Features Specifications Application Download Adapters Manual Back
Model QHY600 PRO (Professional Version, previous name QHY600U3G20)
QHY600 PH (Photographic Version, previous name QHY600U3)
QHY600L (Lite Version)
Image Sensor SONY Full Frame BSI CMOS Sensor IMX455

All Mono version of QHY600PH & QHY600Pro use IMX455 
industry grade sensor (Grade-K).  
All Color version of QHY600 is using the consumer grade sensor (Grade-C)
QHY600L lite version using the Grade-C sensor.
Pixel Size 3.76um x 3.76um
Color / Mono Version Both Available.QHY600C/M-PH and QHY600C/M-Pro
Sensor Surface Glass AR+AR Multi-Coated
Sensor Type
Back-Illuminated (BSI)
Effective Pixels
61.17 Megapixels   
(9576*6388 effective area. 9600*6422 with overscan and optically black area)
Effective Image Area
36mm x 24mm
Full Well Capacity (1x1, 2x2, 3x3)
Standard Mode
>51ke-  / >204ke- / >408ke-
Super Full Well Mode
>80ke-  / >320ke- / >720ke-
16-bit (0-65535 levels) 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 16-bit summed then it is 18-bit.
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 (QHY600Pro only)
  • Full Frame Size: 4.0FPS (16-bit output)
Read Noise 1.0e- to 3.7e-  (Standard Mode)
Dark Current 0.0022e-/p/s @ -20C    0.0046e-/p/s @ -10C
Zero Amplifer Glow Yes
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 a feature of the professional version only and needs the QHYCCD PCIE Graber card.  In the early bird version the hardware is disabled.  It can be enabled in an upgrade to the professional version in the future) 
Hardware Frame Sequence Number Supported

(Pro Version Only)  4PIN, high speed with flexible FPGA conntrol. 
Can be used as trigger in/out, multiple camera sync capture control, high precision GPS time measurement etc.

Built-in Image Buffer DDR3 memory

PH&Pro Ver: 2GBytes(16Gbit)
Lite Ver: 1GBytes(8Gbit)
Cooling System
Dual Stage TEC cooler:
- Long exposures (> 1 second) typically -35C below ambient
- Short exposure (< 1second) high FPS, typically -30C below ambient

-The QHY600 water-cooled customized version has a maximum temperature difference of -45 degrees in continuous mode and single frame mode with an exposure time greater than 1 second.
Anti-Dew Heater
Telescope Interface
Optic Window Type

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

Power 40W/100% 
Back Focal Length
17.5mm (±0.2 
Weight (net)
Pro Version : 965g *
PH Version: 850g*

Lite Version: 790g*
* M54/0.75mm center/tilt adjust adapter not included)
Reference Price
(tax not included)
PH Version: USD4599   

Pro Version: USD8999   
Fiber PCIE grabber card included

Lite Version: USD3980  


QHY600 Short Back Focal Length Version: it is specially designed for DSLR lens users or those who has special requirment of short back focal length. This version has a special front part version which has 7mm B.F.L only. Click the following link or the picture to learn more: 

Back Focal Length 7mm
Weight (net)
Special Short Backfocus Version :870g*
*Not including the M54/0.75mm center/tilt adjust adapter
Reference Price 
TBD according to Requirments

QHY600 Liquid Cooling version: QHYCCD accepts orders for QHY600 customized for water-cooling system. Compared with air cooling, water cooling has some important advantages. This version requires reservation, please contact QHYCCD before the order. Click the following link or the picture to learn more: 

Cooling System Liquid Cooling
Long exposures (> 1 second) typically -45C below ambient
Reference Price 
TBD according to Requirments


QHY600 Curves

Multiple Readout Modes is a new function for newer QHY Cameras.  Different readout modes have different driver timing, etc., and result in different performance.  Each readout mode has its advantage and disadvantages.  The QHY600 currently has three readout modes.  In the future QHYCCD may add more modes. These readout modes are currently supported in the QHY ASCOM Camera Driver, SharpCAP software and the N.I.N.A software. You can find the readout list box in the software.

QHY600 Performance Curves in 
Readout Mode #0 (Photographic Mode). In this mode there is a drop in the noise between Gain 25 and Gain 26.  We recommend setting the Gain to 26 to begin.  At this setting the full well is 27ke- and readout noise is 2.7e-.  For every long exposures you can lower the gain from this point to increase the full well capacity.  
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 uses LGC and Gain55-100 uses HGC.

QHY600 Performance Curves in Readout Mode #2 (Super Fullwell Mode).  

Now QHY600 adds #3 mode Extend Fullwell 2CMSIT (yellow curve). The advantage of this mode is that it has the same full well value and system gain as the #2 mode Extend Fullwell, but the read noise is reduced by about 1.3 times
This function needs to be used with 2020.6.26 or newer SDK. If your software cannot display this mode, please download the QHYAllInOne installation package to update the SDK in the software.

The curve shows absolute QE

​QHY600 Linearity Test
We did a test for the QHY600 under the ultra high fullwell mode. The results is quite good to show a good linearity response range up to 73ke-. The results can be found here:

QHY600 linear test results show good linearity up to 73000e-.  This is in readout modes # 0 and # 2. Gain = 0. In the linear fit graph we deleted the data above 73000e- and got R ^ 2 = 0.9998.\
At very short exposure times below 20ms the value is quite small and may be flicker induced by the tablet.
QHY600 Linearity Test



​QHY600 Size




QHY600 Short Back Focal Length Version

QHY600L (Lite Version)
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