In the DSLR implementation there is a RAW image output, but typically it is not completely RAW. Some evidence of noise reduction and hot pixel removal is still visible on close inspection. This can have a negative effect on the image for astronomy such as the “star eater” effect. However, QHY Cameras offer TRUE RAW IMAGE OUTPUT and produces an image comprised of the original signal only, thereby maintaining the maximum flexibility for post-acquisition astronomical image processing programs and other scientific imaging applications.
Based on almost 20-year cooled camera design experience, The QHY cooled camera has implemented the fully dew control solutions. The optic window has built-in dew heater and the chamber is protected from internal humidity condensation. An electric heating board for the chamber window can prevent the formation of dew and the sensor itself is kept dry with our silicon gel tube socket design for control of humidity within the sensor chamber.
In addition to dual stage TE cooling, QHYCCD implements proprietary technology in hardware to control the dark current noise.
As a result the dark current of the camera is:
QHY367C Pro: 0.0015e-/p/s at -15C
Effective Pixel Area
6036 * 4028
AD Sample Depth
Full Frame Rate
1.8e- to 4e-
2.4e- to 3.2e-
0.0006e/pixel/sec @ -15C
Exposure Time Range
Electric Rolling Shutter
Built-in Image Buffer
128MB DDR2 Memory
Dual Stage TEC cooler(about -35C below ambient)
(Test temperature +20°)
Dual Stage TEC cooler(about -45C below ambient)
Optic Window Type
AR+AR High Quality Multi-Layer Anti-Reflection Coating (For color camera user need to add a UV/IR filter in the light path)
Back Focal Length