{"title":"ZWO ASI GT Cameras with Built-in Filter Wheel","description":"\u003cp\u003eZWO ASI GT cameras are cooled mono astronomy cameras with an electronic filter wheel built into the camera body. Combining the two keeps the imaging train short and removes one USB device and one set of adapters from your setup.\u003c\/p\u003e\u003cp\u003eThe collection includes the ASI183GT Mono, with small pixels suited to shorter focal lengths, and the ASI1600GT Mono, with a larger 4\/3 sensor. Both fit imagers starting LRGB and narrowband work who want a compact, single-unit camera and filter wheel.\u003c\/p\u003e","products":[{"product_id":"zwo-asi183gt-mono","title":"ZWO ASI183GT Mono","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e20.18 Megapixel Sony IMX183 monochrome sensor for high-resolution imaging\u003c\/li\u003e\n\u003cli\u003eIntegrated 5-position filter wheel for 1.25\" or 31mm unmounted filters\u003c\/li\u003e\n\u003cli\u003ePowerful two-stage TEC cooling reduces thermal noise by cooling the sensor 40-45°C below ambient\u003c\/li\u003e\n\u003cli\u003e2.4µm pixel size captures fine detail in galaxies and nebulae\u003c\/li\u003e\n\u003cli\u003e256MB DDR3 buffer ensures stable data transfer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO ASI183GT Mono Cooled Camera\u003c\/h2\u003e\n\u003cp\u003eThe ZWO ASI183GT Mono combines the high-resolution 20.18 MP Sony IMX183 sensor with an integrated 5-position filter wheel, creating a streamlined deep-sky imaging platform. Its 2.4µm pixels are perfectly matched to short-focal-length refractors and imaging Newtonians, resolving intricate detail in faint nebulae and distant galaxies. A 256MB DDR3 buffer ensures stable frame delivery over USB 3.0 at up to 19 FPS, while two-stage TEC cooling drops sensor temperature up to 45°C below ambient to minimize thermal noise during long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated 5-Position Filter Wheel for LRGB \u0026amp; Narrowband\u003c\/h3\u003e\n\u003cp\u003eThe core of the ASI183GT is its internal, motor-driven 5-position filter wheel, which eliminates the need for a separate external wheel and additional cables. This integrated design reduces weight, potential flexure, and simplifies your imaging train. The wheel accepts standard 1.25\" mounted or 31mm unmounted filters, allowing you to load LRGB and narrowband filters (like Ha, OIII, and SII) for capturing full-color and scientific data in a single session without disturbing 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\u003e20.18 Megapixels at 2.4µm: High-Resolution Deep Sky\u003c\/h3\u003e\n\u003cp\u003eWith a resolution of 5496x3672, the ASI183GT's back-illuminated Sony sensor delivers an immense field of view packed with detail. The small 2.4µm pixels provide excellent sampling for telescopes with focal lengths from 400mm to 800mm, rendering sharp, pinpoint stars and resolving fine structures within targets like the Whirlpool Galaxy (M51) or the Dumbbell Nebula (M27). The sensor's 84% peak quantum efficiency and low 1.6e read noise mean that more of the light you collect is converted into usable signal, revealing fainter structures with less noise.\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\u003eASI183GT vs. ASI183MM Pro: An Integrated System\u003c\/h3\u003e\n\u003cp\u003eThe ASI183GT builds directly on the success of the ASI183MM Pro, using the exact same high-performance IMX183 monochrome sensor. The primary distinction is the GT's all-in-one design.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eASI183MM Pro Advantage:\u003c\/strong\u003e The Pro model offers more flexibility. If you already own a 7 or 8-position filter wheel or require larger 36mm or 2\" filters for a full-frame optical system, the ASI183MM Pro allows you to build your own custom imaging train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASI183GT Advantage:\u003c\/strong\u003e The GT model simplifies your setup significantly. By integrating the 5-position 1.25\"\/31mm filter wheel, ZWO reduces cable clutter, potential tilt, and overall system weight. The built-in USB 2.0 hub and 12V power distribution further streamline connections to guide cameras or electronic focusers. For imagers using short refractors where back-focus and weight are critical, the GT is the more compact and manageable solution.\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\u003eStable Imaging with 256MB DDR3 Buffer \u0026amp; TEC Cooling\u003c\/h3\u003e\n\u003cp\u003eLong-exposure astrophotography demands thermal and data stability. The ASI183GT uses a two-stage thermoelectric cooler that actively reduces sensor temperature by up to 45°C below ambient, dramatically cutting thermal current and resulting in cleaner, lower-noise images. This cooling is essential for narrowband imaging where exposures can last several minutes. To prevent data loss or corruption during transfer, the camera features an onboard 256MB DDR3 memory buffer, ensuring every frame is transmitted reliably to your computer, even on slower USB 2.0 connections.\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 filters should I use with the ZWO ASI183GT Mono?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a complete color imaging setup, you should start with a set of \u003cstrong\u003e1.25\" LRGB (Luminance, Red, Green, Blue) filters\u003c\/strong\u003e. To capture faint emission nebulae like the Heart Nebula (IC 1805), adding \u003cstrong\u003enarrowband filters\u003c\/strong\u003e such as Hydrogen-alpha (Ha), Oxygen-III (OIII), and Sulphur-II (SII) is highly recommended. The integrated 5-position wheel allows you to load L, R, G, B, and an Ha filter for a versatile setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ASI183GT a good match for my 8\" f\/4 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. An 8\" (203mm) f\/4 Newtonian has a focal length of about 812mm. The ASI183GT's 2.4µm pixels will give you an image scale of approximately 0.6 arcseconds per pixel, which is ideal for high-resolution imaging of galaxies and planetary nebulae under good seeing conditions. The camera's 15.9mm diagonal sensor will also provide a wide field of view to frame larger targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need an external power supply for the ASI183GT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The camera requires a \u003cstrong\u003e12V 3A DC power source\u003c\/strong\u003e to operate, including its TEC cooler, filter wheel, and USB hub. The camera can be powered by the ASIAIR, a dedicated AC adapter, or a portable 12V battery pack. The camera does not run on USB power alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the back focus of the ASI183GT camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ZWO ASI183GT has a back focus of \u003cstrong\u003e17.5mm\u003c\/strong\u003e from the front M42 thread plate. The included extenders let you reach the standard 55mm back focus required by most flatteners and reducers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 256MB DDR3 buffer help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 256MB DDR3 memory buffer acts as a temporary storage space for image frames before they are transferred to the computer. This prevents data loss, especially over USB 2.0 ports. It ensures that your long exposures are stable and free from data corruption, even if your computer is busy with other tasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ASI183GT for planetary imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the ASI183GT is optimized for deep-sky objects, it can be used for planetary imaging. Its high resolution and small pixels are an advantage. However, its maximum frame rate of 19 FPS is slower than dedicated planetary cameras. For serious planetary work, a camera with a higher frame rate like the ZWO ASI462MC or ASI290MM would be a better primary choice.\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\u003eSensor\u003c\/td\u003e\n\u003ctd\u003e1\" Sony IMX183 CMOS Mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e5496x3672 (20.18 MP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e2.4µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003e13.2mm x 8.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Diagonal\u003c\/td\u003e\n\u003ctd\u003e15.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Quantum Efficiency (QE)\u003c\/td\u003e\n\u003ctd\u003e84%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull Well Capacity\u003c\/td\u003e\n\u003ctd\u003e15,000e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRead Noise\u003c\/td\u003e\n\u003ctd\u003e1.6e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC\u003c\/td\u003e\n\u003ctd\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Frame Rate\u003c\/td\u003e\n\u003ctd\u003e19 FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutter\u003c\/td\u003e\n\u003ctd\u003eRolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExposure Range\u003c\/td\u003e\n\u003ctd\u003e32µs - 2000s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Filter Wheel\u003c\/td\u003e\n\u003ctd\u003e5-position (1.25\" mounted or 31mm unmounted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eRegulated Two-Stage TEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Delta\u003c\/td\u003e\n\u003ctd\u003e40°C - 45°C below ambient\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Buffer\u003c\/td\u003e\n\u003ctd\u003e256MB DDR3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus\u003c\/td\u003e\n\u003ctd\u003e17.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Window\u003c\/td\u003e\n\u003ctd\u003eAR Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Port\u003c\/td\u003e\n\u003ctd\u003eUSB 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Hub\u003c\/td\u003e\n\u003ctd\u003e2x USB 2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e12V @ 3A (required to operate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Threads\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e110mm x 110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.76 lb\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\"\u003eASI183GT Camera Body\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM42-1.25\" T-Mount 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\"\u003e1.25\" Cover\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\"\u003e21mm M42 Extender\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\"\u003e16.5mm M42-M48 Extender\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\"\u003eM42-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\"\u003eUSB 3.0 Cable (2m)\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 2.0 Cables (0.5m)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFilter Masks (1.25\" \u0026amp; 31mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 Set\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eScrews and Spacers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 Set\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"ZWO 12V 5A AC\/DC Adapter","offer_id":44967450312989,"sku":"ZWO-ASI183GT-01","price":1945.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO_ASI183GT_Mono-1__53112.1597079039.1280.1280.jpg?v=1684342225"}],"url":"https:\/\/davidastro.com\/collections\/zwo-asi-gt-cameras-with-built-in-filter-wheel.oembed","provider":"David Astro","version":"1.0","type":"link"}