QHY5-III Series - USB3.0
Compact, Super-Speed, High Sensitivity, Planetary/Guiding Cameras

The QHY5-III series cameras are USB3.0 super-speed cameras and guiders.  They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece. All QHY5-III series cameras come in a very small but powerful package!

The QHY5-III series employs an advanced thermal design. The heat generated by the CMOS sensor is transferred externally to the telescope's eyepiece tube. Additional heat is transferred to a heat sink on the location ring and cooled by outside air.

Software support includes: EZPlanetary, SharpCAP, FireCapture, Native WDM, BroadCast WDM and ASCOM.

The QHY5-III camera family includes the QHY5III174, QHY5III224, QHY5III178, QHY5III290 and more to come.  Full production release was January, 2016.


Multiple Models with Sony Sensors
Including Sony Exmor and Exmor R Backside Illuminated (BSI) Sensors

QHY5III174 uses the 2.3 Megapixel IMX174, 1/1.2-inch Exmor sensor with global shutter. Available in both monochrome and color.  The large sensor size is a great choice for solar imaging, and the large pixel size and high QE (78%) makes it excellent for deep-sky imaging as well.

QHY5III178 uses the new 6.0 Megapixel IMX178 STARVIS Exmor R back-illuminated CMOS sensor. Available in both color and monochrome. With its small 2.4um pixels and 1/1.8-inch sensor size, the monochrome QHY5III178M is a superb guiding camera due to its advantages in resolution and wide FOV, plus its extraordinary sensitivity due to the STARVIS Exmore sensor.  (Starvis is Sony's designation for sensors that can record dim stars in real time video).

QHY5III224 uses the IMX224 sensor (available in color only). With its extremely-low readout noise of less than one electron, the IMX224 sensor achieved the top score in the new SNR1 index proposed by Sony for picture quality at low illumination. It is one of your best choices for color planetary imaging.

QHY5III290  uses the IMX290 STARVIS Exmor R back-illuminated CMOS sensor. Available in both color and monochrome versions. Extremely low read noise. 1920x1080 full-HD resolution. 1/2.8-inch sensor size. This might be the highest-sensitivity sensor from Sony with such a small pixel size. The QHY5III290M can be regarded as the next generation in monochrome planetary cameras after the QHYCCD QHY5L-II-M.

LEMO Guide Port
Solid and stable connection

The QHY5-III uses a 5-pin LEMO-style Guide Port connector. The camera comes with a 5-pin-LEMO-to-RJ11 guide cable. Although a LEMO-style connector is more expensive, it assures a solid connection between the camera and other devices.

Copyright 2002-2015 QHYCCD
QHY5-III Series Family

CMOS Sensor
IMX174
IMX178(BSI)
IMX224
IMX290(BSI)
Full Resolution
1920*1200
3072*2048
1280*960
1920*1080
Imager size
1/1.2inch
1/1.8inch
1/3inch
1/2.8inch
Max FPS on full resolution
138FPS
50FPS
150FPS
135FPS
Max FPS at ROI
262FPS@ 960*600
490FPS@ 480*300
100FPS@
1528*1024
190FPS@
764*512
300FPS@
640*480
557FPS@
320*240
220FPS@
960*540     460FPS@
480*270
Color Version
QHY5III174C
QHY5III178C
QHY5III224C
QHY5III290C
Mono Version
QHY5III174M
QHY5III178M
N.A
QHY5III290M
Pixel Size(um)
5.86
2.4
3.75
2.9
Peak QE
78%@Mono
TBD
TBD
TBD
Readout Noise
2.8e - 5.3e
0.9e - 2.4e
0.55e - 3.0e
0.75e - 3.2e
FullWell
32ke-
15ke-
19ke-
15ke-
Weight
85g(Color)
89g(Mono)
87g(Color)
86g(Mono)
86g

86g(Color)
87g(Mono)
Reference Price
USD599(Color)
USD639(Mono)
USD399(Color)
USD469(Mono)
USD369
USD399(Color)
USD429(Mono)

EN    |   中文
All the QHY5III Camera has perfect low readout noise perfomance and the capablity to capture almost single photon. QHY5III290,QHY5III224 and QHY5III178 readout noise is less than one electron. This is the readout noise test results of QHY5III290 at HGC mode.