QHY 600

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  • QHY600
  • QHY600 Dark
Frequently bought together:





Model QHY600 PRO  (Professional Version, previous name QHY600U3G20)
QHY600 PH     (Photographic Version,previous name QHY600U3)
Image Sensor SONY Full Frame BSI CMOS Sensor IMX455ALK-K (Industry Grade)
This sensor is available in both -C (
consumer grade) and -K (industry grade).  General speaking the -K version has longer lifetime than the -C version.  Currently ,both the monochrome QHY600 Photographic version and monochrome QHY600 Professional version use the -K version of the sensor.
Pixel Size 3.76um x 3.76um
Color / Mono Version Both Available.QHY600U3G20M and QHY600U3G20C
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-
Extend 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 (QHY600U3G20 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

(Professional 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 1GBytes(8Gbit)/ 2GBytes(16Gbit)DDR3 memory
Non-volatile memory / On camera storage Build-in total 64MByte Flash Memory. 10MBytes user-accessible space for stellar ROI frames for analysis of exoplanet investigation, occultations, atmospheric seeing measurement, focus, optical analysis, etc.  Supports 100*100 image x 500 frames, 50*50 image x 4000 frames, 25*25 image x16000 frames, 10*10 image x 250000 frames 
Cooling System
Dual Stage TEC cooler:
- Long exposures (> 1 second) typically -35C below ambient
- Short exposure (< 1second) high FPS, typically -30C below ambient

QHY600 Water Cooling Version  - Long exposures (> 1 second) typically -45C below ambient
Water Cooling Version QHYCCD can offer this version. Contact QHYCCD or Dealer before order this version
QHY600 Water Cooling Version  - Long exposures (> 1 second) typically -45C 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
17.5mm (±0.2)  
(A special short backfocus front piece is available as an option. It provides is about 7mm B.F.L. Contact QHYCCD if you need this version)
Weight (net)
Scientific Professional Version : 965g *
Amateur Photographic Version: 850g*

Special Short Backfocus Version :870g*
*Not including the M54/0.75mm center/tilt adjust ring)



























































Frequently Asked Question

1. Does QHY600 support hardware binning?
The CMOS sensor itself has some binning function but it should not be the hardware binning (FD binning). And also the binning in the sensor is based on the location of the bayer color . it means it will binning with the same position of the same color.And for monochrom QHY600 sensor, it is still use such a position to do binning. So we think it is not a good solution for the monochrom binning. 
And since the very low readout noise of the QHY600, so the digital binning may bring more advantage. First , it can increase the fullwell.  Binning at 2*2 will gives four times of the fullwell. Second, it will increase the AD sample depth. Binning at 2*2 will give 18bit data range.  For readout noise, the N*N digital binning will cause the readout noise become  SQR(N*N)= N times. For example, if the readout noise is 1.9e at 1*1 binning. The 2*2 digital binning readout noise will become  1.9*SQR(2*2)=3.8e. 
2. What's the absolutely QE of QHY600?
SONY does not release the official absolutely QE curve of the sensor. There is only a relativity QE graph. (Can be found on QHY600 specification page). But we did a some experiment of testing the absolutely QE of QHY600 by comparing with a known QE sensor. . The article can be found at https://www.qhyccd.com/index.php?m=content&c=index&a=show&catid=23&id=261 The current test results shows a very high QE, it  looks too high. We will find more sensor to do this work again.
3. How to set the gain, offset and readmode at the first using
For first using, we recommand this value:   readout mode = #0   gain=26   offset=10.  Here is an article for gain/offset setting at https://www.qhyccd.com/index.php?m=content&c=index&a=show&catid=23&id=22
4. Meet "Out of Memory" 
Please make sure the QHYCCD SDK had been update to the last version.   2019.10.8 (V6.0.3) or later. The previous two version has a memory leak bug and it will cause more memory lost .  And if it is still out of memory, it maybe the memory not enough in 32bit memory space. Since the 61mega pixels, the QHY600 require big memory. The SDK will use about more than twice of the size of the image data (in mono version it is 120MB per frame. so SDK need about 300MB, for color version it is 360MB per frame , so the SDK need about 800MB) And the image acquire software need one or more . For x86 system ,  the totally memory space is 4GB, many other X86 software will take this space so it maybe not enough memory there. We recommend to use the x64 software, like the X64 SharpCAP,  X64 N.I.N.A software. If you are using the X86 software. it is best to close other software to reduce the 4GB space usage 



SNR G206.9+2.3 in Monoceros

By Toshiya Arai with QHY600,  Imaging telescope or lens:Takahashi Epsilon 130D  Link: https://www.astrobin.com/rgn03r/B/?nc=use

The Orion's belt
By Toshiya Arai with QHY600,Takahashi Epsilon 130D,Link: https://www.astrobin.com/64aa4c/?nc=user














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