QHY Camera 294M Pro Mono (85058)

The QHY Camera 294M Pro Mono is a cooled monochrome astrophotography camera designed for high sensitivity and versatility in capturing detailed images of the Moon, planets, nebulae, and galaxies. It features a back-illuminated CMOS sensor, which allows more photons to reach the photosensitive layer by placing the wiring beneath it. This design increases quantum efficiency, making the camera especially effective for imaging faint astronomical objects. Advanced cooling and anti-dew technology, along with robust sealing, ensure reliable performance even during long exposures and in varying environmental conditions.

Back-Illuminated CMOS Sensor
The back-illuminated sensor design significantly increases sensitivity by allowing more light to be converted into electrons, enhancing performance in low-light conditions and improving the camera’s ability to capture dim targets.

Cooling and Anti-Dew Control
Dual-stage TE cooling, a built-in dew heater, and a sealed chamber with a silicon gel tube keep the sensor dry and free from condensation. This ensures low noise and consistent operation during long imaging sessions.

Mono Camera Advantages
Monochrome cameras are ideal for advanced imaging techniques such as LRGB and narrowband, as well as scientific applications like spectrometry and photometry.

Specifications

Sensor type: CMOS (Sony IMX492)
Sensor size: 19.28 x 12.95 mm
Sensor diagonal: 33.9 mm
Megapixels: 11.7
Pixel size: 4.63 µm
Photo resolution: 4164 x 2796 pixels
Bit depth: 14 bits
Active cooling: Yes (up to 35°C below ambient)
Interface: USB 3.0
Telescope connection: T2 thread
Color camera: No (monochrome)
Maximum exposure time: 60 minutes
Minimum exposure time: 60 microseconds
Frame rate (full resolution): 16.5 FPS
Read noise: 1.2 – 6.9 e-
Full well capacity: 65,000 e-
Flange focal distance: 17 mm
Power supply: 12V (not included)
Shutter type: Rolling shutter
Antiblooming: Yes
Quantum efficiency: 87%
Internal memory: 256 MB DDR3
Dark current: 0.002 e-/pixel/sec
Filter wheel: Not included
Weight: 650 grams
Diameter: 90 mm
Length: 141 mm

Recommended uses: All-sky imaging, meteor detection, lunar and planetary imaging, deep-sky objects such as nebulae and galaxies
Not suitable for: Use as an autoguider