ZWO ASI185MC Color Astronomy Camera - Cooled-Discontinue

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ZWO ASI185MC Color Astronomy Camera - Cooled-Discontinue   Discontinued
Item # ZWO-ASI185MC-C
  • The ZWO ASI185MC Color Cooled Astronomy Camera sports a Sony IMX185 CMOS sensor that provides exceptionally low read noise (3.3 e) and high sensitivity particularly in the IR range.
  • Especially suited for deep sky imaging with integrated TEC cooling. Able to cool to -35 to -40ºC below ambient.
  • Sony IMX185 CMOS sensor features an image array of 1944 x 1224 and a pixel size of 3.75 µm x 3.75 µm.
  • The ZWO ASI185MC Color Astronomy Camera has a pixel size identical to that of the ASI224MC but with a bigger chip size.


ZWO ASI185MC Cooled Astronomy Camera - Color

Housing a Sony IMX185 sensor, with 2.3M 3.5µm pixels in a 1944 x 1224 format, the ZWO imaging camera is a beautiful piece of work. The IMX185 sensor housed inside this device has an extremely low read noise of 3.3 e, and is extremely sensitive- especially in the near infrared spectrum. Compared to other models such as the ASI224MC, the ZWO ASI185MC color camera has a larger sensor with the same size pixels, and a slight but noticeable increase in read noise over the other model. Superb at any astronomical imaging application imaginable, the ZWO ASI185MC body has a high speed USB 3.0 port, an ST4 guide port, a standard 2" interface with M42 x 0.75 internal threads, a 1/4" tripod thread mount on the back, an ST4 guide port, a standard 2" interface with M42 x 0.75 internal threads, a 1/4" tripod thread mount on the back, and an IR-cut window. The included software is compatible with Mac, Windows, and Linux operating systems. The focus distance to the sensor is 12.5mm.

This cooled version incorporates active TEC temperature control for the ability to cool the sensor to 35C to 40C degrees below ambient.  This enhanced cooling control offers the best image stability for longer imaging sessions.  

Sony IMX185 CMOS Sensor Features


  • Provides exceptionally low read noise (3.3 e).
  • The IMX185 has an image array of 1944 x 1224 and a pixel size of 3.75 microns square.
  • Supports 1/2 full HD optical size.
  • 1120 mV pixel sensitivity.
  • Sensitivity has been enhanced in the near IR region by up to 1.8X that of a similar sensor.
  • The Sony IMX185 is an Exmor high performance CMOS sensor with quick processing, low noise, and low power diffusion by utilizing column parallel A/D conversion.
  • Everything required to control your ZWO Astronomy Camera is readily available at the ZWO website.

ZWO ASI185MC Color CMOS Astronomy Camera Specifications


  • Sensor: Sony 1/1.9" IMX185 Color CMOS
  • Resolution: 2.3M
  • Image Array: 1944 x 1224
  • Pixel Size: 3.75 µm
  • Max Frame Rate at Full Resolution: 1080 FPS
  • Max Frame Rate at 640 x 480: 268.4 FPS
  • Window: IR-Cut
  • Guide Port: ST4
  • Shutter: Global
  • Exposure Range: 32us - 1000s
  • Read Noise: 3.3e
  • Interface: USB3.0/USB2.0
  • Bit Rate: 12bit output (12 bit ADC)
  • Adapter: 2" to 1.25"/ M42 x 0.75
  • Dimensions: 62 mm Diameter by 36 mm
  • Weight: 120g
  • Working Temperature: -5∫C - 45∫C
  • Working Relative Humidity: 20% - 80%

ZWO Product Number: ASI185MC-COOL

Additional Information

Additional Information

Manufacturer ZWO
Color or B&W? Color
Sensor Type CMOS
Series ZWO ASI
Pixel Size < 5 Microns
Chip Diagonal 8.1mm - 10mm
Sensor Manufacturer Sony
# of Sensors Single Sensor
Sensor Model IMX185
Pixel Size in Micrometers 3.75 µm x 3.75 µm
Pixel Array 1944 x 1244
Sensor Diagonal 8.58mm
Minimum Exposure Time 0.000032 seconds
Maximum Exposure Time 1000 seconds
Shutter Type Rolling Electronic
Filter Wheel No
Interface USB 3.0
Operating System Compatibility Linux (3rd Party), Mac, Windows
Camera Cooling Type Thermo-electric Cooling (TEC)
Camera Body Dimensions 62mm x 36mm
Camera Weight 4.23 oz.
Included Items

Included Items

  • ZWO ASI185MC Cooled Color Astronomy Camera
  • 2.5mm All Sky Lens
  • 1.25" Nosepiece
  • 1.25" Clear Window
  • 2 m USB Cable
  • 2 m ST4 Guider Cable
  • Software
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