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QHYCCD Re-defines the Astronomical Video Camera

STATUS: Released

The QHY5III174 is the first in the new QHY5III series CMOS USB 3.0 cameras. The camera is designed to be an excellent planetary, lunar, solar and meteor capture video camera. With a 50mm, F/1.4 C-mount lens it will record 8th to 9th magnitude stars at 30 frames per second (33 ms exposure).  This high sensitivity with HD resolution will push video astronomy to new heights.  
Sony introduced a new global shutter (GS) CMOS imaging technology called PregiusTM that redefines the global shutter imaging category and provides the best of both worlds:  fast frame rates and CCD-like imaging performance.  The technology also offers reduced dark noise, which enables higher gains without compromising image quality, as well as higher quantum efficiency. 
The global shutter eliminates pixelization when imaging the moon and planets and moon caused by atmospheric agitation and high frame rates. 

The unique QHYCCD design retains the 1.25-inch eyepiece design of the QHY5-II series but adds features for better cooling.  This design is more efficient in transfer of heat to the outer case enabling lower noise especially in high ambient temperatures.  The 1.25 inch design also offers the shortest possible backfocus, making the camera ideal for off-axis guiding.  In addition, the QHY5III174 uses a more robust LEMO style connector for the guide port.  These connectors are known for being both rugged and reliable.
The QHY5III174 is available in both mono and color versions. The camera is well suited for solar imaging using short focal length telescopes that will capture a full solar disk within the FOV. 

First evaluation of QHY5III174 monochrome (uncooled) by Alberic Debonnevie

Copyright 2002-2015 QHYCCD
QHY5III174 Specification
Sony IMX174 Exmor CMOS sensor (Mono/Color)
Imager Size
Typical 1/1.2-inch
Effective Pixels
1936 x 1216      2.4 Megapixels
Effective Area
11.34mm x 7.13mm
Pixel Size
5.86um x 5.86um
Readout Type
Progressive Scan
>32 Ke-
Peak QE
78% (Monochrome)
Readout Noise
5.3e-@Gain0   2.8e-@Gain60     1.6e-@Gain100
System Gain
Anti-amplight Control
Yes (Reduces amp glow significantly)
Global Shutter
Max Frame Rate (8BIT)
138FPS @ 1936x1216    260FPS@960x600    490FPS@480x300
ADC Sample Depth
10/12-bit,  Output  8-bit/12-bit 
Exposure Time
5us - 900sec
Pixel Binning
1x1, 2x2
Yes,on-chip microlens array
89g (Mono) / 85g (Color)
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+AR (Mono camera)
AR+IR cut 680nm (Color camera)
Support Software
Items included in standard package
QHY5III174 camera. Confocal ring. 1.5meter USB3.0 cable. 1.5meter 5-pin lemo to RJ11 guide cable. (does not include the 50mm F/1.4 lens)
Reference Price
USD549 (not including tax and shipping)
High Quality 5pin Lemo Guide Socket
IMX174 Exmor CMOS Sensor

M100 by Alberic Debonnevie, taken with QHY5III174: 3350 x 3 sec exposures + darks.16" F/D 4.5 Newtonian .Click image to see larger size.

M51  by Alberic Debonnevie, taken with QHY5III174M: 5005 x 2 sec + 2915 x 2.5 sec with 400mm Newton .Click image to see larger 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 Color IMX174 sensor