G4-9000 CCD camera monochrome with KAF-09000 CCD 3056 x 3056 pixels, pixel size 12 x 12 um [MVI-G4-9000]

Moravian Instruments: G4 cameras are capable to use large CCD detectors with 36 × 36 mm area, which is 50% more than the area of classical film frame. Precisely regulated cooling keeps the CCD on constant temperature, which allows quality image calibration. Cameras can be equipped also with liquid-coolant heat exchanger to cool down the hot side of Peltier TEC modules, beside the two magnetic levitating fans used in air cooled cameras.
There is a mechanical shutter inside the camera head, filter wheel for 50 × 50 mm square filters (round filters of 50 mm diameter cause vignetting on such large CCD chips) cannot be placed inside the camera head due to limited space. But it is possible to connect external filter wheel for 5 large filters to the G4 camera, the camera head already contains connector for external filter wheel control.
Used CCD detectors are equipped with so-called “anti-blooming gate” (ABG), which drains the over-abundant charge from saturated pixels. ABG ensures the round images of bright stars, without disruptive blooming spikes. On the other side, compromising of the CCD linearity by ABG is only negligible. G4 cameras can be used for astrometric and photometric applications as well as for astrophotography.