CCD and Camera Electronics
G2 series of CCD cameras are manufactured with two kinds of CCD detectors:
●
G2 cameras with Kodak KAF Full Frame (FF) CCD architecture.
Almost all Full Frame CCD detector area is exposed to light. This is
why these detectors provide very high quantum efficiency. FF CCD
detectors, intended for research applications, are not equipped with so-
called Anti Blooming Gate (ABG – a gate, which prohibits blooming
of the charge to neighboring pixels when image is over-exposed) to
ensure linear response to light through the whole dynamic range. FF
CCD detectors used for astrophotography are equipped with ABG to
eliminate disrupting blooming streaks within field of view.
Cameras with Full Frame, non-ABG detectors are suitable for
scientific applications, where linear response is necessary for
photometric applications in astronomy, microscopy etc. High quantum
efficiency could be used also for narrow-band imaging, where
overexposure is a rare exception, and for imaging of small objects
without a bright star in the field of view.
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Illustration 3: “Full Frame” CCD schematic diagram
