Features Specifications Application Download Back
Model QHY600U3G20  (Professional Version)
QHY600U3       (Photographic Version)
Image Sensor SONY Full Frame BSI CMOS Sensor IMX455
Pixel Size 3.76um x 3.76um
Color / Mono Version Both Available.QHY600U3G20M and QHY600U3G20C
Sensor Surface Glass AR+AR Multi-Coating Glass
Sensor Type
Back-Illuminated (BSI)
Effective Pixels
61.17 Megapixels   
(9576*6388 effective area. 9600*6422 with overscan and optic black area)
Effective Image Area
36mm x 24mm
Full Well Capacity (1x1, 2x2, 3x3)
>51ke-  / >204ke- / >408ke-
16-bit (0-65535 greyscale) at 1X1 binning
18-bit at 2X2, 19-bit at 3X3, 20-bit at 4X4 software binning

*QHY600 uses the software digital binning for 2*2binning. With digital sum, 2*2binning will be four 16bit summed then it is 18bit.
Sensor Size
Full Frame Format
Frame Rate
USB3.0 Port Image Transfer Speed
  • Full Frame Size: 4.0FPS (8-bit output)
  • Full Frame Size: 2.5FPS (16-bit output)
  • 7.2FPS at 9600x3194, 22.5FPS at 9600x1080, 28FPS at 9600x768, 47FPS at 9600x480, 160FPS at 9600x100,

Fiber Port Image Transfer Speed (QHY600U3G20 only)
  • Full Frame Size: 4.0FPS (16-bit output)
Read Noise 1.0e- to 3.7e-
Dark Current 0.0032e/p/s @ -20C    0.0056e/p/s @ -10C
Exposure Time Range 40us - 3600sec
Firmware/FPGA remote Upgrade  Supported. Via Camera USB Port
Shutter Type Electric Rolling Shutter
Computer Interface USB3.0 / 2*10 Gigabit Fiber Port
(2*10Gigabit Fiber Port is professional version only) 
Built-in Image Buffer 1GB(8Gbit)/ 2GB(16Gbit)DDR3 memory
Cooling System
Dual Stage TEC cooler
In long exposure (above 1sec)       Typical -35C max delta below ambient
In short exposure (less than 1sec) Typical -30C max delta below ambient
Anti-Dew Heater
Telescope Interface
Optic Window Type

AR+AR High Quality Multi-Layer Anti-Reflection Coating

Power 40W/100% 
Back Focal Length
Weight (net)
915g (not include the M54/0.75mm center/tilt adjust ring)
Reference Price (TAX not included)
Early Brid Price:          USD5000 *
Professional Version:  TBD
Photographic Version: TBD


                                  *  The Early Bird price is USD5000 for Monochrome version.  The QHY600 Early Bird Price is effective from Aug,20, 2019 and will end in approximately about 2-3 months
                                      when the Photographic model is released, or when the Early Bird inventory is exhausted, whichever occurs first..  The early bird includes a special offer for an 10% discount for ordering QHYCFW3XL/QHYCFW3L filter wheel together.

Readout Mode is a new function for new QHY Cameras. Different Readout Mode have different driver timing etc and causes the different performance results. Each readout mode has its advantage and disadvantages. QHY600 currently has three readout modes. And in future QHYCCD may add more modes. The Readout mode currently supported by QHY ASCOM Camera Driver and SharpCAP software. You can find the list box in the software.

QHY600 Performance Curves in Readout Mode #0 (Photographic Mode).  In this mode . Between Gain25 and Gain26, There is a readout noise drop position. We recommand to use the Gain26 for beginning. In Gain=26, the fullwell is 27ke and readout noise is 2.7e. For every long exposure. You can use lower gain to get better fullwell. 

QHY600 Performance Curves in Readout Mode #1 (High Gain Mode).  Please note there is a HGC/LGC switch point at gain55 to gain56. Gain0-55 is using LGC and Gain55-100 is using HGC.


QHY600 Performance Curves in Readout Mode #2 (Ultra High Full Well Mode).  

The QHY600 QE is not the absolutely QE. It is the uniformed relativity QE . 

The Mechanical Size and Back focal Length (in optic) of  QHY600  Early Bird Price Version and Professional Version 

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503, Block A, Singularity Center, Shahe Town, Changping District,       ​Beijing ,China ,102206



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