GEOPTIK FLAT FIELD GENERATOR Size:X LARGE 308 5 GSO parabolic primary mirror

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GEOPTIK FLAT FIELD GENERATOR Size:X LARGE 308 5 GSO parabolic primary mirrorIn order to get professional images, you need to calibrate your raw images with a flat frame. In fact, your photographic system will produce an uneven response caused by: Sensor inhomogeneous response (pixels that are more or less sensitive to light) Optical vignetting (image is darker away from the centre) Dust on the sensor window (seen as 'donut' shaped spots on the image) Internal reflections To generate a flat frame, you need a homogeneous

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