ZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter Wheel
ZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter WheelZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter WheelZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter Wheel
ZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter WheelZWO ASI 183GT USB 3.0 Cooled Mono Camera  with Internal Filter Wheel

ZWO ASI 183GT USB 3.0 Cooled Mono Camera with Internal Filter Wheel

£1,399.00✓ 2 year warranty


Out of stock due 15-20 working days

About this product

Model:  zwo_asi183gt
Part Number:  ASI183GT

New 'GT' version features an internal filter wheel

The new 'GT' range of ZWO cameras have all the great features and performance of the 'Pro' range but now include an integrated 5-position, ultra-quiet electronic filter wheel as well as new features such as 12v power distribution.

The all-in-one design allows you to reduce cable clutter needing only one power and one USB cable for the camera and filterwheel. Combined with the on-board USB2.0 hub you can reduce cables even further.

Integrated or modular? 

There is a lot to like about this camera's new integrated design but, for many, the decision whether to buy an ASI 183GT with integrated filter wheel vs a ASI 1600 MM Pro camera and separate EFW filter-wheel will be determined by how many filters they want to use (5x or 7x). 


  • Sony IMX183 Sensor
  • 256MB DDR3 Memory Buffer
  • Regulated two-stage Tec-Cooling: 40-45 degree below ambient temperature
  • 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.

DDR Memory Buffer

ZWO Pro cameras feature a 256MB DDR3 memory buffer to improve data transfer stability and reduce amp-glow issues caused by slow data transfer speed when using a USB2.0 port. 

All ZWO cameras include a 2-year warranty. 

Camera Field of View Simulator

Astrophotography Performance

Very large 15000e full well capacity, 1.6e read noise @ 30DB and 12stops dynamic range @ Gain=0.  Utilise modern firmware design to minimise amplifier glow. 

Internal EFW

The internal 5-position electronic filter wheel (EFW) can accept both 1.25” and 31mm filters. The EFW is driven by a whisper quiet high grade stepper motor.

Important Note: The thickness of the 1.25” filter cannot exceed 7mm (without threads), and the thread must be shorter than 2.5mm to avoid the filter wheel striking the camera housing.

The body of the EFW is CNC milled from an aircraft grade Aluminium block finished in an attractive and hardwearing anodised finish. The inner surface of the EFA has been especially treated to prevent internal light reflections.

The camera body has 24 heat radiating grooves fitted with dual maglev fans to ensure the temperature difference before and after cooling remains between 40-45℃ below ambient temperature. (Tested at 30℃). The lower the ambient temperature is, the lower the delta-T will be



Multiple Ports

12V power supply, USB3.0 port & USB 2.0 Hub.

55mm Back Focus Solutions

Mechanical Drawing

What's in the box

  • ASI183GT Camera Body
  • 2-metre USB 3.0 Cable
  • 0.5m USB 2.0 Cable
  • 0.5m USB 2.0 Type C Cable
  • M42-M48 Adapter
  • M42-M48F 12mm Extender
  • M42-M48F 16.5mm Extender
  • M42 Spacers x 3
  • Filter Masks
  • M2 Screws


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
DDRIII Buffer 256MB
Interface USB3.0/USB2.0
Adaptor M42X0.75
Protect window AR window
Dimensions 78mm Diameter
Weight 410g
Back Focus Distance 6.5mm
Cooling Regulated Two Stage TEC
Delta T 40°C-45°C below ambient
Camera Power consumption 650mA at 5V
Cooler Power consumption 12V at 3A Max
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


Customer reviews

Be the first to Write a Review for this item!


Please fill in the form below to ask a question.