Why We Calibrate Flat Frames for Astrophotography

Описание к видео Why We Calibrate Flat Frames for Astrophotography

We review a simplified procedure for calibrating raw light frames with a master flat frame. We see that when we don't eliminate all of the non-flat-related noise from the master flat frame, we end up under-correcting the light frame. Conversely, if we remove more than the non-flat-related noise form our master flat frame, we over-correct our raw light frames for the flat defects.

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