Bias subtracted darks for flat frames.
Hi all,
So I've done flat frames for the first time and I'm just wondering if I should use bias subtracted dark frames (length of the darks is the same as my light frames) or if I should just take dark frames to match the length of my flats. I played around with bias subtracting my darks last night and the results didn't resemble the original dark frames at all. I'm just not sure if that's normal or not.
I used pixinsight to stack the bias frames in image integration and calibrated the darks with the bias using image calibration.
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