Teseek QHY294M Pro IMX492 Mono Camera 16Bit Astronomical BSI Cooling Camera 256MB DDR3 Support HGC/LGC Mode Switch

Teseek QHY294M Pro IMX492 Mono Camera 16Bit Astronomical BSI Cooling Camera 256MB DDR3 Support HGC/LGC Mode Switch

Description:
- The 294 Pro has 11.7MP at 4.63um, 14-bits A/D. IMX492 chips have 46.8 million 2.315um pixels, which 2x2 bins on-chip for Sony to create the sensor’s advertised 11.7 million 4.63um pixel array.

- The QHY294 Pro CMOS sensor has a dual gain mode, HGC (high gain) and LGC (Low gain). The QHY294 Pro will switch the two modes automatically when the gain is set to 1600 you will get the benefits of the ultra low read noise (1e- to 1.6e-) of the HGC mode and a full well capacity of about 14.5ke- at the switch point setting.

BSI:
- One benefit of the back-illuminated CMOS structure is improved full well capacity. In a typical front-illuminated sensor, photons from the target entering the photosensitive layer of the sensor must first pass through the metal wiring that is embedded just above the photosensitive layer. The wiring structure reflects some of the photons and reduces the efficiency of the sensor.

- In the back- illuminated sensor the light is allowed to enter the photosensitive surface from the reverse side. In this case the sensor’s embedded wiring structure is below the photosensitive layer. As a result, more incoming photons strike the photosensitive layer and more electrons are generated and captured in the pixel well. This ratio of photon to electron production is called quantum efficiency. The higher the quantum efficiency the more efficient the sensor is at converting photons to electrons and hence the more sensitive the sensor is to capturing an image of something dim.

True RAW Data:
- 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.

Anti-Dew Technology:
- 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.

Cooling:
- In addition to dual stage TE cooling, we implements proprietary technology in hardware to control the dark current noise.

Specification:
- Model: QHY294M Pro
- CMOS sensor: for SONY IMX492
- Mono/Color: mono only
- FSI/BSI: BSI
- Pixel size: 4.63μm x 4.63μm
- Effective pixel area: 4164x2796
- Effective pixels: 11.7 MP; 46.8 MP (Extended Pixel Mode)
- Sensor size: 4/3 inch (19.28mmx12.95mm)
- A/D: 14-bit A/D
- Full well capacity (1x1, 2x2, 3x3): 65ke-
- Frame rates: standard 11.6 mega pixel mode
- Full resolution: 16.5FPS at 14bit
- ROI:
  2160 lines 21FPS
  1080 lines 41FPS
  960 lines 46FPS
  768 lines 56FPS
  480 lines 87FPS
  240 lines 156FPS
  100 lines 290FPS
- Readout noise: 1.6- to 1.2e- (High Gain Mode); 6.9- to 5.2e- (Low Gain Mode)
- Dark current: 0.002e-/pixel/sec at -20℃; 0.005e-/pixel/sec at -10℃
- Exposure time range: 60μs-3600sec
- Recommend gain: 1600 (11MP mode); 2600 (47MP mode)
- Amp Control: Amplifier Glow can be reduced during long exposure
- Shutter type: electronic rolling shutter
- Computer interface: USB3.0
- Built-in image buffer: 256MB DDR3 memory buffer
- Cooling system: dual stage TEC cooler (about -35℃ below ambient, test temperature +20℃)
- Optic window type: AR+AR high quality multi-layer anti-reflection coating
- Telescope interface: M42/0.75
- Back focal length: 17.5mm (±0.3)
- Anti-dew heater: available
- Weight: 650g

Package Included:
- 1 x Camera
- 1 x Locking Power Cable
- 1 x Adapter Kit
- 1 x USB3.0 Cable (2m)
- 1 x 12V Power Adapter
- 1 x 12V Power Cable
- 1 x M42 to 2” Adapter
- 1 x Desiccant Tube
- 1 x Drive Download Instruction