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ZWO ASI 183 Pro Cooled Monochrome CMOS Telescope Camera

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  • Regular price $999.00

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Accessories Added

  • Don't forget your Power Supply to power the cooling!
  • Great for Planetary and Deep Space Imaging
  • Sony Back-Illuminated CMOS Sensor 
  • Extremely Low Noise With 12 Stops Dynamic Range
  • 20.2 megapixels (5496 x 3672 with 2.4 Micron Pixels)


ZWO ASI 183 Pro Cooled Monochrome CMOS Telescope Camera

As a deep space camera, the ASI 183 cameras are incredibly efficient. They can be cooled to temperatures 45 degrees Centigrade below the ambient temperature bringing thermal noise buildup down to a minimum. You can take pictures up to 33 minutes with this camera, but a read noise of 1.6 to 3.7 electrons (depending on gain settings), exposures that long are rarely needed. When shooting deep space images at full resolution this camera pairs very exceptionally well with telescopes 300mm to 600mm in focal length, and when binned 2x2, telescopes 1,000mm to 1,500mm.

As a planetary and solar camera, the 183 is exceptional. For solar imaging, this camera can record full 20.2mp videos at 19 frames per second and capture the entire sun with 1350mm focal length! If you’re the kind of maverick that has a need for speed shooting planets like Jupiter and Saturn, the ASI 183 clocks out at 308.17 frames per second at 320x240 resolution!

Sony IMX183CLK-J & IMX183CQJ-J CMOS Sensor

The Sony IMX183CLK-J (Monochrome) & IMX183CQJ-J (color) CMOS Sensors offers a higher resolution, high quantum efficiency and which just as efficient signal to noise ratios as it's older brother the ASI 1600. These sensors can record 20.2-megapixel video at 19 frames per second, which is 48% more resolution than Ultra High Definition 4k video! These sensors offer 12 stops of dynamic range when the gain settings are at 0 and offer a low read noise 1.6 electrons when the gain is set at 30DB. The size of the sensor is approximately 15.9mm, the same size as most micro 4/3rds cameras. The sensor is also back-illuminated for higher QE.

High Quantum Efficiency

The ASI 183 is very efficient when it comes to light gathering. The camera has a peak EQ 84%, the H-alpha emission line is recorded at 60% and doesn't record less than 50% in the visible spectrum.

High-Speed Video Recording

The ASI 183 is fast, which gives it the ability to focus in real time and get the most data possible for your Solar and Planetary imaging setups. 

10Bit ADC
5496 x 3672 19fps
3840 x 2160 41.04fps
1920 x 1080 80.10fps
1280 x 720 117.30fps
640 x 480 169.92fps
320 x 240 308.17fp

12bit ADC
5496 x 3672 19fps
3840 x 2160 36.12fps
1920 x 1080 70.48fps
1280 x 720 103.23fps
640 x 480 149.53fps
320 x 240 271.19fps

USB 3.0 & ST4 Ports

The ASI 183 cameras use a USB 3.0 interface that provides a 5Gb bandwidth. The non-cooled version of the camera also comes with an ST-4 guide port so the camera can directly connect to your mount for autoguiding.


ADC12 bit
Back focus6.5mm
Bayer MatrixMonochrome
Camera ConnectionM42 x 0.75
Delta T45°C Below Ambient
Dynamic Range12 Stops
Free ShippingYes
Full Rez Frame Rate19fps
Full Well15ke
Max Frame Rate308.17fps
Mega Pixels20.2 mp
Peak QE84%
Pixel Array5496 x 3672
Pixel Size2.4 microns
Power Consumption12v 3A DC
Read Noise3e
Sensor Diagonal15.9mm
Sensor TypeCMOS
SensorSony IMX183CLK_J


What Is In The Box

  • ZWO ASI 183 CMOS Camera Body
  • 1.25" nosepiece
  • 1.25" cover
  • 2" cover
  • USB 3.0 Cable

Included With Cooled Versions

  • Nylon Camera Bag
  • 21mm M42 Extender
  • 16mm M42 extender
  • 11mm female M42 to Female M42 extender
  • two .5 meter USB 2.0 cables
  • two spacers

Included With Non-cooled Versions

  • ST4 Cable (Non-cooled version only)
  • t2-1.25" Adpater(Non-cooled version only)

Customer Reviews

4.8 Based on 4 reviews
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Stephen G.
United States

Wonderful once you solve amp glow

I’d heard of this issue but was shocked when it hit...yikes. But some excellent advice from ZWO to make sure you calibrate with a master dark exactly set to the same gain as your light, and without optimizing or using bias frames [PixInsight] and it goes away. Phew... Shooting at Unity Gain, 111 for this camera.

marvin s.
United States

ZWO ASI 183 Pro mono cooled

OPT same-day shipped the 183 pro and it arrived 2 days later via USPS. I bench tested the camera and it appeared to be working correctly. However, be advised that this relatively new CMOS camera requires the latest drivers from the ZWO website be installed. This includes both the ASI_camera_driver and the ASI_camera_ascom driver for Windows 10. I found that both SGP 3.03 and Sharpcap 3.2 will run this camera with the updated drivers.


Terrific camera, great OPT ordering

The camera is perfect for high-resolution imaging with shorter focal-length setups, such as my William Optics Z61. Everything worked right out of the box, cooler gets to -20C without breaking a sweat, and the low-noise images that result are detailed and easy to stack. What little amp-glow there is calibrates out with dark frames with no problem. Looking forward to doing narrow-band imaging with it soon! Typical good OPT ordering experience: ordered on Wednesday, had it on Thursday.

Larry S.
United States

Great camera

This is my first dedicated astro-camera, used DSLRs previously. Easy to set up and use, all necessary adapters and cables were included with the camera. Seamless interface to guiding camera (ASI290MM Mini) and filter wheel (EFW8), simplifies cabling with built-in hub. Excellent results so far with my 73mm APO.