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My camera doesn have temperature regulation. How can I make sure the dark frames subtract properly?

April 26, 2017camera Dark frames properly regulation subtract sure temperature

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My camera doesn have temperature regulation. How can I make sure the dark frames subtract properly?

1 Answer

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This can be a major problem since the ambient temperature usually drops during the night. As the dark current drops, the calibration frames “over-do it.” The answer is to use the Auto-Optimize feature. It automatically scales the dark frames to minimize the RMS noise in the image.