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Ultra low noise color CMOS planetary imaging / guide camera 
STATUS: In stock

The QHY5III224 uses a SONY 1/3inch ultra-low read noise CMOS sensor, the IMX224. This sensor has the highest sensitivity of any sensor in our small sensor cameras.  The reason for such high sensitivity is the low read noise (less than 1 electron at high gain).  The low read noise means it has a strong ability to capture a weak signal without being flooded by background noise.  This feature gives the QHY5III224 a tremendous advantage for planetary imaging.

The QHY224 has a fast USB 3.0 interface.  It produces 150FPS at 1280 x 960 full resolution output. A high frame rate can reduce the effects of atmospheric turbulence.  It includes 8-bit and 12-bit transfer modes.  Exposuren times can be set 20us to 1200sec.  With its high sensitivity, it is not only for planetary imaging and guiding, but can also be used for some basic deep sky imaging.

The QHY5III224 has a compact 1.25-inch diameter body and is CS lens adapter compatible.   It has a solid and reliable built-in 5-pin LEMO guide cable socket.  

This camera is only available in a color verison (QHY5III224C).

Copyright 2002-2015 QHYCCD
QHY5III224 Specification
Sony IMX224 Exmor CMOS sensor (Color)
Imager Size
Typical 1/3inch
Effective Pixels
1280 x 960  2.4 Megapixels
Effective Area
4.8mm x 3.6mm
Pixel Size
3.75um x 3.75um
Readout Type
Progressive Scan
Peak QE
Readout Noise
0.5-0.7e-@middle gain with HGC mode
3e-@lowest gain with LGC mode
Electronic Shutter
Max Frame Rate(8BIT)
150FPS @ 1280x960   300FPS@640x480    557FPS@320x240
ADC Sample Depth
10/12-bit,  Output  8-bit/12-bit 
Exposure Time
7us - 429sec
Pixel Binning
1x1, 2x2
Yes, onchip microlens array
Anti-amplight Control
Yes (Reduces the amp glow significantly)
Guide Port
Yes, 5-pin Lemo aviation socket
Back Focal
Approx. 11mm
Camera Size
1.25-inch Eyepiece Size (D=31.6mm)
Optic Window
AR+IR cut 680nm (Color)
Support Software
Items included in standard package
QHY5III224 camera. Confocal ring. 1.5meter USB3.0 cable. 1.5meter 5pin lemo to RJ11 guide cable. (does not include the 50mm F/1.4 lens)
Reference Price
USD369 (not including tax and shipping)
High Quality 5pin Lemo Guide Socket
IMX224 Exmor CMOS Sensor

QHY5III224 Test Video
QHY5III224 with a 50mm F/1.4 C-mount lens. 33ms per frame. 30FPS.  The M44 can be seen in this video. The online preview is compressed. If you want to download the uncompressed video please select "download" after entering this google disk page. 500MB size.
Windows Driver and Software Download
Camera Driver
Update Check
SharpCap Patch

Ascom guide, Ascom Capture, and Ascom 2st are all packaged into one driver called AScome3InOne, which means after you finished installing this driver, Ascom guide, Ascom Capture, and Ascom 2st would be installed on your computer.
ASCOM Platform
NativeWDM Driver
BroadCast Driver
Mac Driver and Software Download
Linux Driver and Software Download
Driver and Software Cloud Drive Download

Document Download



Relativity QE Curve of the IMX224 sensor