ZWO ASI 183MM USB 3.0 Mono Camera
ZWO ASI 183MM USB 3.0 Mono CameraZWO ASI 183MM USB 3.0 Mono CameraZWO ASI 183MM USB 3.0 Mono Camera

ZWO ASI 183MM USB 3.0 Mono Camera

Now: £718.00 (Save:  £80.00) Was:  £798.00✓ 2 year warranty


1x in stock shipped 1-2 working days

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Sale Ends Midnight, 3rd January 2023 subject to availability.

About this product

Model:  zwo_asi183mm
Part Number:  ASI183MM

ZWO's most sensitive camera!  Peak Q.E. reaches 84%!

The ASI183MM-Pro features Sony's IMX183 1" CMOS sensor with a massive 5496x3672 resolution!  That's 20.48 megapixels!


  • Sony IMX183 Sensor
  • Extremely low read noise - 1.6e @30db gain
  • 12Bit ADC - provides real 12bit dynamic range
  • Electronic shutter - no issues with vibrations sometimes found in mechanical shutters
  • USB3.0 Port (back compatible with USB2.0) - 19fps@5496x3672  308fps@320X240
  • AR coated protective window - all light can pass
  • Compatible with Windows / Mac OS / Linux

IMX183 Sensor

13.2mm x 8.8mm, 15.86mm diagonal, approximately 20.18 megapixels. 

Back illuminated, high sensitivity with 2.4μm pixels. 

All ZWO cameras include a 2-year warranty. 

Camera Field of View Simulator

Astrophotography Performance

The ASI183 cameras has a very large full well capacity (15000e for such small pixel size, 1.6e read noise @ 30DB, and 12stops dynamic range @ Gain=0). Modern firmware design minimises amplifier glow for maximum performance.

High Speed

Fast FPS can be used when solar and lunar imaging, as well as for live viewing/EAA.  The high speed readout can also be used for real-time focusing, true 'lucky' imaging of double stars and other small objects, planetary imaging of the major planets in the solar system, and more.

10Bit ADC

  • 5496×3672    19fps
  • 3840×2160    41.04fps
  • 1920×1080    80.10fps
  • 1280×720      117.30fps

12bit ADC    

  • 5496×3672    19fps
  • 3840×2160    36.12fps
  • 1920×1080    70.48fps
  • 1280×720      103.23fps

High QE

Sony’s back-illuminated Exmor R technology provides excellent Deep Sky performance.  ASI183 QE peak reaches a remarkable 84%.  In the Ha channel, QE is still over 60%.

Having high QE means more of the light that enters your telescope and reaches the sensor is actually used.  With 84% peak Q.E. and no less than ~50% within the visible spectrum, the ASI183 utilises a high percentage of the available light so improving signal quality.

USB Ports

USB 3.0 Port: Provides 5Gb bandwidth making it possible for the ASI183 to run at 19 fps (12bit, normal mode) or 19 fps (10bit, high speed mode) at full resolution (20.18 Meg).

ST4 Port: can be used connect with auto guide port of mount, for guiding.

ASI183MM Mechanical Drawing


What's in the box

  • ASI183MM Camera
  • T2-1.25" Nosepiece Adapter
  • 1.25" Cap
  • 2" Cap
  • 2-metre USB 3.0 Cable
  • ST4 Cable
  • T2-1.25" Adapter
  • Quick Start Guide
  • Driver CD


Sensor 1″ CMOS IMX183CLK-J/CQJ-J
Diagonal 15.9mm
Resolution 20.18Mega Pixels 5496*3672
Pixel Size 2.4μm
Bayer Pattern None
Shutter Rolling shutter
Exposure Range 32µs-2000s
ROI Supported
Read Noise 1.6e @30db gain
QE peak 84%
Full well 15ke
ADC 12bit
Interface USB3.0/USB2.0
Adaptor M42X0.75
Protect window AR window
Dimensions 62mm Diameter x 36mm
Weight 120g
Back Focus Distance 6.5mm
Working Temperature -5°C—45°C
Storage Temperature -20°C—60°C
Working Relative Humidity 20%—80%
Storage Relative Humidity 20%—95%


Supported Resolutions:

10Bit ADC

  • 5496×3672 19fps
  • 3840×2160 41.04fps
  • 1920×1080 80.10fps
  • 1280×720 117.30fps
  • 640×480 169.92fps
  • 320×240 308.17fps

12bit ADC

  • 5496×3672 19fps
  • 3840×2160 36.12fps
  • 1920×1080 70.48fps
  • 1280×720 103.23fps
  • 640×480 149.53fps
  • 320×240 271.19fps

Additional resolutions can be user defined.

Downloads / Manuals

The following manuals and downloads are available for this product:


ZWO Software and Drivers


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