The QHY410C camera from QHYCCD is a back-illuminated (BSI) CMOS full-frame color camera.
The 24.6 MP Sony IMX410 CMOS sensor has a pixel size of 5.94um. The IMX410 is essentially a back-illuminated version of the sensor used in the QHY128C camera. The color camera comes with a full well of 120ke- and is best suited for telescopes that have a long focal length. The full-frame camera comes with 512kbytes of non-volatile built-in memory.
The Sony IMX410 sensor, when at full read mode, can provide 24 MP stills at 15fps for full-resolution, 8-bit images. O it can do 7.5fps at full-resolution and 16-bit images. The sensor comes with a high dynamic range and a 3.75e- read noise when at the lowest gain. When at the highest gain, the camera’s read noise is 1.1e-.
This QHY410C camera comes with a true and completely RAW image output, ensuring that it does not reduce noise or remove hot pixels. The image is made up of the original signal, maintaining the flexibility for astronomical image processing programs.
The QHY410C has a two-stage thermoelectric cooling system. The thermal noise control works to reduce the CMOS sensor noise without effecting the quality of the raw image.
The QHY410C camera features full anti-dew technology for both the CCD sensor cover glass and the sensor chamber optical window. The QHY has included an electric heating board made for the chamber window to prevent dew formation. The sensor is kept dry using a silicone gel tube socket design to control humidity in the sensor chamber.
Despite the length of the exposure, this QHY color camera has a zero amplifier glow.
The QHY410C has an AR+AR coated optical window to avoid halos around bright stars. This gives full access to the red wavelength of H-alpha and SII. For RGB color balance, a separate removable 2-inch UV/IR filter is placed in a custom filter holder in front of the camera. This is done without passing the near IR wavelengths above 700nm.
Each camera is calibrated at the factory with a high-precision axis measurement device. Orthogonal placement of the sensor is guaranteed to be flat to the image plane to better than +/-20 microns across the sensor from edge to edge, so there is no need to adjust for camera tilt absent mechanical errors elsewhere in the image train.
– CMOS Sensor: SONY IMX410 COLOR CMOS
– AR Coating On Sensor: Yes
– Pixel Size: 5.94um x 5.94um
– Effective Pixel Area: 6072*4044
– Effective Total Pixels: 24.6 Megapixels
– Full Well: 120ke-
– AD Sample Depth: 14-bit (output as 16-bit and 8-bit)
– Exposure Time Range: 100us – 3600sec
– Typical Sensor Size: Full Frame Size
– Readout Noise: 3.75e-@Low gain, 1.1e-@High gain
– Dynamic Range: >17000:1 (More than 14 STOPS)
– Shutter Type: Electric Rolling Shutter
– Cooled System: Dual Stage TEC cooling (about -35C below ambient)
– Telescope Interface: M54/0.75 Female Thread on the fast installer/center adjust ring
– Optic Window Type: AR+AR
– Built-in Anti-Dew Heater: Yes
– Power Consumption: ~ 30 Watts @ 100% TEC. 13 Watts @ 50%TEC
– Weight: 785g (1.6711 lb.)
List price for the QHY410C-PH photographic version is $3695. You can learn more about the QHY410C and other QHY cameras here.
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