QHY QHY533-M Cooled Monochrome Back-Illuminated 9MP CMOS Camera

QHY533M Cooled Monochrome
CMOS Camera

This new generation cooled, monochrome camera from QHYCCD is full of great features, allowing for superb astrophotography. The monochrome model of the 533 uses a threaded interface to connect to the QHY small filter wheel, and also supports Nikon and Canon lens adapters to achieve infinity focus.

Sony IMX355M Sensor
The QHY533M is a back-illuminated CMOS camera, sporting the Sony IMX533M sensor. This allows for zero amplifier glow with low noise and high sensitivity. At 9 megapixels, the 11.29 mm square sensor provides 3003 x 3003 pixels at 3.76um.

Back-Illuminated CMOS
Illuminating camera sensors from the front can reduce efficiency, as the illumination structure can inadvertently deflect photons. Illuminating the sensor from the rear allows for the photosensitive surface to absorb the maximum possible photons. This increases the performance and efficiency (QE) of the camera, as well as increases its full well capacity.

Other Features
The QHY 533 monochrome features zero amplifier glow, regardless of exposure length. The image buffer is large and fast, with 1 gigabyte of DDR3 memory. This produces 27 frames per second in 8-bit mode and 18 frames in 16-bit mode. In addition, this camera can output in true RAW mode from the original signal only, without any noise reduction or hot pixel removal. This provides the highest quality image for post-production in image processing software.

Environmental features of this camera include dual-stage TE cooling and a proprietary QHY technology allowing for the lowest possible dark current (less than 1/1000th of an electron at -20C). Anti-dew and anti-frost protection has been integrated into the camera body, with built-in dew heaters at the optical window, a humidity- and condensation-protected chamber, and an electric heating board for the chamber window.

Adjust Orientation and Attach Filter Sliders
While the sensor is square, if orientation is of concern for the user the QHY533M has an adjustable front plate. Simply adjust the front plate to rotate the camera orientation to liking (for instance, to align with the telescope's RA and Dec).

In addition, the threaded interface of the 533M allows for direct attachment of a QHY small filter wheel, Nikon or Canon lens adapters, or other accessories.