{"product_id":"qhyccd-qfocuser-standard-verison","title":"QHYCCD Q-Focuser Electronic Focuser - Standard Version","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eInstalls on the coarse focus shaft\u003c\/li\u003e\n\u003cli\u003e10kg maximum load capacity\u003c\/li\u003e\n\u003cli\u003e28.125 arcsecond step size\u003c\/li\u003e\n\u003cli\u003ePowered by 5V USB-C or 12V DC\u003c\/li\u003e\n\u003cli\u003eIncludes external temperature sensor\u003c\/li\u003e\n\u003cli\u003eASCOM and Linux compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eQHYCCD Q-Focuser Electronic Focuser - Standard Version\u003c\/h2\u003e\n\u003cp\u003eThe QHYCCD Q-Focuser Standard Version automates focusing with a geared motor rated for loads of about 10kg. This compact unit weighs only about 210g and offers a step size of 28.125 arcseconds for precise adjustments. It draws power directly from a 5V USB Type-C connection or an external 12V DC source, integrating seamlessly with Windows (ASCOM 6.5+) and Linux 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\u003eGeared Motor: 10kg Load Capacity and 28.125\" Step Size\u003c\/h3\u003e\n\u003cp\u003eThe Q-Focuser Standard Version uses a reducing (geared) motor, rated for a maximum load of about 10kg. The 28.125 arcsecond step size provides fine control for achieving sharp focus across your field.\u003c\/p\u003e\n\u003cp\u003eLike all geared focusers, this design introduces some mechanical backlash. QHYCCD notes that it can be calibrated in software such as N.I.N.A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Mounting with 4 Included Shaft Couplers\u003c\/h3\u003e\n\u003cp\u003eDesigned for broad compatibility, the Q-Focuser mounts to the coarse focus shaft of your telescope, the most common installation method for electronic focusers. The kit includes a versatile set of mounting plates with adjustable hole positions, allowing you to adapt the focuser's height and orientation to fit your specific telescope.\u003c\/p\u003e\n\u003cp\u003eFour shaft couplers are included to connect the focuser's 5mm motor shaft to focus shafts of 4mm, 5mm, 6mm, and 7mm. Please note that the included adapters are not compatible with the focusing mechanisms on Celestron Schmidt-Cassegrain scopes like the C8, C11, and RASA 14.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual 5V\/12V Power and External Temperature Sensor\u003c\/h3\u003e\n\u003cp\u003eThe Q-Focuser offers two ways to power the unit, ensuring flexibility in the field. For most setups, the 5V power supplied over the USB 2.0 Type-C data cable is sufficient, minimizing cable clutter. A 12V DC input is also available, with the 12V power adapter cable included.\u003c\/p\u003e\n\u003cp\u003eAn external temperature sensor is included in the box. The ASCOM driver displays the temperature, so your imaging software can track it during the night, for example to start a new autofocus run when the temperature changes.\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\u003eASCOM and Linux Control for Automated Focusing\u003c\/h3\u003e\n\u003cp\u003eFull integration with your imaging software is handled via the ASCOM platform on Windows (version 6.5 or later) and dedicated drivers for Linux systems. The QHYCCD ASCOM driver provides control over all essential functions, including focuser movement, setting the current position, defining travel limits, and maintaining motor torque to hold position.\u003c\/p\u003e\n\u003cp\u003eThis widespread compatibility ensures the Q-Focuser works out of the box with popular acquisition software like N.I.N.A., MaxIm DL, and any other program that supports the ASCOM focuser standard. This lets you add autofocus runs to your imaging sequences.\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\u003eQ-Focuser Standard vs. High Precision: Choosing the Right Model\u003c\/h3\u003e\n\u003cp\u003eQHYCCD offers two versions of the Q-Focuser, each designed for a different application. The choice depends on your telescope's focuser and your specific imaging needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Version (This Product):\u003c\/strong\u003e Mounts on the \u003cstrong\u003ecoarse focus shaft\u003c\/strong\u003e. Its geared motor provides a high 10kg load capacity, with some backlash that is calibrated in software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Precision Version:\u003c\/strong\u003e Mounts on the \u003cstrong\u003efine-focus shaft\u003c\/strong\u003e. It uses a non-reducing motor that produces almost zero backlash and allows for manual focusing even when installed. Its maximum load is about 7.5kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I power the QHYCCD Q-Focuser Standard with just a USB cable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Q-Focuser can be powered entirely by a 5V USB Type-C connection from your computer or USB hub. A 12V DC input is also available; QHYCCD says USB 5V power is enough in most cases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I handle the backlash with the Q-Focuser Standard Version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe backlash from the geared motor is a normal characteristic and is compensated for in software. Autofocus routines in programs like \u003cstrong\u003eN.I.N.A.\u003c\/strong\u003e and others that use the ASCOM platform have backlash compensation settings. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still focus my telescope by hand after installing the Q-Focuser Standard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Once the Standard Version is installed on the coarse focus shaft, manual focusing is not supported. All focus adjustments must be made electronically through your connected computer software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Q-Focuser handle my heavy camera and filter wheel on a large refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eQHYCCD rates the Standard Version for a maximum load of about 10kg. Add up the weight of your camera, filter wheel and other accessories and keep the total under that figure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Q-Focuser's temperature sensor help when imaging the Andromeda Galaxy (M31) all night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs ambient temperature drops during a long imaging session, your telescope's metal tube and glass optics contract, causing the focal point to shift. The included external temperature sensor lets your software follow the temperature, so you can set your imaging software to re-run autofocus when it changes by a set amount and keep M31 sharp through the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat focusers are compatible with the included couplers for the Q-Focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Q-Focuser Standard Version includes four couplers that adapt its 5mm motor shaft to telescope focuser shafts measuring \u003cstrong\u003e4mm, 5mm, 6mm, and 7mm\u003c\/strong\u003e in diameter. This covers many common focusers found on refractors and Newtonian reflectors. Always measure your focuser's shaft diameter before purchase to ensure compatibility.\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\u003eVersion\u003c\/td\u003e\n\u003ctd\u003eStandard (installs on the coarse focus shaft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eReducing (geared) motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Load\u003c\/td\u003e\n\u003ctd\u003eAbout 10kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Size\u003c\/td\u003e\n\u003ctd\u003e28.125 arcseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003eSome backlash, which can be calibrated in software such as N.I.N.A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Focus Support\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Interface\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0 Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e5V (USB Type-C) or 12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Temperature Sensor\u003c\/td\u003e\n\u003ctd\u003eSupported (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Systems\u003c\/td\u003e\n\u003ctd\u003eWindows (ASCOM 6.5 or later) and Linux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Couplers\u003c\/td\u003e\n\u003ctd\u003e5mm to 4, 5, 6 and 7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Size\u003c\/td\u003e\n\u003ctd\u003eAbout 43 x 39 x 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eAbout 210g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown Incompatibilities\u003c\/td\u003e\n\u003ctd\u003eCelestron Schmidt-Cassegrain scopes (C8, C11, RASA 14) with the default adapters\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\"\u003eQ-Focuser Standard Version\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\"\u003eExternal temperature sensor\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUSB Type-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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V power adapter cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCouplers (5mm to 4, 5, 6 and 7mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 4\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMounting plates\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\"\u003eScrews\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\"\u003eDriver download instructions card\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\/QHYCCD_Q-Focuser_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.qhyccd.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/qhyccd-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eQHYCCD 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":52942981169437,"sku":"QHY-110136","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/qhyccd-q-focuser-standard-1.jpg?v=1794617835","url":"https:\/\/davidastro.com\/en-us\/products\/qhyccd-qfocuser-standard-verison","provider":"David Astro","version":"1.0","type":"link"}