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The QHYCCD medium size COLDMOS camera series includes all of our cooled cameras with CMOS sensor sizes from 1 inch to Full Frame (35mm Format) and includes BSI (back-illuminated) as well as FSI (front-illuminated) CMOS sensors in both monochrome and color cameras.

  • USB 3.0
  • Front-illuminated and Back-illuminated Sensors
  • Lightweight Compact Design
  • Regulated TE Cooling Delta -35C to -40C
  • 128 MB DDR Frame Buffer
  • ST-4 Compatible Guide Port
  • Filter Wheel Port
  • Anti-Noise Technology
  • Anti-Amp Glow Technology
  • Anti-Dew Technology

All models include a heated optical window to prevent external dew, a desiccant plug socket to help maintain a frost-free CMOS chamber, a 128MB frame buffer, a filter wheel port, and 2-stage TE cooling to reduce the sensor temperature to -35C or -40C below ambient along with temperature regulation to maintain a constant temperature set point.Due to the efficient TE cooling, single exposures many minutes in duration are possible, making them ideally suited for deep space imaging of dim objects as well as brighter objects and planets.The Horsehead Nebula image on the reverse side is only 3 x 20 minute single-shot color exposures.

Six of these medium sized COLDMOS cameras use Sony Exmor CMOS sensors, including the two largest with 24 and 36 Megapixels, respectively, in 35mm format sensors.Even these large sensors deliver multiple frames per second at full resolution.These front illuminated sensors also exhibit very high sensitivity.One model in this group (QHY163M/C) uses a Panasonic back-illuminated sensor and one model (QHY183M/C) uses a Sony STARVIS Exmore R back-illuminated sensor.STARVIS is Sony’s designation for sensors capable of recording under starlight.These back-illuminated sensors have even greater sensitivity as well as noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination.They retain the advantages of CMOS image sensors such as low power consumption and high-speed operation while dramatically improving sensitivity.


Model QHY163M (Monochrome) QHY163C(Color)
Sensor 16Mp 4/3-inch CMOS
AR Coating On Sensor No. Clear Glass
Pixel Size 3.8um*3.8um
Effective Pixel Area 4656*3522
Effective Pixels 16 Megapixels
Effective Image Area 17.7mm*13.4mm
Fullwell 18ke- to 20ke-
AD Sample Depth 12bit/10bit (output as 16bit and 8bit)
Sensor Size Typical 4/3inch
Frame Rate 22.5FPS@16mega Full Resolution
30FPS@4K HD Video
Readout Noise 2.4e@low gain 1.0e@high gain
Dark Current TBD
Exposure Time Range 60us-1800sec
Anti-Glow Control Yes
Shutter Type Electric Rolling Shutter
Computer Interface USB3.0
Built-in Image Buffer 128MByte DDR2 memory
Cooling System Dual Stage TEC cooler(about -40C below ambient)
Anti-Dew Heater Yes
Air-proof Chamber Yes, with silica gel tube socket
Telescope Interface M42/0.75
Optic Window Type QHY163M: AR+AR High Quality Multi-Layer Anti-Reflection Coating
QHY163C: IR cut filter
Back Focal Length Different value with different setup. See the camera connection table on bottom of this page
Weight 442g
Other Port 6PIN RJ11 Guide Port, 4PIN QHYCFW Port.
Power Supply Camera Powered by USB. The TEC need 12V DC input.

In the Box

  • USB3.0 cable(1.5m)
  • Self-locking power cable
  • 6pin guide cable
  • Car power adapter
  • Drying tube
  • desiccant
  • M42/2inch adaptor(Maximum diameter: 56mm)
  • Driver download card
  • Inspection report
  • QHY163M camera