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QHY5-III 290 Colour CMOS USB3.0 Planetary and Guide Camera

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0.60 kg
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including VAT 20.00 % ( £53.67 )



The QHY5-III 290C colour camera uses a SONY STARVIS Exmor R back illuminated CMOS sensor. The Starvis sensor means you can see very dim stars in real time video. QHY5-III 290 C can capture mag 9 stars when used with a 50mmF1.4 C-mount lens. To compare with the IMX236 sensor , it has twice the sensitivity for visible light and three or more times in near infrared wavelengths.

The QHY5-III 290C has ultra low readout noise also. The back llumination and low readout noise make this camera an ideal video astronomy camera. The 2.9um small pixel size is also idea for planetary imaging.

The QHY5-III 290C has USB3.0 high speed interface and can output 180FPS at full HD output . The camera has a 10/12bit ADC and outputs an 8 or 12 bit image.


QHY5-III 290 Speciafications
CMOS Sensor Sony IMX290 Exmor R back illuminated CMOS sensor
(Mono / Color)
Sensor size Typical 1/2.8inch
Effective pixels 1920 x 1080 (2 Mega pixels, full HD)
Effective area 5.60mm x 3.10mm
Pixel size 2.9 x 2.9 micrometer
Readout type Progressive scan
Full Well capacity TBD
Anti-ampglow Control Yes (Reduces the ampglow significantly)
Shutter Rolling Electronic Shutter
Max frame rate

120fps @ 1920*1080, 220fps @ 960*540,
400fps @ 480*270

ADC Sample depth 10/12bit, output 8bit/12bit
Exposure time 5 milliseconds - 600 seconds
Pixel binning 1x1, 2x2
MicroLens Yes, onchip micro lens array
Guide Port Yes, 5 pin Lemo aviation socket
Back focal distance appr. 11mm
Camera size 1.25" eyepiece size (D=31.6mm)
Optical Window AR+AR clear glass (mono camera),
AR+IR-cut 680nm (Colour camera)
Support software ASCOM, SharpCap

Items included in standard package

  • QHY5-III 290 camera
  • Confocal ring (parfocalising ring)
  • 1.5m USB3.0 cable
  • 1.5m 5 pin lemo to RJ11 guide cable
  • (may not include the 50mm/F1.4 lens)

Comparison of The QHY5-III Series

QHY5-III Series Family
CMOS sensor IMX174 IMX178 (BSI) IMX224 IMX290 (BSI)
Full resolution 1920*1200 3072*2048 1280*960 1920*1080
Sensor size 1/1.2inch 1/1.8inch 1/3inch 1/2.8inch
Max FPS at full resolution 138fps 50fps 150fps 120fps
Max FPS with ROI
(region of interest)
220fps@960*540, 660fps@480*270
Colour version QHY5III174C QHY5III178C QHY5III224C QHY5III290C
Mono version QHY5III174M QHY5III178M N/A N/A currently
Pixel Size (um) 5.86 2.40 3.75 2.90
Peak QE 78%@Mono TBD TBD TBD






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