{"product_id":"gpm174m","title":"ToupTek GPM174M Monochrome Guide Camera","description":"\u003cdiv class=\"dcs-product-guide\"\u003e\n\u003ch2\u003eA wider view for finding guide stars\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-1.jpg?v=1789312456\" alt=\"ToupTek GPM174M monochrome guide camera side view\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eToupTek GPM174M\u003c\/strong\u003e combines a large monochrome sensor with 5.86µm pixels for autoguiding through a guide scope or compatible off-axis guider. Its Sony IMX249 sensor records a 1920 × 1200 image, giving you room to locate and select a suitable guide star.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-5.jpg?v=1789312511\" alt=\"GPM174M field of view and connection features\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy choose the GPM174M?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge 1\/1.2-inch sensor:\u003c\/strong\u003e an 11.3 × 7.03mm imaging area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal shutter:\u003c\/strong\u003e exposes the whole frame simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonochrome capture:\u003c\/strong\u003e useful for guiding and lunar or planetary imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple connections:\u003c\/strong\u003e USB-C supplies power and data; ST4 connects to a compatible mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in frame buffer:\u003c\/strong\u003e supports stable image transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-6.jpg?v=1789312526\" alt=\"GPM174M Sony IMX249 monochrome sensor\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-7.jpg?v=1789312541\" alt=\"GPM174M quantum efficiency curve\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-8.jpg?v=1789312558\" alt=\"GPM174M gain read noise full well and dynamic range charts\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eConnecting your guiding setup\u003c\/h2\u003e\n\u003cp\u003eFit the camera to your guide scope or compatible OAG, connect USB and select the camera in your guiding software. Add the ST4 cable when using the mount’s guide port. Guiding corrections are calculated by software; the camera does not guide independently. Check OAG prism coverage and available focus travel before choosing adapters.\u003c\/p\u003e\n\u003cp\u003eFull-resolution capture reaches 16.2fps at 8-bit or 8.5fps at 12-bit. A smaller region of interest can increase frame rate. The USB-C connector operates at USB 2.0 speed, and cooling is passive.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-10.jpg?v=1789312587\" alt=\"GPM174M USB-C and ST4 guide ports\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-11.jpg?v=1789312601\" alt=\"GPM174M off-axis guider and extender connection diagram\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSensor\u003c\/th\u003e\n\u003ctd\u003eSony IMX249 monochrome CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eResolution \/ pixels\u003c\/th\u003e\n\u003ctd\u003e1920 × 1200 (2.3MP) \/ 5.86µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFormat \/ area\u003c\/th\u003e\n\u003ctd\u003e1\/1.2-inch \/ 11.3 × 7.03mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShutter \/ ADC\u003c\/th\u003e\n\u003ctd\u003eGlobal \/ 12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eExposure\u003c\/th\u003e\n\u003ctd\u003e0.42ms–1000s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRead noise\u003c\/th\u003e\n\u003ctd\u003e3.96–6.48e⁻, gain dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFull well \/ peak QE\u003c\/th\u003e\n\u003ctd\u003e33.4ke⁻ \/ approximately 89%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInterfaces\u003c\/th\u003e\n\u003ctd\u003eUSB 2.0 Type-C; ST4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBack focus\u003c\/th\u003e\n\u003ctd\u003e8.5mm; 12.5mm with CS-mount; 17.5mm with C-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions \/ camera weight\u003c\/th\u003e\n\u003ctd\u003e37mm diameter × 72.4mm \/ approximately 70g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003ePerformance figures depend on gain and capture settings.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-9.jpg?v=1789312573\" alt=\"GPM174M mechanical dimensions\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSoftware and accessories\u003c\/h2\u003e\n\u003cp\u003eToupTek lists PHD2, SharpCap and FireCapture compatibility through appropriate drivers. Check software and operating-system support before purchase. The product page specifies an AR-coated window.\u003c\/p\u003e\n\u003ch2\u003eWhat’s included?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGPM174M monochrome camera\u003c\/li\u003e\n\u003cli\u003e2m USB Type-A to Type-C cable\u003c\/li\u003e\n\u003cli\u003e2m ST4 guide cable\u003c\/li\u003e\n\u003cli\u003e1.25-inch nosepiece\u003c\/li\u003e\n\u003cli\u003eCS-mount ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGuide scopes, off-axis guiders and additional optics are sold separately. Contact Dark Clear Skies for help matching your setup.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-12.jpg?v=1789312618\" alt=\"GPM174M camera and included accessories\" loading=\"lazy\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Touptek","offers":[{"title":"Default Title","offer_id":55659973345656,"sku":"GPM174M","price":279.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/touptek-gpm174m-1.jpg?v=1789312456","url":"https:\/\/www.darkclearskies.co.uk\/products\/gpm174m","provider":"Dark Clear Skies ","version":"1.0","type":"link"}