Astronomy Specialist



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The QHY 533C is a brand new cooled colour deep sky camera with zero amp glow and low noise. It contains the Sony IMX533 back-illuminated sensor with exceptional low light capabilities. The pixels measure 3.76µm, making this camera ideal for short-medium focal length telescopes.



This camera has a two-stage TEC cooling system that brings the temperature of the sensor around -35C° below ambient for low noise imaging, even in warm climates. The dark current at -20°C is only 0.0005 electrons/pixel. In addition, QHY employs a unique thermal noise control technology to reduce CMOS sensor noise to a very low value without affecting the integrity of the raw image.

The QHY 533C employs a full anti-dew technology for both CCD sensor cover glass and the sensor chamber optical window.

The 1GB DDR3 memory buffer facilitates the download of images to the computer, especially when USB traffic is high, the writing speed of your computer is slow or occupied in other processes.

In order to avoid halos around bright stars, the QHY 533C has an AR coated optical window on both sides rather than the common IR/UV cut window. Also, the protection glass of the sensor is AR coated to maximize light transmission and minimize internal reflections. It is recommended to use a UV/IR cut filter.

Note: This camera may not be supported by The Sky X. We suggest you use alternative software for image capture.


QHY has designed a number of adapter/spacer kits for the 533C for different setups:

Connection to coma corrector requiring 55mm backfocus and M48 interface (included with camera)


Connection to Canon EF lens

Connection to Nikon F lens

Sensor Sony IMX533 CMOS - COLOUR
Resolution 9 Megapixels 3080 x 3280 (including optic black and overscan areas)
Pixel size 3.76 µm
Sensor size 1" (11.31mm x 11.31mm, 16mm diagonal)
Quantum efficiency 80% (monochrome sensor)
Exposure range 30µs-3600s
Read noise 1.3e- to 3.4e-
Dark current 0.0005e-/pixel/sec @ -20C
Full well capacity 58,000 e-
Bit rate 14 bit ADC
Frame rate 18 fps at full resolution (16 bits)
Unity gain
Cooling ΔT of -30 to 35°C Dual Stage TEC cooler
Memory buffer 1 GByte DDR3
ROI Supported
Compatibility Mac, Windows, Linux
Optical window AR coated (both sides)
Shutter type Electronic shutter
Computer interface
USB 3.0
Back focus 17.5mm ±0.5mm
Connections M42 x 0.75 female thread, C-mount
Weight 845 gr
Power supply 12V 3A (2.1×5.5 mm connector)


  • QHY 533C
  • USB 3.0 cable (1.5m)
  • Screw jack power cable (5.5-2.1mm male jack with locking nut to 5.5-2.1mm female jack)
  • Lighter plug adapter to 5.5-2.1mm power jack
  • Desiccant Drying Tube (desiccant not included)
  • Adapter for connection to photographic tripod

Includes Combo E kit:


  • 1 x 4 mm M42 male thread to M54 spacer (without thread) with slot for 2" filter
    1 x 10 mm M54 spacer
    1 x 21 mm M54 to M48 female thread
    1 x 0.5 mm M42 spacer


      Guide to installing QHY and ASCOM drivers for QHYCCD cameras.


      ZWO camera software QHY camera drivers

      ZWO camera software QHY 533 manual

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