1 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM68x1 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Body Thickness\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Thickness\u003c\/td\u003e\n\u003ctd\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", ARCO 3\"\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\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":44967864795421,"sku":"PLL-PL3600262","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M68-with-stop-ring-for-ESATTO-3__38126.1617396019.1280.1280.jpg?v=1684346201"},{"product_id":"primalucelab-adapter-from-m81-to-m72-with-stop-ring-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M72 with Stop Ring for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts M81 male threads to M72 female threads\u003c\/li\u003e\n\u003cli\u003eDesigned for PrimaLuceLab ESATTO 3\" focusers and ARCO 3\" rotators\u003c\/li\u003e\n\u003cli\u003eAdds a minimal 4mm of total optical length\u003c\/li\u003e\n\u003cli\u003eIncludes a stop ring for precise, lockable camera rotation\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\u003ePrimaLuceLab Adapter from M81 to M72 with Stop Ring for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter seamlessly connects accessories with an M72 female thread to the large M81 male thread on your ESATTO 3\" robotic focuser or ARCO 3\" camera rotator. With the included stop ring, the complete assembly adds only 4mm of optical length, preserving critical backfocus for complex imaging trains.\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\u003eM81 to M72 Connection for ESATTO 3\" and ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential mechanical link between PrimaLuceLab's large-format focusers and the wide ecosystem of imaging accessories that use the M72 thread standard. It allows you to securely attach field flatteners, reducers, or camera-specific adapters directly to the ESATTO 3\" drawtube for a rigid, flexure-free connection.\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\u003ePrecise Framing with a 4mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eMore than a simple thread converter, this adapter includes a dedicated stop ring for complete rotational control. You can thread your camera on, rotate it to the perfect angle for your target, and then lock it in place with the stop ring, ensuring your composition remains fixed throughout the imaging session. The entire assembly is engineered for a minimal profile, consuming just 4mm of backfocus (1.5mm for the adapter and 2.5mm for the stop ring).\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 primary function of the PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to connect any camera or accessory with a female M72x1 thread to the male M81x1 thread found on the drawtube of the PrimaLuceLab ESATTO 3\" focuser and ARCO 3\" rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this M81 to M72 adapter improve imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring allows you to precisely set and lock the rotational angle of your imaging camera. After threading on your camera, you can adjust its orientation to perfectly frame your target, such as fitting a long galaxy into the sensor's diagonal, and then tighten the stop ring to prevent any rotation during an exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total optical length of the PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total optical length is \u003cstrong\u003e4mm\u003c\/strong\u003e. This is comprised of two parts: the main adapter body, which is \u003cstrong\u003e1.5mm\u003c\/strong\u003e thick, and the stop ring, which is \u003cstrong\u003e2.5mm\u003c\/strong\u003e thick.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed and optimized for the PrimaLuceLab ESATTO 3\" and ARCO 3\", it will technically thread onto any male M81x1 port. However, correct seating and performance are only guaranteed within the PrimaLuceLab ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect my camera with an M72 thread to an ESATTO 3\" on my Ritchey-Chrétien telescope. Is this the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact adapter for your application. It provides a secure M81-to-M72 connection and its minimal 4mm optical length helps preserve the critical backfocus required by most Ritchey-Chrétien optical designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this M81 to M72 adapter help when imaging a large target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a large, elongated object like the Andromeda Galaxy (M31), the stop ring is crucial. It allows you to rotate your camera sensor to align with the galaxy's longest axis, ensuring you capture the full extent of the object within a single frame for optimal 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\u003eMale Thread\u003c\/td\u003e\n\u003ctd\u003eM81x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFemale Thread\u003c\/td\u003e\n\u003ctd\u003eM72x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\", PrimaLuceLab ARCO 3\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Optical Length\u003c\/td\u003e\n\u003ctd\u003e1.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Ring Optical Length\u003c\/td\u003e\n\u003ctd\u003e2.5mm\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\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":44967864828189,"sku":"PLL-PL3600272","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M72-with-stop-ring-for-ESATTO-3__08596.1617396019.1280.1280.jpg?v=1684346203"},{"product_id":"primalucelab-adapter-from-m81-to-m68-female-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 Male Threaded Accessories\u003c\/li\u003e\n\u003cli\u003eAttaches to M81 Female Thread on Focuser\/Rotator\u003c\/li\u003e\n\u003cli\u003eCompatible with ESATTO 3\" Focuser\u003c\/li\u003e\n\u003cli\u003eCompatible with ARCO 3\" Rotator\u003c\/li\u003e\n\u003cli\u003eSolid, All-Metal Construction\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\u003ePrimaLuceLab Adapter from M81 to M68 Female for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M81 to M68 Female creates a direct, secure threaded connection between your ESATTO 3\" robotic focuser or ARCO 3\" rotator and any camera or accessory that uses a male M68x1 thread. This adapter is the essential component for integrating popular M68-format accessories, like field flatteners or off-axis guiders, into your PrimaLuceLab imaging system. It ensures a rigid, non-flexing link in your optical train, critical for sharp, consistent imaging results.\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\u003eSecure M81 to M68 Connection for ESATTO 3\" \u0026amp; ARCO 3\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter threads directly onto the M81 female thread of the ESATTO 3\" focuser's draw tube or the ARCO 3\" rotator. On the other side, it presents a female M68x1 thread, ready to accept your camera, reducer, or other threaded accessory. This single-piece solution eliminates potential points of flexure or misalignment that can occur with multi-part adapters.\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\u003eMaintain a Rigid Imaging Train for M68 Accessories\u003c\/h3\u003e\n\u003cp\u003eFor astrophotography, a rigid optical train is non-negotiable. Using a direct threaded connection like this M81 to M68 adapter prevents the sag and tilt common with slip-fit or compression ring adapters, especially when using heavier cameras or filter wheels. This solid mechanical joint ensures your entire imaging system remains perfectly collinear with the telescope's optical axis from the focuser through to the sensor.\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 primary function of the PrimaLuceLab M81 to M68 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's primary function is to convert the native \u003cstrong\u003eM81 female thread\u003c\/strong\u003e on a PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator to a standard \u003cstrong\u003eM68 female thread\u003c\/strong\u003e. This allows you to securely attach cameras, field flatteners, reducers, and other accessories that use a male M68x1 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich PrimaLuceLab devices is the M81 to M68 Adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for PrimaLuceLab's 3-inch ecosystem. It is fully compatible with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eESATTO 3\" Robotic Microfocuser\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eARCO 3\" Robotic Rotator\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install this M81 to M68 adapter on my ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You simply thread the adapter directly onto the M81 thread located on the end of the ESATTO 3\" focuser's draw tube until it is snug. Your M68-threaded accessory can then be attached to the other side of the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect a camera with a 2\" nosepiece to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is for threaded connections only. To connect an accessory with a 2\" nosepiece, you would need the dedicated \u003cstrong\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/strong\u003e, which provides a compression ring holder instead of an M68 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy imaging train uses an M68 off-axis guider. Is this the right adapter for my PrimaLuceLab ARCO 3\" rotator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. It allows you to securely attach your M68-threaded off-axis guider to the ARCO 3\" rotator, ensuring a solid, repeatable connection that maintains optical alignment as the rotator turns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose this threaded adapter over a universal slip-fit type for my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA threaded connection provides superior rigidity and prevents tilt. For imaging with heavy cameras, filter wheels, or off-axis guiders, a threaded connection is essential to eliminate flexure that can ruin long exposures. This PrimaLuceLab adapter ensures your entire imaging train is securely locked to the focuser.\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\/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":44967864860957,"sku":"PLL-PL3600289","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M68-female-for-ESATTO-3__94172.1641520576.1280.1280.jpg?v=1684346204"},{"product_id":"primalucelab-adapter-from-m81-to-m72-female-for-esatto-3","title":"PrimaLuceLab Adapter from M81 to M72 Female for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M72 male threads to M81 female threads\u003c\/li\u003e\n\u003cli\u003eDesigned for PrimaLuceLab ESATTO 3\" robotic focusers\u003c\/li\u003e\n\u003cli\u003eCompatible with PrimaLuceLab ARCO 3\" robotic rotators\u003c\/li\u003e\n\u003cli\u003eProvides a secure, direct-threaded connection for imaging trains\u003c\/li\u003e\n\u003cli\u003eMachined aluminum with black anodized finish\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\u003ePrimaLuceLab Adapter from M81 to M72 Female for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter creates a robust, native-thread connection between the M81 draw tube of an ESATTO 3\" robotic focuser or ARCO 3\" rotator and any camera or accessory using an M72 male thread. It eliminates potential flexure from slip-fit adapters by providing a rigid, threaded junction essential for supporting heavy imaging 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\u003eSecure M72 Threaded Connection for ESATTO 3\" Focusers\u003c\/h3\u003e\n\u003cp\u003eBy threading directly onto the M81 draw tube of the ESATTO 3\" focuser, this adapter ensures your imaging components are perfectly collinear with the optical axis. This direct-fit approach is critical for astrophotography, where any tilt or sag in the system can compromise image sharpness, especially with large 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\u003eIntegrating Accessories into the PrimaLuceLab Ecosystem\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a key component for integrating non-standard accessories into the PrimaLuceLab ecosystem. It extends compatibility beyond the native M81 thread, allowing you to connect flatteners, reducers, or off-axis guiders that use the M72 standard to both the ESATTO 3\" focuser and the ARCO 3\" rotator for a fully automated imaging 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 is the primary function of the PrimaLuceLab M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to convert the \u003cstrong\u003eM81 female thread\u003c\/strong\u003e on the draw tube of a PrimaLuceLab ESATTO 3\" focuser or ARCO 3\" rotator into an \u003cstrong\u003eM72 female thread\u003c\/strong\u003e. This allows you to securely attach cameras, field flatteners, or other accessories that have a corresponding M72 male thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich PrimaLuceLab products is this M81 to M72 adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for PrimaLuceLab products that feature the large M81 threaded connection. This includes the \u003cstrong\u003eESATTO 3\" robotic microfocuser\u003c\/strong\u003e and the \u003cstrong\u003eARCO 3\" robotic rotator\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this PrimaLuceLab M81 to M72 adapter attach to my focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter has an M81 male thread that screws directly into the M81 female thread on the ESATTO 3\" or ARCO 3\" draw tube. This creates a solid, rigid connection for the rest of your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I connect with this M81 to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can connect any astrophotography accessory that terminates in an M72x1 male thread. This commonly includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eField flatteners or reducer\/correctors\u003c\/li\u003e\n\u003cli\u003eOff-axis guiders (OAGs)\u003c\/li\u003e\n\u003cli\u003eCustom camera adapters and spacers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a full-frame camera with an M72 male thread. Will this adapter let me connect it securely to my ESATTO 3\" on my Ritchey-Chrétien telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is precisely the intended use case. The adapter provides the secure, threaded connection needed to prevent any tilt or sag when using a heavy camera on a large instrument like a Ritchey-Chrétien, ensuring your sensor remains perfectly flat to the focal plane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm building an imaging train for my large refractor with an ARCO 3\" rotator, is this M81 to M72 adapter the right part for my M72-threaded flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your field flattener has an M72 male thread, this adapter will allow you to connect it directly to the output of the ARCO 3\" rotator. This ensures your entire imaging train, from rotator to camera, is rigidly connected for precise framing and 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\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\/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":44967864959261,"sku":"PLL-PL3600252","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M81-to-M72-female-for-ESATTO-3__15933.1617396020.1280.1280.jpg?v=1684346206"},{"product_id":"primalucelab-2-visual-back-for-esatto-3","title":"PrimaLuceLab 2\" Visual Back for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts ESATTO 3\" Focuser to Use 2\" Accessories\u003c\/li\u003e\n\u003cli\u003eInternal Brass Compression Ring Prevents Scratches\u003c\/li\u003e\n\u003cli\u003eMultiple Locking Screws for a Secure, Centered Fit\u003c\/li\u003e\n\u003cli\u003eThreads Directly to ESATTO 3\" Focuser Draw Tube\u003c\/li\u003e\n\u003cli\u003eIdeal for Visual Use or Cameras with 2\" Nosepieces\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\u003ePrimaLuceLab 2\" Visual Back for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back for ESATTO 3\" is the essential adapter for using standard 2\" eyepieces and accessories with your robotic focuser. This component threads directly onto the ESATTO 3\" draw tube, converting it into a secure, non-marring 2\" holder for visual observation or imaging with cameras that use a 2\" nosepiece.\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\u003eSecure Connection for 2\" Accessories via Brass Ring and Multi-Point Locking\u003c\/h3\u003e\n\u003cp\u003eThis visual back is engineered to protect your equipment while maintaining a rigid connection. A soft brass compression ring inside the barrel prevents the locking screws from directly touching and scratching the barrels of your eyepieces or camera nosepieces. The multiple locking screws are positioned around the collar to apply even pressure, ensuring your accessories are perfectly centered and held firmly without any tilt, even when supporting heavy cameras.\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 PrimaLuceLab 2\" Visual Back for ESATTO 3\" used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect any standard \u003cstrong\u003e2\" accessory\u003c\/strong\u003e, such as a diagonal, eyepiece, or a camera with a 2\" nosepiece, to the PrimaLuceLab ESATTO 3\" robotic focuser. It's the primary component needed for visual observation with the ESATTO 3\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this visual back protect my 2\" accessories from scratches?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back features an \u003cstrong\u003einternal brass compression ring\u003c\/strong\u003e. When you tighten the locking screws, this soft metal ring gently clamps down on the accessory, preventing the hard steel screws from digging into and marring the barrel of your expensive eyepieces or camera nosepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab 2\" Visual Back attach to the ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe visual back threads directly onto the male threads of the ESATTO 3\" focuser's draw tube for a secure, direct-fit connection with no flexure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab 2\" Visual Back with a heavy camera like a ZWO ASI2600MM Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is designed for a secure connection. Its multiple locking screws are arranged to provide a strong, centered grip, which is essential for preventing sag or tilt when using heavier imaging trains, including cameras like the ASI2600MM Pro that are fitted with a 2\" nosepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add significant length to the ESATTO 3\" imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe PrimaLuceLab 2\" Visual Back is designed to be as low-profile as possible to conserve precious back focus. While it adds a small amount of optical length, it is a very compact solution for adding a 2\" eyepiece holder to your ESATTO 3\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the correct adapter for connecting a camera with M54 threads to my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is specifically for accessories that use a \u003cstrong\u003e2\" slip-fit nosepiece\u003c\/strong\u003e. If your camera or accessory has female M54 threads, you will need a different adapter, such as the \"PrimaLuceLab M81 to M54 Adapter with Stop Ring for ESATTO 3\"\".\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\/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":44967864992029,"sku":"PLL-PL8410002","price":119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-2-visual-back-for-ESATTO-3__82809.1617396020.1280.1280.jpg?v=1684346208"},{"product_id":"primalucelab-adapter-esatto-3-for-gso-orion-tpo-ritchey-chretien-10-12-14-and-16","title":"PrimaLuceLab Adapter ESATTO 3\" for GSO\/Orion\/TPO Ritchey-Chretien 10, 12, 14 and 16\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" Focuser\u003c\/li\u003e\n\u003cli\u003eFor 10\", 12\", 14\", and 16\" RC Telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with GSO, Orion, and TPO Models\u003c\/li\u003e\n\u003cli\u003eProvides a Rigid, Thread-On Connection\u003c\/li\u003e\n\u003cli\u003eEnables High-Precision 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\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 Adapter ESATTO 3\" for GSO\/Orion\/TPO Ritchey-Chretien 10, 12, 14 and 16\"\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter creates the essential mechanical link for attaching the high-precision ESATTO 3\" robotic focuser to large-aperture GSO, Orion, or TPO Ritchey-Chretien telescopes—including 10\", 12\", 14\", and 16\" models—providing a rigid, secure connection 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\u003eA Secure Threaded Connection for 10\" to 16\" RC Telescopes\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for the rear cell thread of GSO, Orion, and TPO Ritchey-Chretien telescopes from 10\" to 16\" in aperture, this adapter ensures a solid, flex-free connection for the ESATTO 3\" focuser. This rigidity is critical when supporting heavy imaging trains that include large cameras, filter wheels, and off-axis guiders.\u003c\/p\u003e\n\u003cp\u003eBy replacing the telescope's stock focuser with this dedicated adapter and the ESATTO 3\", you establish a professional-grade imaging platform. The direct threaded attachment eliminates the potential for tilt or sag that can occur with generic adapters or 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\u003eIntegrating the ESATTO 3\" into Your RC Optical Train\u003c\/h3\u003e\n\u003cp\u003eInstalling the ESATTO 3\" focuser with this adapter is the first step in optimizing your RC telescope for imaging. To achieve the correct focal plane position, you will utilize the original extension rings that were supplied with your Ritchey-Chretien telescope, placing them between the rear cell and this adapter.\u003c\/p\u003e\n\u003cp\u003eDepending on your specific camera and accessories, you may need additional M81 extension tubes or other adapters on the camera-side of the ESATTO 3\" to precisely reach focus. This adapter correctly positions the focuser, allowing you to build out the rest of your imaging train to meet your back focus requirements.\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\"\u003eWhich telescopes is the PrimaLuceLab ESATTO 3\" adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed to connect the ESATTO 3\" focuser to GSO, Orion, and TPO Ritchey-Chretien telescopes with 10\", 12\", 14\", and 16\" apertures, for both aluminum and carbon fiber tube versions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need this specific adapter for my GSO 12\" RC and ESATTO 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYour GSO 12\" RC has a specific thread size on its rear cell. This adapter is machined with the corresponding thread to provide a direct, secure, and perfectly aligned connection for the ESATTO 3\" focuser, preventing tilt and flex that would compromise your images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need other parts to connect my camera after installing the ESATTO 3\" with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter connects the focuser to the telescope. You will still need the appropriate camera-side adapters (e.g., M81 to M48) to connect your specific camera to the ESATTO 3\" drawtube. You may also need extension tubes to achieve the correct back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab adapter with the smaller ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is engineered exclusively for the bolt pattern and body of the larger ESATTO 3\" focuser. A different adapter is required for the ESATTO 2\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter affect the back focus of my 16\" TPO Ritchey-Chretien?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter itself has a specific optical thickness that contributes to the overall back focus of your imaging train. You will need to use the extension rings that came with your telescope to position the ESATTO 3\" focuser correctly, and then add or remove camera-side spacers to place your sensor at the focal plane.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this PrimaLuceLab adapter suitable for visual use with my Orion 10\" RC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, indirectly. The adapter's primary purpose is to mount the ESATTO 3\" focuser for imaging. Once the focuser is installed, you can attach a 2\" visual back to the ESATTO's drawtube, allowing you to use 2\" eyepieces and accessories for high-precision visual observing.\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\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":44967865024797,"sku":"PLL-PL3600236","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-GSO-Orion-TPO-Ritchey-Chretien-10-12-14-and-16-inches__57912.1617396020.1280.1280.jpg?v=1684346209"},{"product_id":"primalucelab-adapter-esatto-3-for-takahashi-fsq85","title":"PrimaLuceLab Adapter ESATTO 3\" for Takahashi FSQ85","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" focuser to Takahashi FSQ85 telescopes\u003c\/li\u003e\n\u003cli\u003eProvides a solid, direct-thread mechanical interface\u003c\/li\u003e\n\u003cli\u003eEnables high-payload, precision motorized focusing\u003c\/li\u003e\n\u003cli\u003eMachined for a seamless fit with both components\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\u003ePrimaLuceLab Adapter ESATTO 3\" for Takahashi FSQ85\u003c\/h2\u003e\n\u003cp\u003eThis adapter creates the dedicated mechanical connection needed to install the PrimaLuceLab ESATTO 3\" robotic focuser on a Takahashi FSQ85 telescope. By integrating this adapter, you unlock the full capabilities of the ESATTO 3\" focuser, including its 8 kg payload capacity and 25 mm of motorized travel, for one of the world's premier imaging astrographs.\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\u003eMount the ESATTO 3\" Focuser Directly to Your Takahashi FSQ85\u003c\/h3\u003e\n\u003cp\u003eThis component is engineered specifically to replace the stock focuser assembly on the Takahashi FSQ85, allowing a direct and rigid installation of the PrimaLuceLab ESATTO 3\" focuser. This upgrade transforms your manual FSQ85 into a fully automated imaging platform, capable of achieving critical focus with heavy camera and accessory payloads without flexure.\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\u003eBuild Your Imaging Train: Adapting to M72 and 2\" Accessories\u003c\/h3\u003e\n\u003cp\u003eWhile this adapter connects the ESATTO 3\" to the FSQ85, further connections depend on your specific imaging train. To maintain compatibility with Takahashi's M72 threaded accessories or to achieve precise camera framing, you will need the optional M81 to M72 adapter with a stop ring.\u003c\/p\u003e\n\u003cp\u003eFor visual observers or those using cameras with a 2\" nosepiece, the optional 2\" visual back threads directly into the ESATTO 3\" focuser's M81 draw tube. Depending on your camera's back focus requirements, additional M81 extensions may be necessary to reach focus. These items are not included with the FSQ85 adapter and must be acquired separately.\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 PrimaLuceLab Adapter for ESATTO 3\" and FSQ85?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is a specific mechanical part designed to securely connect the PrimaLuceLab ESATTO 3\" robotic focuser to the optical tube of a Takahashi FSQ85 telescope, replacing the telescope's original focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need other adapters to connect my camera to the ESATTO 3\" on my FSQ85?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. This adapter connects the focuser to the telescope. To connect your camera and accessories to the focuser, you will need additional adapters, such as the \u003cstrong\u003eoptional M81 to M72 adapter with stop ring\u003c\/strong\u003e for Takahashi accessories or the \u003cstrong\u003eoptional 2\" visual back\u003c\/strong\u003e for standard 2\" nosepieces. You may also need extension tubes to reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the M81 to M72 adapter with stop ring included with this FSQ85 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The M81 to M72 adapter with stop ring is a separate accessory that threads into the M81 drawtube of the ESATTO 3\" focuser. It must be purchased separately to connect M72-threaded Takahashi accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use a 2\" diagonal for visual observing with the ESATTO 3\" on my FSQ85?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter installing the ESATTO 3\" using this adapter, you must purchase the optional \u003cstrong\u003e2\" visual back for ESATTO 3\" (PL3600210)\u003c\/strong\u003e. This accessory threads into the M81 port on the focuser's draw tube and provides a standard 2\" receptacle with compression rings for your diagonal or other 2\" accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab adapter work with the ESATTO 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed exclusively for the physical dimensions and thread pattern of the \u003cstrong\u003eESATTO 3\" focuser\u003c\/strong\u003e. It is not compatible with the ESATTO 2\" or any other focuser model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAfter installing this adapter and the ESATTO 3\" on my FSQ85, how do I set camera rotation for the North American Nebula (NGC 7000)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo achieve precise camera rotation for framing large targets like the North American Nebula (NGC 7000), you will need the \u003cstrong\u003eoptional M81 to M72 adapter with stop ring\u003c\/strong\u003e. This allows you to loosen the stop ring, rotate your entire camera train to the desired angle, and then lock it down securely without losing 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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\" Focuser to Takahashi FSQ85 Telescope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020773311\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\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":44967865057565,"sku":"PLL-PL3600271","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-Takahashi-FSQ85__84714.1617396021.1280.1280.jpg?v=1684346200"},{"product_id":"primalucelab-adapter-esatto-3-for-takahashi-telescopes-with-m72-thread","title":"PrimaLuceLab Adapter ESATTO 3\" for Takahashi Telescopes with M72 Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" motorized focusers to Takahashi telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned for OTAs with a rear M72x1 female thread\u003c\/li\u003e\n\u003cli\u003eLow-profile design minimizes added length to the imaging train\u003c\/li\u003e\n\u003cli\u003eIntegrated stop ring allows for precise rotational framing of your camera\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 Adapter ESATTO 3\" for Takahashi Telescopes with M72 Thread\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides a secure, direct-threaded connection between the ESATTO 3\" robotic focuser and Takahashi telescopes that feature an M72 thread. Its low-profile construction is engineered to replace the stock focuser interface, allowing you to upgrade your Takahashi optical tube with the precision of motorized focusing without adding unnecessary length to 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\u003eDirect M72 Threaded Connection for Takahashi Telescopes\u003c\/h3\u003e\n\u003cp\u003eBy creating a rigid, threaded connection, this adapter ensures your entire imaging system—from the focuser to the camera and any accessories—is securely coupled to the optical tube. This eliminates potential flexure or misalignment that can occur with less robust adapters, which is critical when using heavy imaging setups. The adapter is specifically designed to allow the ESATTO 3\" focuser to be used on compatible Takahashi refractors and other OTAs, unlocking robotic focusing capabilities for these premium instruments.\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\u003ePrecise Framing Control with the Integrated Stop Ring\u003c\/h3\u003e\n\u003cp\u003eA key feature of this adapter is the integrated stop ring, which enables precise rotational adjustment of your entire imaging train. After threading the adapter onto your telescope, you can rotate the attached ESATTO focuser and camera to the desired angle, then lock it firmly in place with the stop ring. This is essential for composing your shots of celestial objects like the Andromeda Galaxy (M31) or the Veil Nebula complex, ensuring perfect framing without having to detach any equipment.\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 primary purpose of the PrimaLuceLab ESATTO 3\" to M72 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to securely connect a PrimaLuceLab ESATTO 3\" motorized focuser to a Takahashi telescope that has an M72 threaded visual back. It allows you to upgrade your telescope for high-precision, remote-controlled focusing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this Takahashi M72 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a locking collar on the adapter. It allows you to rotate the entire focuser and camera assembly to perfectly frame your target, and then tighten the ring to lock it at that specific orientation. This gives you complete control over your image composition without introducing any instability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Takahashi telescopes are compatible with this PrimaLuceLab adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is compatible with any Takahashi telescope or accessory that presents a female M72x1 thread for attaching a focuser or camera system. Always check the specific thread specification on your telescope's rear cell or current focuser to confirm compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter add significant back focus to my Takahashi FSQ-106ED setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is described as having a \u003cstrong\u003elow profile\u003c\/strong\u003e, meaning it is designed to consume minimal back focus. While it will add some mechanical length, it is engineered to be as short as possible to preserve the maximum available back focus for your camera and other accessories like filter wheels or off-axis guiders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to attach my camera directly to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed to connect the ESATTO 3\" focuser to the telescope. It is not intended for connecting a camera directly. The adapter's threads are designed to mate with the ESATTO focuser body on one side and the telescope on the other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to image the Horsehead Nebula (Barnard 33) with my Takahashi telescope and ESATTO 3\". How does this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides two key benefits for this scenario. First, it enables the use of the ESATTO 3\" for extremely precise, repeatable focusing, which is critical for bringing out the faint details in the nebula. Second, the integrated stop ring allows you to rotate your camera to achieve the classic, dramatic framing of the Horsehead against the background emission nebula IC 434.\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\u003cp class=\"DAV-item-subtitle\"\u003eFor ESATTO Focuser\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":44967865319709,"sku":"PLL-PL3600245","price":161.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-Takahashi-telescopes-with-M72-thread__15325.1617396021.1280.1280.jpg?v=1684346202"},{"product_id":"primalucelab-adapter-esatto-3-for-takahashi-tsa-120","title":"PrimaLuceLab Adapter ESATTO 3\" for Takahashi TSA 120","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" Focuser to Takahashi TSA-120 Telescopes\u003c\/li\u003e\n\u003cli\u003eEnables High-Precision, Motorized Focusing\u003c\/li\u003e\n\u003cli\u003eProvides a Secure, Direct Mechanical Connection\u003c\/li\u003e\n\u003cli\u003eFoundation for a Custom Imaging or Visual Train\u003c\/li\u003e\n\u003cli\u003eCompatible with Optional ESATTO 3\" Adapters 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\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 Adapter ESATTO 3\" for Takahashi TSA 120\u003c\/h2\u003e\n\u003cp\u003eWith this adapter, the PrimaLuceLab ESATTO 3\" robotic focuser integrates directly with your Takahashi TSA-120 refractor. Your telescope gains a high-precision, remotely controlled focusing system essential for demanding imaging applications, ensuring a rigid and perfectly aligned connection between your premium optics and focuser.\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 ESATTO 3\" Integration for the Takahashi TSA-120\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered specifically to replace the stock focuser on a Takahashi TSA-120 telescope with the PrimaLuceLab ESATTO 3\" microfocuser. The connection is rigid and direct, minimizing flexure and maintaining the precise optical alignment required for high-resolution 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\u003eBuild a Flexible Imaging Train for Your TSA-120\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the foundation for building a complete, motorized imaging setup. While it provides the core connection, the ESATTO 3\" ecosystem includes a range of optional accessories to connect your specific equipment. Note that achieving focus will likely require additional components depending on your camera and accessory train.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Camera Connections:\u003c\/strong\u003e With optional camera adapters, you can connect nearly any astronomy camera or accessory. Adapters featuring a stop ring allow you to rotate your camera to perfectly frame celestial objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Observing:\u003c\/strong\u003e An optional visual back allows you to insert 2\" diagonals and eyepieces, enabling you to use the ESATTO's precise motorized control for visual astronomy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReach Focus Reliably:\u003c\/strong\u003e Depending on the back focus requirements of your camera, optional extension tubes may be necessary to place the sensor at the correct focal plane.\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 PrimaLuceLab Adapter for the ESATTO 3\" and Takahashi TSA-120?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter serves as the mechanical interface to securely mount a PrimaLuceLab ESATTO 3\" robotic focuser onto a Takahashi TSA-120 refractor. It allows you to upgrade your telescope with a robust, remotely-controlled focusing system for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Takahashi TSA-120 and want to automate my focusing. Is this the only part I need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is only one component of a complete system. You will also need the \u003cstrong\u003ePrimaLuceLab ESATTO 3\" robotic focuser\u003c\/strong\u003e itself, along with any necessary camera adapters or extension tubes to connect your specific imaging train and reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my existing Takahashi accessories with the ESATTO 3\" focuser using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but you will need the appropriate optional adapters from PrimaLuceLab. By adding camera adapters with a stop ring, you can connect your existing Takahashi accessories to the ESATTO 3\" focuser's draw tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I'm imaging a faint target like the Veil Nebula (NGC 6960) with my TSA-120, how does this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter enables the use of the ESATTO 3\" focuser, which provides extremely fine, repeatable focus adjustments. For a detailed, low-contrast target like the Veil Nebula, achieving critical focus is paramount for resolving fine filaments. This system allows you to make those adjustments remotely and precisely, which is crucial during a long imaging session.\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\" focuser for visual observation on my TSA-120 with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To use the ESATTO 3\" for visual astronomy, you will need to add the optional \u003cstrong\u003e2\" visual back for ESATTO 3\"\u003c\/strong\u003e. This accessory threads onto the focuser's draw tube and allows you to insert standard 2\" diagonals and eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to rotate my camera for better framing on a target like the Andromeda Galaxy (M31). Does this system allow for that?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, camera rotation is possible with the right accessories. You would need an optional camera adapter for the ESATTO 3\" that includes a \u003cstrong\u003estop ring\u003c\/strong\u003e. This feature allows you to lock your camera at any desired angle, making it easy to compose wide-field targets like the Andromeda Galaxy (M31).\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\/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":44967865418013,"sku":"PLL-PL3600296","price":413.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-Takahashi-TSA-120__14596.1617396021.1280.1280.jpg?v=1684346204"},{"product_id":"primalucelab-adapter-esatto-3-for-borg-90fl-and-107fl-f3-9","title":"PrimaLuceLab Adapter ESATTO 3\" for Borg 90FL and 107FL f3.9","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" robotic focuser to Borg 90FL telescopes\u003c\/li\u003e\n\u003cli\u003eConnects ESATTO 3\" robotic focuser to Borg 107FL f\/3.9 telescopes\u003c\/li\u003e\n\u003cli\u003eReplaces the original stock focuser\u003c\/li\u003e\n\u003cli\u003eTwo-ring design for secure mounting to the optical tube\u003c\/li\u003e\n\u003cli\u003eAllows use of original Borg reducer\/flattener and photo adapters\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\u003ePrimaLuceLab Adapter ESATTO 3\" for Borg 90FL and 107FL f3.9\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab Adapter for ESATTO 3\" is the definitive solution for integrating PrimaLuceLab's robotic focuser with your Borg 90FL or 107FL f\/3.9 telescope. This adapter directly replaces the telescope's original focuser, providing a secure, non-flexing connection essential for upgrading to the precision and heavy-payload capacity of the ESATTO 3\" system.\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\u003eUpgrade Your Borg 90FL\/107FL with ESATTO 3\" Robotic Focusing\u003c\/h3\u003e\n      \u003cp\u003eBy replacing the standard focuser on your Borg 90FL or 107FL f\/3.9, this adapter unlocks the capabilities of the ESATTO 3\" robotic microfocuser. This enables automated, repeatable, and highly precise focusing routines, which are critical for capturing sharp images with heavy camera and filter wheel combinations that exceed the capacity of the stock focuser.\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\u003eTwo-Ring Design for Seamless Mechanical Integration\u003c\/h3\u003e\n      \u003cp\u003eThe adapter is composed of two precisely machined rings. The first ring provides a rigid connection between the ESATTO 3\" focuser body and the carbon fiber optical tube of the Borg telescope. The second ring is designed to securely hold the Borg reducer\/flattener inside the focuser's drawtube, ensuring perfect optical alignment.\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\u003eRetain Your Existing Borg Photographic Adapters\u003c\/h3\u003e\n      \u003cp\u003eA key feature of this adapter is its compatibility with your existing imaging train. After installing the ESATTO 3\", you can continue to use the same photographic adapters that you used with the standard Borg focuser. This design choice protects your investment in accessories and simplifies the upgrade process, allowing you to reach focus without needing to replace your entire set of spacers and connectors.\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 purpose of the PrimaLuceLab ESATTO 3\" adapter for Borg telescopes?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter allows you to remove the original focuser from a \u003cstrong\u003eBorg 90FL or 107FL f\/3.9 telescope\u003c\/strong\u003e and replace it with the heavy-duty PrimaLuceLab ESATTO 3\" robotic focuser. This provides a significant upgrade in focusing precision, automation, and load capacity for astrophotography.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the installation of this ESATTO 3\" adapter reversible on my Borg 90FL?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the installation is reversible. The adapter is designed to mount the ESATTO 3\" by removing the telescope's original focuser. You can reinstall the original focuser at any time by reversing the steps.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to buy new adapters for my camera after installing the ESATTO 3\" on my Borg 107FL f\/3.9?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This adapter system is specifically designed so that you can \u003cstrong\u003euse the same photo adapters\u003c\/strong\u003e that you already use with your standard Borg focuser. This ensures you can reach focus with your existing imaging train without purchasing additional components.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab adapter for ESATTO 3\" work with telescopes other than the Borg 90FL and 107FL?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is custom-engineered specifically for the optical tube and reducer\/flattener threads of the \u003cstrong\u003eBorg 90FL and 107FL f\/3.9\u003c\/strong\u003e models only. It will not fit other telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the main benefits of using this adapter to put an ESATTO 3\" on my Borg telescope for imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor a large target like the Andromeda Galaxy (M31), maintaining a flat, focused field is critical. Upgrading to the ESATTO 3\" using this adapter provides two key benefits:\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigher Payload Capacity:\u003c\/strong\u003e It securely holds a heavy imaging train (large sensor camera, filter wheel, OAG) without flexure, which is common with stock focusers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAutomated Focusing:\u003c\/strong\u003e It allows you to use software to automatically compensate for focus shift due to temperature changes during a long imaging session, ensuring consistently sharp stars across all your exposures.\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 two-ring design of the PrimaLuceLab adapter ensure stability?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe two-ring design separates the two main connection points. One ring secures the entire focuser assembly to the telescope tube itself, while the second ring secures the optical elements (reducer\/flattener) within the drawtube. This division of tasks ensures that both the mechanical and optical connections are rigid and perfectly aligned.\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      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \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":44967865483549,"sku":"PLL-PL3600268","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-Borg-90FL-and-107FL-f3-9__66319.1617396021.1280.1280.jpg?v=1684346206"},{"product_id":"primalucelab-adapter-esatto-3-for-sky-watcher-esprit-100-ed","title":"PrimaLuceLab Adapter ESATTO 3\" for Sky-Watcher ESPRIT 100 ED","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecision-engineered for the PrimaLuceLab ESATTO 3\" robotic focuser\u003c\/li\u003e\n\u003cli\u003eDesigned for a perfect fit on the Sky-Watcher ESPRIT 100 ED telescope\u003c\/li\u003e\n\u003cli\u003eProvides the correct mechanical spacing for the shorter-travel ESATTO focuser\u003c\/li\u003e\n\u003cli\u003eEnsures a rigid, non-flexing connection for heavy imaging trains\u003c\/li\u003e\n\u003cli\u003eEnables a critical upgrade to high-precision, automated focusing\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\u003ePrimaLuceLab Adapter ESATTO 3\" for Sky-Watcher ESPRIT 100 ED\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the precise mechanical interface required to mount the ESATTO 3\" robotic microfocuser onto your Sky-Watcher ESPRIT 100 ED telescope. It is the definitive solution for imagers looking to upgrade from the stock focuser to a high-payload, automated system without introducing flexure or alignment issues. This component is purpose-built to bridge the physical gap between these two premium pieces of equipment, creating a single, rigid 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\u003eSeamless Integration: Connecting the ESATTO 3\" to Your ESPRIT 100 ED\u003c\/h3\u003e\n\u003cp\u003eHigh-end refractors like the ESPRIT 100 ED often feature focusers with long drawtube travel. The ESATTO 3\" microfocuser, engineered for sub-micron precision, has a shorter, more exact travel range. This adapter compensates for that difference, providing the necessary physical extension and a secure connection to ensure your imaging sensor can reach focus with any accessory in the 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 purpose of this PrimaLuceLab adapter for the ESATTO 3\" and ESPRIT 100 ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to create a secure, perfectly spaced mechanical connection between the PrimaLuceLab ESATTO 3\" robotic focuser and the optical tube of the Sky-Watcher ESPRIT 100 ED telescope. This allows you to replace the telescope's stock focuser with a high-precision, automated model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a special adapter for my Sky-Watcher ESPRIT 100 ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stock focuser on the ESPRIT 100 ED has a different physical length and mounting system than the ESATTO 3\". The ESATTO is a microfocuser with shorter travel, optimized for precision. This adapter provides the required extension and correct bolt pattern to ensure the ESATTO 3\" can be rigidly mounted and reach focus correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter cause any flexure in my imaging train with the ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is machined from aluminum to be a solid, rigid component. It is designed to handle the heavy payload capacity of the ESATTO 3\" focuser, ensuring that even with large cameras and filter wheels, your imaging train remains free of flexure and maintains perfect alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with other Sky-Watcher telescopes or other focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the mechanical interface of the \u003cstrong\u003eSky-Watcher ESPRIT 100 ED\u003c\/strong\u003e telescope and the \u003cstrong\u003ePrimaLuceLab ESATTO 3\"\u003c\/strong\u003e focuser. It is not compatible with other telescope models or different focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter help with imaging faint targets like the Veil Nebula (NGC 6960) with my ESPRIT 100 ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy enabling the use of the ESATTO 3\" robotic focuser, this adapter is a key part of achieving perfect focus automatically. For faint, high-resolution targets like the Veil Nebula (NGC 6960), precise focus is critical to resolving fine filaments. The rigid connection ensures that your automated focusing routines produce consistently sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I reach focus on planets like Jupiter with my ESPRIT 100 ED and ESATTO 3\" using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter provides the correct spacing to ensure you can achieve focus for high-magnification planetary imaging. Paired with the ESATTO 3\", it allows for extremely fine focus adjustments, which are essential for capturing sharp detail on Jupiter's cloud bands or Saturn's rings, especially when seeing conditions are variable.\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\/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":44967865549085,"sku":"PLL-PL3600288","price":357.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-SkyWatcher-ESPRIT-100-ED__75032.1617396021.1280.1280.jpg?v=1684346207"},{"product_id":"primalucelab-adapter-esatto-3-for-sky-watcher-esprit-120-ed-and-150-ed","title":"PrimaLuceLab Adapter ESATTO 3\" for Sky-Watcher ESPRIT 120 ED and 150 ED","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDirectly connects the ESATTO 3\" robotic focuser to specific telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with Sky-Watcher ESPRIT 120 ED and 150 ED models\u003c\/li\u003e\n\u003cli\u003eEnables precise, automated, and remote focusing capabilities\u003c\/li\u003e\n\u003cli\u003eEngineered for a rigid, zero-flexure connection\u003c\/li\u003e\n\u003cli\u003eSupports heavy astrophotography imaging trains\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\u003ePrimaLuceLab Adapter ESATTO 3\" for Sky-Watcher ESPRIT 120 ED and 150 ED\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab Adapter provides the essential mechanical link to upgrade your Sky-Watcher ESPRIT 120 ED or 150 ED refractor with the acclaimed ESATTO 3\" robotic focuser. It is custom-designed to replace the telescope's stock focuser, creating a secure, perfectly aligned connection that eliminates flexure. By installing this adapter, you unlock the full potential of your premium refractor for serious astrophotography, enabling precise, repeatable, and remote-controlled focusing for heavy cameras and accessories.\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\u003eSecure, Zero-Flex Connection for ESATTO 3\" Focusers\u003c\/h3\u003e\n      \u003cp\u003eWhen upgrading to a high-payload robotic focuser like the ESATTO 3\", the connection to the optical tube is critical. This adapter is not a generic, multi-purpose part; it is specifically machined to match the tube of the Sky-Watcher ESPRIT 120 ED and 150 ED refractors. This ensures that your entire imaging train—including the focuser, off-axis guider, filter wheel, and camera—is held with absolute rigidity, preserving the optical alignment required for sharp, round stars across the field.\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 purpose of the PrimaLuceLab Adapter for the ESATTO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter's sole purpose is to allow you to securely attach a PrimaLuceLab ESATTO 3\" robotic microfocuser to a Sky-Watcher ESPRIT 120 ED or 150 ED apochromatic refractor. It creates a solid, non-flexing mechanical connection between the telescope tube and the focuser body.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need this specific adapter for my Sky-Watcher ESPRIT 120 ED?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTelescopes and focusers have unique mounting patterns. This adapter is custom-engineered to match the specific bolt pattern and tube curvature of the \u003cstrong\u003eESPRIT 120 ED and 150 ED\u003c\/strong\u003e models. Using a generic adapter would risk poor alignment, instability, and flexure, which would degrade your astrophotography results. This part ensures a perfect, rigid fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter cause any flexure with a heavy camera on my ESPRIT 150 ED?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is designed to prevent flexure. It creates a rigid, metal-to-metal connection capable of supporting the full payload capacity of the ESATTO 3\" focuser. This is essential for maintaining sharp focus and optical alignment when using heavy, modern CMOS or CCD cameras, filter wheels, and other accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs installing the PrimaLuceLab Adapter for ESATTO 3\" 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 telescope hardware adjustments. It typically involves unthreading the stock focuser from the optical tube assembly and then threading this adapter in its place, followed by attaching the ESATTO 3\" focuser to the adapter. Always refer to the manuals for your telescope and focuser for detailed instructions.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter work with any other focusers besides the ESATTO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is designed exclusively for the \u003cstrong\u003ePrimaLuceLab ESATTO 3\" robotic focuser\u003c\/strong\u003e. It will not work with other focusers from PrimaLuceLab or other brands due to its specific mounting threads and flange design.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat benefits does adding an ESATTO 3\" focuser to my Sky-Watcher ESPRIT refractor provide?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eUpgrading with an ESATTO 3\" transforms your telescope for serious imaging. Key benefits include:\n    \u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRobotic Focusing:\u003c\/strong\u003e Achieve perfect focus remotely from a computer.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAutomation:\u003c\/strong\u003e Integrate with software for automated focusing routines that compensate for temperature changes.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Payload:\u003c\/strong\u003e Rigidly supports heavy imaging trains without slipping or flexing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision:\u003c\/strong\u003e Make incredibly small, repeatable focus adjustments far beyond what is possible by hand.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \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":44967865680157,"sku":"PLL-PL3600253","price":357.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-SkyWatcher-ESPRIT-120-ED-and-150-ED__44604.1617396022.1280.1280.jpg?v=1684346209"},{"product_id":"primalucelab-adapter-esatto-3-for-meade-16-with-4-thread","title":"PrimaLuceLab Adapter ESATTO 3\" for Meade 16\" with 4\" Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3\" focuser to Meade 16\" telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned for the standard 4\" rear cell thread\u003c\/li\u003e\n\u003cli\u003eEnables robotic focusing for heavy imaging payloads\u003c\/li\u003e\n\u003cli\u003eProvides a rigid, no-flexure mounting point\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure fit\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\u003ePrimaLuceLab Adapter ESATTO 3\" for Meade 16\" with 4\" Thread\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter is the essential mechanical link for upgrading your Meade 16-inch telescope with the high-precision ESATTO 3-inch robotic focuser. It is engineered specifically to thread directly onto the large 4-inch rear cell port common to these large Meade instruments, providing a secure, stable foundation for modern astrophotography.\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 Purpose-Built Connection for the Meade 16\" Telescope\u003c\/h3\u003e\n      \u003cp\u003eThis is not a generic adapter. It is a purpose-built component designed to create a solid, flexure-free connection between the heavy ESATTO 3\" focuser and the rear cell of a Meade 16\" telescope. This rigidity is critical for maintaining optical alignment when supporting a heavy imaging train consisting of a large sensor camera, filter wheel, and off-axis guider.\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\u003eUnlocking ESATTO 3\" Robotic Focusing for Large-Aperture Imaging\u003c\/h3\u003e\n      \u003cp\u003eBy installing this adapter, you can replace the telescope's standard focusing mechanism with the PrimaLuceLab ESATTO 3\" robotic focuser. This upgrade allows for precise, repeatable, and remotely-controlled focusing, which is fundamental for achieving the sharpest possible images with a large-aperture system. The adapter ensures the entire imaging system is securely coupled to the optical tube, ready for automated imaging sessions.\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 primary purpose of the PrimaLuceLab Adapter for the Meade 16\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts sole purpose is to allow you to securely attach a PrimaLuceLab ESATTO 3\" robotic focuser to a Meade 16-inch telescope that uses a 4-inch threaded rear cell. It bridges the mechanical gap between these two specific pieces of equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with any other telescope besides the Meade 16\" with a 4\" thread?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This adapter is specifically machined to match the thread size and pitch of the 4-inch port on the Meade 16\" telescope. It is not compatible with other telescope brands or models, even those with similarly sized rear cells.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI want to automate focusing on my Meade 16\" SCT for imaging the Whirlpool Galaxy (M51). Is this the right part?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this adapter is the essential first part you need for that project. It allows you to mount the ESATTO 3\" robotic focuser, which is the component that will provide the automated, high-precision focusing required for deep-sky objects like M51.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a 3-inch focuser like the ESATTO 3\" for my Meade 16\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA large 3-inch focuser is recommended for large-aperture telescopes for two main reasons. First, it can handle the significant weight of modern astrophotography setups (large cameras, filter wheels, etc.) without flexing. Second, its large clear aperture helps prevent vignetting (darkening of the corners) when using cameras with large, full-frame sensors.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this PrimaLuceLab adapter install on the Meade 16\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstallation is straightforward. You simply unthread any existing accessory from the 4-inch port on the back of your Meade 16\" telescope and then thread this adapter on in its place. The ESATTO 3\" focuser then attaches directly to the adapter.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIf I mount an ESATTO 3\" on my Meade 16\" using this adapter, will it hold a heavy camera for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The adapter is designed to create a rigid, robust connection capable of supporting the ESATTO 3\" focuser and a heavy imaging payload. This ensures that there is no sag or flexure during long exposures, which is critical for capturing sharp star detail in bright nebulae like the Orion Nebula (M42).\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\/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":44967865712925,"sku":"PLL-PL3600292","price":413.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-3-for-Meade-16-inches-with-4-thread__79169.1617396022.1280.1280.jpg?v=1684346211"},{"product_id":"primalucelab-m81-25mm-extension-tube-for-esatto-3","title":"PrimaLuceLab M81 25mm Extension Tube for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds a fixed 25mm of back focus\u003c\/li\u003e\n\u003cli\u003eThreads: M81x1 Male to M81x1 Female\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 3\" Focuser\u003c\/li\u003e\n\u003cli\u003eCNC-machined from a single block of aluminum\u003c\/li\u003e\n\u003cli\u003eBlack anodized finish to minimize internal reflections\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\u003ePrimaLuceLab M81 25mm Extension Tube for ESATTO 3\"\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab M81 25mm Extension Tube adds a fixed 25mm of spacing to the optical train of any ESATTO 3\" robotic focuser. It threads directly to the focuser's M81 draw tube, providing the critical distance required to bring cameras and complex imaging trains to a precise focus point when the standard travel is insufficient.\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\u003eRigid 25mm Spacing for ESATTO 3\" M81 Systems\u003c\/h3\u003e\n      \u003cp\u003eThis 25mm extension is an essential component for imagers who need to achieve focus with setups that require more back focus than the ESATTO 3\" focuser's native draw tube travel provides. By inserting this rigid spacer, you can easily accommodate off-axis guiders, filter wheels, or cameras with deeply recessed sensors without compromising the stability of your imaging train.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSolid Construction:\u003c\/strong\u003e Machined from a single piece of aluminum and black anodized, the extension maintains perfect optical alignment and prevents stray light from reducing contrast.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eM81 Thread Standard:\u003c\/strong\u003e With male and female M81 threads, it installs seamlessly between the ESATTO 3\" draw tube and other M81 adapters, such as reducers or camera rotators.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSystem Integration:\u003c\/strong\u003e As part of the PrimaLuceLab ecosystem, this extension is designed to work flawlessly with all ESATTO 3\" camera adapters, ensuring a secure, threaded connection throughout your entire setup.\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 is the primary purpose of the PrimaLuceLab M81 25mm Extension Tube?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary purpose is to add a fixed \u003cstrong\u003e25mm of length\u003c\/strong\u003e to your optical path. This is necessary when your camera's sensor cannot reach the focal plane using only the ESATTO 3\" focuser's draw tube travel, a common issue when using accessories like focal reducers or off-axis guiders.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this 25mm extension tube attach to the ESATTO 3\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe extension tube features \u003cstrong\u003eM81x1 threads\u003c\/strong\u003e on both ends. The male thread screws directly into the M81 female thread on the ESATTO 3\" focuser's draw tube, and the female end accepts any other M81-threaded accessory from the PrimaLuceLab line.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need to use the M81 25mm Extension Tube with my refractor telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou would use it if, after adding a focal reducer, filter wheel, and camera, you find that you run out of \"out-travel\" on your ESATTO 3\" focuser before the stars become sharp. The 25mm extension effectively pushes your entire imaging train outward, bringing it into the focuser's range.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple PrimaLuceLab M81 25mm extension tubes for more length?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, you can thread multiple extensions together to create longer spacers (e.g., two for 50mm). However, for longer distances, it is often better to use a single, longer extension if available to maximize rigidity and minimize the number of connection points.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the M81 25mm Extension Tube made of?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is CNC-machined from a solid block of \u003cstrong\u003ealuminum\u003c\/strong\u003e for high strength and low weight. It is then \u003cstrong\u003eblack anodized\u003c\/strong\u003e to provide a durable, scratch-resistant finish and to prevent internal reflections that could degrade image contrast.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M81 25mm extension tube work with focusers other than the ESATTO 3\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile it is designed specifically for the PrimaLuceLab ESATTO 3\" focuser, it will theoretically work with any focuser or adapter that uses a standard M81x1 thread. However, compatibility and correct spacing for other systems are not guaranteed.\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\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM81x1 Male and Female\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eExtension Length\u003c\/td\u003e\n\u003ctd\u003e25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePrimaLuceLab ESATTO 3\" Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum\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  \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":44967865778461,"sku":"PLL-PL3600285","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-M81-25mm-extension-tube-for-ESATTO-3__69893.1641520586.1280.1280.jpg?v=1684346211"},{"product_id":"primalucelab-65mm-extension-tube-for-esatto-3","title":"PrimaLuceLab 65mm Extension Tube for ESATTO 3\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds 65mm of extension for ESATTO 3\" focusers\u003c\/li\u003e\n\u003cli\u003eEnables focus on telescopes with long-travel stock focusers\u003c\/li\u003e\n\u003cli\u003eIntegrated dovetail coupling system for manual rotation\u003c\/li\u003e\n\u003cli\u003eSecured by 3 screws set at 120° for precise alignment\u003c\/li\u003e\n\u003cli\u003eDesigned for refractors and other long back-focus systems\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\u003ePrimaLuceLab 65mm Extension Tube for ESATTO 3\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab 65mm Extension Tube is the essential mechanical adapter for integrating your ESATTO 3\" robotic focuser with telescopes originally designed for long-travel focusers. This tube adds a fixed 65mm of optical path length, bridging the gap left when replacing a stock focuser that has more travel than the micrometric ESATTO. Its integrated dovetail coupling is secured by 3 screws set at 120° intervals, allowing you to manually rotate your entire imaging train for perfect composition.\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\u003eAchieve Focus: Adding 65mm for Long-Travel Telescope Designs\u003c\/h3\u003e\n\u003cp\u003eThe ESATTO 3\" is a micrometric focuser, engineered for high-precision, short-travel adjustments. When installed on telescopes like refractors, which often come with stock focusers offering extensive travel, you may find it impossible to reach focus. This 65mm extension solves that problem by consuming the excess back focus, effectively moving your ESATTO 3\" into the correct focal plane.\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\u003e360° Rotational Framing with a 3-Screw Dovetail System\u003c\/h3\u003e\n\u003cp\u003eBeyond simply adding length, this extension provides a critical framing function. It features a precise dovetail coupling system that allows you to manually rotate the attached ESATTO 3\" focuser. By loosening the 3 screws set at 120° around the collar, you can orient your camera to perfectly frame targets like the Andromeda Galaxy (M31) or the Veil Nebula complex without introducing tilt.\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\"\u003eWhy do I need the 65mm Extension Tube for my ESATTO 3\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this extension if you are installing an ESATTO 3\" focuser on a telescope, typically a refractor, that originally had a focuser with a long drawtube. The ESATTO is a high-precision, short-travel focuser, and this \u003cstrong\u003e65mm tube\u003c\/strong\u003e compensates for the difference, ensuring you can reach focus with your camera and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the rotation feature on the 65mm Extension Tube work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extension features a dovetail coupling mechanism. By slightly loosening the three screws positioned at 120-degree intervals around the tube's collar, you can smoothly rotate the ESATTO 3\" focuser and your entire imaging train. Once you achieve the desired orientation, you simply retighten the screws to lock it securely in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 65mm extension introduce flexure into my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis extension is machined by PrimaLuceLab to match the high mechanical standards of the ESATTO 3\" focuser. When correctly installed and tightened, it is designed to provide a rigid connection that minimizes flexure, even when supporting heavy imaging systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I stack multiple 65mm extension tubes if I need more back focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile mechanically possible, stacking extensions is generally not recommended as it can increase the risk of flexure and vignetting. It is best to use a single extension that is closest to the required length for your specific telescope and imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm installing an ESATTO 3\" on my large refractor that needs a lot of out-travel. Is this 65mm extension my only option?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePrimaLuceLab designed this 65mm extension specifically for this purpose. It provides a substantial length to accommodate most large refractors. If your setup requires a different length, you may need to investigate custom or alternative adapters, but this 65mm tube is the standard solution for bridging significant back-focus gaps with the ESATTO 3\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging the Horsehead Nebula (Barnard 33) with my ESATTO 3\", how does the rotation on this 65mm tube help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Horsehead Nebula has a distinct vertical orientation that often looks best when aligned with the long axis of a rectangular camera sensor. The rotation feature on the 65mm extension allows you to precisely orient your camera to frame the nebula and the nearby Flame Nebula (NGC 2024) aesthetically, ensuring you get the most compelling composition without having to rotate the entire optical tube in its rings.\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\/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":44967865909533,"sku":"PLL-PL3600284","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-65mm-extension-tube-for-ESATTO-3__77775.1617396022.1280.1280.jpg?v=1684346212"},{"product_id":"primalucelab-adapter-esatto-4-for-takahashi-fsq-106","title":"PrimaLuceLab Adapter ESATTO 4\" for Takahashi FSQ-106","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInstalls the PrimaLuceLab ESATTO 4\" focuser on a Takahashi FSQ-106 telescope\u003c\/li\u003e\n\u003cli\u003eEngineered to match the original focuser's thickness to maintain focus point\u003c\/li\u003e\n\u003cli\u003eEnables heavy-payload, large-aperture robotic focusing on the FSQ-106\u003c\/li\u003e\n\u003cli\u003eProvides a secure, direct-fit mechanical connection\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\u003ePrimaLuceLab Adapter ESATTO 4\" for Takahashi FSQ-106\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab Adapter for the ESATTO 4\" allows you to replace the stock focuser on your Takahashi FSQ-106, unlocking the capabilities of a robotic focuser with a 102.2mm clear aperture and a 10 kg payload capacity. The adapter is precisely engineered to maintain the same optical thickness as the original Takahashi focuser, ensuring you can reach focus with your existing cameras and accessories without modification.\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\u003eUpgrade Your FSQ-106 with the ESATTO 4\" Robotic Focuser\u003c\/h3\u003e\n\u003cp\u003eThe Takahashi FSQ-106 is a legendary astrograph, and this adapter allows you to pair it with a modern, observatory-grade robotic focuser. By installing the ESATTO 4\", you gain a massive 102.2mm of clear aperture, eliminating any potential vignetting with full-frame sensors. The focuser's 10 kg payload capacity and 35mm of precise, repeatable draw tube travel let you automate focusing even with the heaviest imaging trains.\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\u003eCritical Compatibility: Designed for the FSQ-106 Only\u003c\/h3\u003e\n\u003cp\u003eThis adapter is designed exclusively for specific versions of the Takahashi FSQ-106 telescope. Its dimensions are calculated to perfectly replace the original focuser's optical thickness on that scope, allowing the full imaging train to come to focus correctly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirmed Compatibility:\u003c\/strong\u003e Takahashi FSQ-106 (original models).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnown Incompatibility:\u003c\/strong\u003e This adapter will \u003cstrong\u003enot\u003c\/strong\u003e work with Takahashi FSQ-106EDX III or FSQ-106EDX IV models. Use on an incompatible telescope will prevent you from reaching 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\"\u003eWhat is the purpose of the PrimaLuceLab Adapter for the ESATTO 4\" and FSQ-106?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides the mechanical connection needed to remove the original factory focuser from a Takahashi FSQ-106 telescope and replace it with PrimaLuceLab's ESATTO 4\" robotic focuser. It allows you to upgrade your telescope for automated, high-payload imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I be able to reach focus on my FSQ-106 after installing this adapter and the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The adapter is specifically designed to have the same optical thickness as the original focuser it replaces. This means that when the ESATTO 4\" is installed using this adapter, your telescope's focal point remains in the correct position relative to the focuser drawtube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with my Takahashi FSQ-106EDX4 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Takahashi FSQ-106EDX 3 or FSQ-106EDX 4 models. You must use the adapter designed specifically for your telescope model to ensure proper fit and focus capability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I replace the stock Takahashi FSQ-106 focuser with an ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUpgrading to the ESATTO 4\" provides several key advantages for astrophotography:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotic Control:\u003c\/strong\u003e Enables automated, repeatable focusing controlled by a computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Payload:\u003c\/strong\u003e Supports up to 10 kg, easily handling heavy cameras, filter wheels, and off-axis guiders without flexure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Aperture:\u003c\/strong\u003e The 102.2mm clear aperture prevents vignetting on large, full-frame camera sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add extra length to the FSQ-106 optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is designed as a \"zero-thickness\" replacement. It occupies the same amount of space in the optical path as the flange of the original focuser, preserving your telescope's back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I want to add an ARCO 3\" rotator to my FSQ-106 imaging train, is this the right adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter connects the ESATTO 4\" focuser to the FSQ-106 telescope tube. To add an ARCO 3\" rotator, you will need an additional adapter that connects the ARCO 3\" to the drawtube of the ESATTO 4\" focuser, not this one.\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\/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":44967865975069,"sku":"PLL-PL3600310","price":231.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-4-for-Takahashi-FSQ-106__04305.1617396023.1280.1280.jpg?v=1684346214"},{"product_id":"primalucelab-adapter-esatto-4-for-takahashi-fsq-106edxiv","title":"PrimaLuceLab Adapter ESATTO 4\" for Takahashi FSQ-106EDXIV","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 4\" Focuser to Takahashi FSQ-106EDXIV \u0026amp; FSQ-106EDX3\u003c\/li\u003e\n\u003cli\u003eProvides 35mm of Optical Thickness\u003c\/li\u003e\n\u003cli\u003eReplicates the Original 100.5mm Focuser Path Length with ESATTO 4\"\u003c\/li\u003e\n\u003cli\u003eEnables Robotic, High-Payload Focusing on the FSQ-106 Astrograph\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined for a Secure, No-Flexure Connection\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\u003ePrimaLuceLab Adapter ESATTO 4\" for Takahashi FSQ-106EDXIV\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter enables the installation of the ESATTO 4\" robotic focuser onto the Takahashi FSQ-106EDX astrograph (versions 3 and 4). With a precise optical thickness of 35mm, this adapter is engineered to ensure the total optical path of the ESATTO 4\" matches the original Takahashi focuser's 100.5mm length, allowing you to reach perfect focus with your existing 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\u003eA 35mm Adapter for ESATTO 4\" Robotic Focuser Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for the Takahashi FSQ-106EDX series (versions 3 and 4), this adapter provides the critical mechanical link to upgrade from the stock manual focuser. It replaces the original unit, creating a seamless and rigid connection for the large-format ESATTO 4\" robotic focuser. This upgrade is the first step in converting your world-class astrograph into a fully automated imaging platform.\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\u003ePreserving the FSQ-106EDXIV's 100.5mm Optical Path\u003c\/h3\u003e\n\u003cp\u003eThe most critical function of this adapter is maintaining the telescope's precise back focus requirements. The Takahashi FSQ-106EDXIV is designed around a 100.5mm focuser thickness; this 35mm adapter, when combined with the ESATTO 4\" focuser, precisely replicates that dimension. This guarantees that you can achieve sharp focus without needing additional, non-standard spacers or extenders.\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\u003eBuilding a Fully Automated System with ARCO and EAGLE\u003c\/h3\u003e\n\u003cp\u003eThis adapter is your gateway to the complete PrimaLuceLab ecosystem. By installing the ESATTO 4\" focuser, you gain access to its 10 kg payload capacity and 102.2mm of clear aperture, ideal for heavy cameras and filter wheels. You can then integrate the ARCO 3\" robotic rotator for automated field de-rotation and framing, and control the entire system remotely with an EAGLE all-in-one computer, creating a powerful, observatory-grade 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 is the purpose of this ESATTO 4\" adapter for the FSQ-106EDXIV?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to remove the original manual focuser from your Takahashi FSQ-106EDX3 or FSQ-106EDXIV telescope and replace it with the much larger, higher-capacity PrimaLuceLab ESATTO 4\" robotic focuser. This enables automated, computer-controlled focusing for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 35mm thickness of this FSQ-106EDXIV adapter so important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Takahashi optical design requires a specific distance for the focuser assembly, which is 100.5mm. This adapter's \u003cstrong\u003e35mm thickness\u003c\/strong\u003e is calculated to perfectly complement the body of the ESATTO 4\" focuser, ensuring the combined unit matches that 100.5mm requirement. This allows you to reach focus correctly with your camera and other accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab adapter work with a standard Takahashi FSQ-106 or FSQ-106ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the standard FSQ-106 or earlier FSQ-106ED models. It is specifically designed for the mechanical interface of the Takahashi FSQ-106EDX3 and FSQ-106EDXIV astrographs only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat benefits does the ESATTO 4\" focuser offer over the stock FSQ-106EDXIV focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ESATTO 4\" offers several key advantages for imagers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotic Control:\u003c\/strong\u003e Allows for precise, repeatable focusing controlled by a computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Payload Capacity:\u003c\/strong\u003e Supports up to 10 kg, easily handling heavy imaging trains with large cameras, filter wheels, and off-axis guiders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Aperture:\u003c\/strong\u003e Features a 102.2mm clear aperture to prevent vignetting with full-frame sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ARCO 3\" rotator with this ESATTO 4\" adapter on my FSQ-106EDXIV?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but you will need an additional, specific adapter. PrimaLuceLab makes a separate 10.5mm thick adapter (PL3600416) designed to connect the ARCO 3\" rotator to the ESATTO 4\" focuser when installed on an FSQ-106. This adapter prevents the rotator from interfering with the telescope's internal field flattener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs everything I need to install the ESATTO 4\" on my FSQ-106EDXIV included with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis product is the adapter only. You will need to have the PrimaLuceLab ESATTO 4\" robotic focuser itself. This adapter provides the mechanical connection between the focuser and the telescope tube.\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\/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":44967866007837,"sku":"PLL-PL3600324","price":231.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-4-for-Takahashi-FSQ-106EDXIV__29552.1617396023.1280.1280.jpg?v=1684346216"},{"product_id":"primalucelab-adapter-esatto-4-for-officina-stellare-prorc-ridk-rifast","title":"PrimaLuceLab Adapter ESATTO 4\" for Officina Stellare ProRC, RiDK, RiFAst","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 4\" focusers to select Officina Stellare telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned for ProRC, RiDK, and RiFAst models\u003c\/li\u003e\n\u003cli\u003eEnsures a rigid, direct-thread attachment for astrophotography\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure fit\u003c\/li\u003e\n\u003cli\u003eMaintains optical alignment under heavy payloads\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\u003ePrimaLuceLab Adapter ESATTO 4\" for Officina Stellare ProRC, RiDK, RiFAst\u003c\/h2\u003e\n\u003cp\u003eThis PrimaLuceLab adapter provides the essential mechanical link to mount the ESATTO 4\" robotic focuser onto Officina Stellare's observatory-grade ProRC, RiDK, and RiFAst telescopes. It is engineered to create a seamless, non-flexing connection, ensuring that the large aperture and high payload capacity of the ESATTO 4\" are fully supported when paired with these premium astrographs.\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\u003eSecure Connection for Officina Stellare Telescopes\u003c\/h3\u003e\n\u003cp\u003eWhen assembling an imaging train with large-format cameras and heavy accessories, every connection point must be absolutely rigid. This adapter replaces generic solutions with a direct, threaded attachment designed specifically for the rear plate thread on Officina Stellare ProRC, RiDK, and RiFAst models. This purpose-built design eliminates the potential for tilt or flexure that can compromise image quality during long exposures, preserving the exceptional optical performance of your telescope and focuser.\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 PrimaLuceLab Adapter for the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's sole purpose is to allow you to securely attach the PrimaLuceLab ESATTO 4\" robotic focuser to the rear cell of specific Officina Stellare telescopes. It ensures a rigid, perfectly aligned mechanical connection between the telescope and the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Officina Stellare telescopes is this ESATTO 4\" adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for Officina Stellare \u003cstrong\u003eProRC\u003c\/strong\u003e, \u003cstrong\u003eRiDK\u003c\/strong\u003e, and \u003cstrong\u003eRiFAst\u003c\/strong\u003e telescopes that feature the appropriate female thread on their rear plate for this adapter to connect to.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this adapter to install an ESATTO 4\" on my Officina Stellare ProRC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ESATTO 4\" focuser and the Officina Stellare telescopes have different native threads. This adapter is the required component to bridge that gap and create a secure, direct-threaded installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab adapter introduce any flexure into my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is engineered to prevent flexure. It is machined from solid metal to create a robust connection capable of supporting the ESATTO 4\" focuser and heavy imaging payloads without sagging or tilting, which is critical for high-resolution astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter attach to my Officina Stellare RiDK telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter threads directly onto the rear plate of the Officina Stellare RiDK. The other side of the adapter provides the correct threading to securely mount the body of the ESATTO 4\" focuser, resulting in a single, solid assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter manufactured by PrimaLuceLab?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an official PrimaLuceLab accessory. It is designed and manufactured to the same high standards as their focusers and other PLUS system components, ensuring perfect compatibility and reliable operation.\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\/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":44967866073373,"sku":"PLL-PL3600326","price":329.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-ESATTO-4-for-Officina-Stellare-ProRC-RiDK-RiFAst__14093.1641520597.1280.1280.jpg?v=1684346217"},{"product_id":"primalucelab-adapter-from-m110-to-m92-female-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts ESATTO 4\" M110x1 Male Thread to a Takahashi-standard M92x1 Female Thread\u003c\/li\u003e\n\u003cli\u003eEnables Direct Connection of Takahashi Photographic Adapters, Reducers, and Flatteners\u003c\/li\u003e\n\u003cli\u003eDesigned Specifically for the PrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/li\u003e\n\u003cli\u003eIdeal for Integrating the ESATTO 4\" with Takahashi FSQ-106 Astrographs\u003c\/li\u003e\n\u003cli\u003ePrecision-Machined Aluminum with Black Anodizing for Durability\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\u003ePrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M110 to M92 Female for ESATTO 4\" provides the essential mechanical link between the large-format ESATTO 4\" robotic focuser and Takahashi's ecosystem of photographic adapters. This component converts the M110x1 male thread on the ESATTO's draw tube into the M92x1 female thread found on the original Takahashi focuser. This allows you to attach Takahashi's highly-regarded focal reducers, flatteners, and camera adapters directly to the ESATTO 4\", combining Italian robotic focus control with premium Japanese 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\u003eBridge Your ESATTO 4\" Focuser to Takahashi M92 Adapters\u003c\/h3\u003e\n\u003cp\u003eIf you've upgraded your Takahashi FSQ-106 or another large astrograph with the PrimaLuceLab ESATTO 4\" focuser, this adapter is a non-negotiable component for astrophotography. It restores the native M92x1 connection point that your existing Takahashi accessories are designed for. Instead of searching for complex, multi-part solutions, this single, precision-machined ring ensures a direct, secure fit for your complete 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\u003eMaintain a Rigid, All-Threaded Imaging Train\u003c\/h3\u003e\n\u003cp\u003eIn observatory-class imaging systems, every connection point is a potential source of flexure. This adapter eliminates the risks associated with push-fit or compression ring systems by maintaining an all-threaded connection from the focuser to your camera. Machined from aluminum and black-anodized, it provides a rigid, non-reflective interface that protects your investment in both the focuser and your optical correctors.\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 Integration with the PrimaLuceLab Ecosystem\u003c\/h3\u003e\n\u003cp\u003eThis adapter is part of PrimaLuceLab's comprehensive system designed to automate your astrophotography. By enabling the ESATTO 4\" to work with Takahashi optics, you can leverage the full power of PrimaLuceLab's PLAY software and EAGLE computers to control your entire setup. This component ensures that your optical train is as robust and integrated as the electronic control system managing it.\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 primary purpose of the PrimaLuceLab M110 to M92 adapter for the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter's sole function is to convert the \u003cstrong\u003eM110x1 male thread\u003c\/strong\u003e on the draw tube of an ESATTO 4\" focuser into an \u003cstrong\u003eM92x1 female thread\u003c\/strong\u003e. This M92 thread is the standard used by many Takahashi photographic accessories, allowing you to connect them securely to the ESATTO focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my Takahashi focal reducer with the ESATTO 4\" focuser using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your Takahashi focal reducer or flattener connects via an M92x1 male thread, this adapter will allow you to attach it directly to the ESATTO 4\" focuser. It is designed specifically for this purpose, enabling the use of Takahashi's optical correctors with PrimaLuceLab's robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with any focuser other than the PrimaLuceLab ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the PrimaLuceLab ESATTO 4\" focuser. It will not fit smaller ESATTO models (like the 2\" or 3\") or focusers from other manufacturers, as the M110x1 draw tube thread is unique to the ESATTO 4\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Takahashi FSQ-106; is this the correct adapter to connect my camera train to an ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the correct adapter. The Takahashi FSQ-106 is a primary use case for the ESATTO 4\" focuser. This M110 to M92 adapter ensures that the standard Takahashi accessory ecosystem, which you may already own for your FSQ-106, can be used with the upgraded robotic focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the M110 to M92 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this adapter is designed to be as mechanically thin as possible, any adapter will add some length to the optical path. You must account for its thickness when calculating your back focus distance. It is crucial to ensure your complete imaging train meets the precise spacing requirements of your flattener or reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a threaded adapter like the M110 to M92 important for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThreaded connections are critical for preventing tilt and flexure, especially with heavy cameras and filter wheels. Unlike compression rings or set screws, a direct-threaded connection like the one this adapter provides ensures that all components are perfectly coaxial and held rigidly in place, which is essential for achieving sharp stars across the entire image field.\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\/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":44967866138909,"sku":"PLL-PL3600316","price":217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M92-female-for-ESATTO-4__48567.1617396023.1280.1280.jpg?v=1684346219"},{"product_id":"primalucelab-adapter-from-m110-to-m68-with-stop-ring-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M68x1 threaded accessories to the ESATTO 4\" focuser\u003c\/li\u003e\n\u003cli\u003eFeatures an independent stop ring for precise rotational framing\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the M110 drawtube of the ESATTO 4\"\u003c\/li\u003e\n\u003cli\u003eLow-profile design minimizes consumption of backfocus\u003c\/li\u003e\n\u003cli\u003eMachined from aluminum and black anodized for durability\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\u003ePrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter from M110 to M68 with Stop Ring for ESATTO 4\" creates a secure connection between the large M110 drawtube of the ESATTO 4\" robotic focuser and accessories using the common M68 thread. This adapter's integrated stop ring allows you to precisely orient your camera for perfect framing of any celestial target, solving a common frustration in complex imaging trains.\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\u003eM68 Connection and Rotational Framing for ESATTO 4\" Focusers\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the essential link for attaching cameras, field flatteners, or reducers with an M68x1 female thread to the observatory-grade ESATTO 4\" focuser. Its primary function is mechanical adaptation, but its most critical feature is the independent stop ring. This allows you to achieve perfect framing by threading your camera on, rotating it to the ideal angle, and then locking it securely in place by tightening the stop ring against the focuser body. This eliminates the need to settle for a slightly off-axis composition just because that's where the threads tightened.\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 primary use for the PrimaLuceLab M110 to M68 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary use is to connect imaging accessories that have a female \u003cstrong\u003eM68x1 thread\u003c\/strong\u003e to the male \u003cstrong\u003eM110x1 thread\u003c\/strong\u003e on the drawtube of the PrimaLuceLab ESATTO 4\" robotic focuser. This is common for full-frame cameras and large correctors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on the M110 to M68 adapter work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring provides \u003cstrong\u003e360-degree rotational control\u003c\/strong\u003e. You first thread the main adapter body onto the ESATTO 4\" focuser. Then, you can slightly loosen it to rotate your attached camera to the exact angle you need for framing. Finally, you tighten the separate stop ring against the focuser body, which locks your chosen orientation securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab M110 to M68 adapter add significant length to the optical path?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to be a \u003cstrong\u003elow-profile adapter\u003c\/strong\u003e. It consumes a minimal amount of backfocus, making it easier to integrate into imaging trains that have tight spacing requirements between the corrector and camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with the ESATTO 2\" or 3\" focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed exclusively for the \u003cstrong\u003eESATTO 4\" focuser\u003c\/strong\u003e, which uses a large M110x1 drawtube thread. It will not fit the smaller threads on the ESATTO 2\" or 3\" models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use this adapter to frame the Horsehead Nebula (Barnard 33) vertically with my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo frame a target like the Horsehead Nebula vertically, you would attach your camera to the adapter and then thread the adapter onto your ESATTO 4\" focuser. Before fully tightening, rotate the entire camera assembly until the nebula is oriented correctly in your live view feed. Once you have the perfect composition, simply tighten the adapter's stop ring to lock it in place for your imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI need to connect an M68 reducer to my ESATTO 4\" on a large astrograph. Is this the correct adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact application this adapter is designed for. It allows you to rigidly couple accessories with M68 threads, such as reducers or flatteners, to the large-aperture ESATTO 4\" focuser often used on astrographs like the Takahashi FSQ-106.\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\/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":44967866171677,"sku":"PLL-PL3600312","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M68-with-stop-ring-for-ESATTO-4__44473.1617396023.1280.1280.jpg?v=1684346220"},{"product_id":"primalucelab-adapter-from-m110-to-m95-female-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M95 Female for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts the ESATTO 4\" focuser's M110x1 male thread to an M95x1 female thread\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the PrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/li\u003e\n\u003cli\u003eEnables direct, secure connection of Takahashi photographic adapters\u003c\/li\u003e\n\u003cli\u003eProvides a critical link for integrating Takahashi optical systems with PrimaLuceLab 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\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 Adapter from M110 to M95 Female for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter for the ESATTO 4\" focuser converts the native M110x1 male thread on the draw tube to a versatile M95x1 female thread. This specific conversion is essential for securely attaching Takahashi photographic adapters, including those used with premier astrographs like the FSQ-106. By providing this critical M95x1 interface, the adapter fully integrates the high-payload ESATTO 4\" robotic focuser into the Takahashi optical ecosystem.\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\u003eM95x1 Thread Conversion for Takahashi Adapters on the ESATTO 4\"\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the crucial mechanical link between two high-end astrophotography systems. The ESATTO 4\" focuser is engineered for heavy imaging trains and large-aperture telescopes, while Takahashi adapters are the standard for their own optical tubes. This component bridges that gap, allowing you to use Takahashi's purpose-built camera adapters and field flatteners with the precision and remote-control capabilities of the ESATTO 4\" focuser.\u003c\/p\u003e\n\u003cp\u003eThe adapter ensures a rigid, threaded connection that eliminates flexure and maintains perfect optical alignment. For imagers who have invested in the Takahashi system but require the automated focusing of the ESATTO 4\", this adapter is not an accessory—it's a mandatory component for system integration.\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 primary purpose of the PrimaLuceLab M110 to M95 adapter for the ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to convert the M110x1 male thread on the draw tube of an ESATTO 4\" focuser into an \u003cstrong\u003eM95x1 female thread\u003c\/strong\u003e. This allows you to attach camera adapters and accessories from Takahashi, which commonly use the M95x1 thread standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with the PrimaLuceLab ESATTO 2\" or 3\" models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed exclusively for the \u003cstrong\u003eESATTO 4\" focuser\u003c\/strong\u003e, which uses a large M110x1 draw tube thread. The smaller ESATTO models use different thread sizes and are not compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter required to use a Takahashi FSQ-106 with an ESATTO 4\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if you intend to use Takahashi's own photographic adapters behind the focuser. The \u003cstrong\u003ePrimaLuceLab ESATTO 4\"\u003c\/strong\u003e provides the focusing mechanism, but this adapter provides the correct M95x1 threading to connect to the rest of the Takahashi-specific imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the ESATTO 4\" with this adapter improve imaging on a Takahashi telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile Takahashi focusers are excellent, the ESATTO 4\" offers robotic, temperature-compensated focusing with high payload capacity. This adapter lets you combine the optical excellence of a Takahashi scope with the advanced, automated focusing control of the PrimaLuceLab ecosystem, which is critical for maintaining sharp focus over long imaging sessions as temperatures change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a slip-fit or threaded connection to the ESATTO 4\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a fully \u003cstrong\u003ethreaded connection\u003c\/strong\u003e. It screws directly onto the M110x1 thread of the ESATTO 4\" draw tube, ensuring a rigid, flex-free attachment for your imaging equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need this M110 to M95 adapter if I'm not using Takahashi accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost likely not. This adapter is specifically for connecting accessories that require an M95x1 female thread, which is most common in the Takahashi ecosystem. If your camera or reducer uses a different thread, PrimaLuceLab offers other adapters for the ESATTO 4\".\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\u003ePrimaLuceLab ESATTO 4\" Robotic Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Side Thread\u003c\/td\u003e\n\u003ctd\u003eM110x1 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side Thread\u003c\/td\u003e\n\u003ctd\u003eM95x1 (Female)\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\"\u003eAdapter from M110 to M95 Female for ESATTO 4\"\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\/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":44967866269981,"sku":"PLL-PL3600319","price":217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M95-female-for-ESATTO-4__02917.1617396024.1280.1280.jpg?v=1684346222"},{"product_id":"primalucelab-adapter-from-m110-to-m98-with-stop-ring-for-esatto-4","title":"PrimaLuceLab Adapter from M110 to M98 with Stop Ring for ESATTO 4\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects accessories to the PrimaLuceLab ESATTO 4\" Focuser\u003c\/li\u003e\n\u003cli\u003eIncludes an independent stop ring for rotational adjustment\u003c\/li\u003e\n\u003cli\u003eEnables precise framing of celestial objects\u003c\/li\u003e\n\u003cli\u003eLow-profile design to preserve back focus\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\u003ePrimaLuceLab Adapter from M110 to M98 with Stop Ring for ESATTO 4\"\u003c\/h2\u003e\n\u003cp\u003e\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\u003eRotational Framing Control for ESATTO Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eThis adapter provides the essential link between the large-format draw tube of the PrimaLuceLab ESATTO 4\" robotic focuser and the common thread size used by many astrophotography cameras and accessories. It creates a secure, rigid connection, ensuring your imaging train remains free of flexure.\u003c\/p\u003e\n\u003cp\u003eThe key feature is the integrated stop ring, which operates independently of the main adapter thread. This allows you to thread your camera or accessory into position, then adjust its rotational angle for perfect framing before locking it securely in place. This eliminates the need to repeatedly thread and unthread your camera to align your sensor with your target.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e Creates a solid, threaded attachment between the ESATTO 4\" focuser and your imaging accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Rotational Adjustment:\u003c\/strong\u003e The independent stop ring lets you perfectly frame celestial objects by setting the camera angle without introducing tilt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Optical Path:\u003c\/strong\u003e Engineered to add very little length to the imaging train, preserving critical back focus for correctors, filter wheels, or off-axis guiders.\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 PrimaLuceLab Adapter for ESATTO 4\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to connect an astrophotography camera or accessory that has a male accessory thread to the large female draw tube thread of the ESATTO 4\" robotic focuser. It also includes a stop ring for precise rotational framing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the stop ring on this PrimaLuceLab adapter help with astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe stop ring is a separate, lockable collar. It allows you to thread your camera on, back it off slightly to achieve the perfect rotational angle for your target, and then tighten the stop ring against your camera to lock that position. This is crucial for composing mosaics or aligning your sensor to a specific orientation in the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter designed to be low-profile?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the adapter is designed to consume a minimal amount of optical path. This helps preserve as much back focus as possible, which is critical when using additional accessories like focal reducers, filter wheels, and off-axis guiders that have specific spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen imaging a large target like the North American Nebula (NGC 7000), how does this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor large targets like the North American Nebula (NGC 7000), framing is critical. The adapter's stop ring allows you to rotate your camera sensor to fit the nebula's irregular shape within your field of view perfectly, ensuring you capture the entire object as intended without having to crop the final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with a telescope like a Takahashi FSQ-106?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can use this adapter with any telescope, including a Takahashi FSQ-106, provided that the telescope is equipped with a PrimaLuceLab ESATTO 4\" robotic focuser. The adapter is specific to the ESATTO 4\" and will not thread onto other focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab adapter fit other focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed with threads to match the PrimaLuceLab ESATTO 4\" focuser's draw tube. It is not compatible with other models of ESATTO focusers or focusers from other manufacturers.\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\/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":44967866368285,"sku":"PLL-PL3600322","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Adapter-from-M110-to-M98-with-stop-ring-for-ESATTO-4__34762.1617396024.1280.1280.jpg?v=1684346224"},{"product_id":"primalucelab-adapter-esatto-2-for-arco-2","title":"PrimaLuceLab Adapter ESATTO 2\" for ARCO 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects the ARCO 2\" Rotator directly to the ESATTO 2\" Focuser\u003c\/li\u003e\n\u003cli\u003eCreates a combined rotator thickness of just 21mm\u003c\/li\u003e\n\u003cli\u003eMaintains a wide 51mm free aperture for the optical path\u003c\/li\u003e\n\u003cli\u003eEnables direct electronic control of the ARCO rotator via the ESATTO's dedicated 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\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 Adapter ESATTO 2\" for ARCO 2\"\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Adapter for ESATTO 2\" and ARCO 2\" physically and electronically unifies PrimaLuceLab's robotic focuser and rotator into a single, compact unit. This adapter creates a rigid imaging train with a combined rotator thickness of just 21mm, adding minimal backfocus to your setup. It maintains a clear optical path with a 51mm free aperture, enabling direct control of the ARCO 2\" rotator through the dedicated port on the ESATTO 2\" focuser to streamline cable management and software 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\u003eA 21mm Profile with 51mm Clear Aperture\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered to create a solid, low-profile connection between your ESATTO 2\" focuser and ARCO 2\" rotator. It adds only 1mm of thickness to the 20mm body of the ARCO, resulting in a combined rotator stack of 21mm. The design ensures that the large 51mm free aperture of the system is preserved, preventing vignetting even with full-frame sensors and fast optical 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\u003eUnified Control Through a Single ESATTO Port\u003c\/h3\u003e\n\u003cp\u003eThe primary advantage of this adapter is the complete integration it provides within the PrimaLuceLab ecosystem. By connecting the ARCO 2\" rotator to the ESATTO 2\" focuser's dedicated port, you eliminate the need for a separate data and power cable running from the rotator back to your control computer. All commands and power for the ARCO are routed through the ESATTO, simplifying your setup and creating a cleaner, more reliable remote imaging rig managed by the PLAY software.\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 primary purpose of the PrimaLuceLab ESATTO 2\" to ARCO 2\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to physically connect the \u003cstrong\u003ePrimaLuceLab ARCO 2\" rotator\u003c\/strong\u003e to the \u003cstrong\u003ePrimaLuceLab ESATTO 2\" robotic focuser\u003c\/strong\u003e. More importantly, it enables the ARCO rotator to be powered and controlled directly through a special port on the ESATTO, creating a single, integrated focusing and rotation unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much backfocus does the ESATTO to ARCO adapter add to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter itself adds only \u003cstrong\u003e1mm of thickness\u003c\/strong\u003e. The ARCO 2\" rotator has a native thickness of 20mm, so when connected to the ESATTO 2\" with this adapter, the total thickness of the rotator assembly is 21mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes using the ESATTO to ARCO adapter limit the clear aperture for my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed to prevent vignetting. The adapter and the connected ARCO 2\" rotator maintain a \u003cstrong\u003e51mm free aperture\u003c\/strong\u003e through the entire optical path, which is large enough to fully illuminate full-frame sensors without obstruction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I control the ARCO 2\" rotator when it's connected to the ESATTO 2\" with this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen connected via this adapter, the ARCO 2\" is controlled through the ESATTO 2\" focuser. You connect the ESATTO to your EAGLE or Windows computer via a single USB cable, and the PrimaLuceLab PLAY software or ASCOM driver will automatically detect and allow you to control both the focuser and the rotator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate power cable for the ARCO 2\" when using this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. One of the key benefits of this adapter is that it allows the ESATTO 2\" focuser to provide both power and data to the ARCO 2\" rotator. This simplifies cable management and reduces the number of connections required on your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with other PrimaLuceLab focusers, like SESTO SENSO?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed to connect the \u003cstrong\u003eARCO 2\" rotator\u003c\/strong\u003e to the \u003cstrong\u003eESATTO 2\" focuser\u003c\/strong\u003e. It is not compatible with other focusers or rotator models from PrimaLuceLab or other manufacturers.\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\/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":44967873511709,"sku":"PLL-PL3600412","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Primalucelab-adapter-esatto-2-for-arco-2-PL3600412__90732.1637163538.1280.1280.jpg?v=1684346341"},{"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":"primalucelab-adapter-esatto-3-5-lp-for-telescopes-with-large-3-3-sc-thread","title":"PrimaLuceLab Adapter ESATTO 3.5\" LP for telescopes with Large 3.3\" SC Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects ESATTO 3.5\" LP focuser to large-format Celestron telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned for the 3.3\" rear cell thread on select SCT and EdgeHD models\u003c\/li\u003e\n\u003cli\u003eLow-profile design preserves critical backfocus for imaging accessories\u003c\/li\u003e\n\u003cli\u003eEnsures a secure, rigid, all-threaded connection\u003c\/li\u003e\n\u003cli\u003eMaintains compatibility with Celestron .7x focal reducers\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\u003ePrimaLuceLab Adapter ESATTO 3.5\" LP for Telescopes with Large 3.3\" SC Thread\u003c\/h2\u003e\n      \u003cp\u003eThis PrimaLuceLab adapter creates a direct, secure threaded connection between the ESATTO 3.5\" LP robotic focuser and the large 3.3-inch rear cell of Celestron's larger Schmidt-Cassegrain and EdgeHD telescopes. It is engineered specifically for imagers who need to add a high-precision focuser without sacrificing critical backfocus. The adapter's minimal optical thickness is essential for building a rigid imaging train that can accommodate accessories like filter wheels and off-axis guiders, especially when using a focal reducer.\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 with Celestron 11\" and 14\" Telescopes\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is the key to upgrading your large Celestron telescope with the PrimaLuceLab ESATTO 3.5\" LP focuser. It replaces the standard visual back, threading directly onto the large 3.3-inch port found on Celestron SCT 11\" and 14\" models, as well as EdgeHD 925, 1100, and 1400 optical tubes. This all-threaded connection eliminates any potential for flexure or misalignment that can occur with slip-fit adapters, ensuring your entire imaging system is rigid from the telescope to the camera sensor.\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\u003ePreserving Backfocus with the Celestron .7x Reducer\u003c\/h3\u003e\n      \u003cp\u003eBackfocus is a finite and critical resource, particularly on SCT and EdgeHD systems using a focal reducer. This adapter is designed with an extremely low profile to consume the minimum possible optical path length. This ensures you have sufficient backfocus remaining for your camera and other accessories, making it fully compatible with the Celestron EdgeHD .7x focal reducers for the 925, 1100, and 1400 models. You can add the precision of the ESATTO focuser without compromising your ability to reach focus with a full imaging setup.\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\"\u003eWhich Celestron telescopes is the PrimaLuceLab ESATTO 3.5\" LP adapter compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is specifically designed for the large 3.3-inch rear thread found on \u003cstrong\u003eCelestron SCT (11\" and 14\")\u003c\/strong\u003e and \u003cstrong\u003eEdgeHD (925, 1100, and 1400)\u003c\/strong\u003e models. It is not compatible with smaller telescopes that use the standard 2-inch SC thread.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this ESATTO 3.5\" LP adapter with my Celestron EdgeHD 1100 and the .7x focal reducer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The adapter is engineered with a minimal optical thickness precisely for this scenario. It preserves the maximum amount of backfocus, allowing you to install the ESATTO 3.5\" LP focuser and still have enough optical path length for your camera and other accessories when using the Celestron .7x focal reducer for the EdgeHD 1100.\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 this specific PrimaLuceLab adapter for my ESATTO 3.5\" LP?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary benefit is achieving a \u003cstrong\u003erigid, all-threaded connection\u003c\/strong\u003e while consuming the \u003cstrong\u003eleast amount of backfocus possible\u003c\/strong\u003e. This prevents optical train flexure and ensures you can reach focus with a full imaging setup that includes a filter wheel, off-axis guider, and camera.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter connect to the standard 2\" SC thread found on smaller Celestron scopes?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is exclusively for the \u003cstrong\u003elarge 3.3\" SC thread\u003c\/strong\u003e. It will not fit the smaller, more common 2\" thread found on Celestron SCTs 9.25\" and smaller.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI want to add an ESATTO 3.5\" LP focuser to my Celestron 14\" SCT for imaging galaxies like the Whirlpool Galaxy (M51). Is this the correct adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the exact adapter required to connect the ESATTO 3.5\" LP focuser to the 3.3\" thread on your Celestron 14\" SCT. It will provide the secure mounting and backfocus preservation needed for deep-sky astrophotography.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat problem does the low-profile design of this ESATTO 3.5\" LP adapter solve?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt solves the common problem of \u003cstrong\u003erunning out of backfocus\u003c\/strong\u003e. Adding a focuser, filter wheel, and off-axis guider can easily exceed the available backfocus on an SCT, especially with a focal reducer. This adapter's minimal thickness ensures these components can fit within the optical path while still achieving sharp focus.\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      \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\/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":44968071299357,"sku":"PLL-PL3600362","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/primalucelab-adapter-esatto-35-lp-large-sct-thread-PL3600362__52239.1672256781.1280.1280.jpg?v=1684348666"},{"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":"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"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/primalucelab-esatto-robotic-focusers.oembed","provider":"David Astro","version":"1.0","type":"link"}