QHY 183 Cooled Color CMOS Telescope Camera

  • Anti-dew heater to eliminate condensation and ice buildup
  • Anti-amp glow circuit to reduce long exposure amp glow
  • 128 MB DDR memory to speed up download times


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  • Regular price $699.00

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QHY 183 Cooled Color CMOS Telescope Camera

The QHY 183 Cold MOS Cooled Color CMOS Camera is a one-inch, 20.48 megapixel back-illuminated color CMOS camera with a peak QE of 74-percent. The pixel size is 2.4 um, yielding high-resolution with modest size telescopes. The camera is capable of producing 5fps up to at 20.48 megapixels. It has a two-stage TEC that cools the sensor to Neg.40-degrees C below ambient. The ADC is 12-bit / 16-bit with a read noise as low as 1e-! The computer interface is USB 3.0 and exposure times can be set from 50 us to 3600 sec.

Sony's Image Sensor IMX183 BSI is a back-illuminated CMOS image sensor with improved sensitivity and noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It retains the advantages of CMOS image high-speed operation while dramatically improving sensitivity.

The QHY183C has a 128 MB DDRII full frame memory buffer. A QHY183C 16-bit image is about 40 MB, so 128 MB of memory can easily buffer a full frame for transfer to the computer using QHY183C software with native single-frame shooting function, instead of intercepting a frame from a continuous video transmission. This makes data transfer to the computer stable and reliable because there is no USB bandwidth or busy CPU problems.

The QHY183C utilizes the Anti-Dew features common to the QHY COLDMOS cameras. A heated optical window prevents exterior dew from forming, and the CMOS chamber has a desiccant plug socket to prevent moisture from forming on the sensor at cold temperatures.

The QHY183C incorporates QHY's Anti-Amp Glow technology to significantly reduce typical CMOS amplifier glow to a minimum, allowing excellent calibration by subtracting a dark frame.

Vendor Number: 100090


ADC12 bit
Antidew HeaterYes
Back Focus17.5 mm
Builtin Image Buffer128MByte DDR2 memory
Camera ConnectionFemale M42x.075
Color or MonoColor
Computer InterfaceUSB3.0
Delta T40C
Dynamic Range12 Stops
Free ShippingYes
Full Rez Frame Rate15fps
Full Well15.5ke
Max Frame Rate25fps
Mega Pixels20.5 mp
Peak QE74%
Pixel Array5544 x 3694
Pixel Size2.4 microns
Read Noise2.7e
Sensor Diagonal16 mm
Sensor TypeCMOS
SensorSony IMX183
Telescope InterfaceM42x0.75
Weight1.43 lb