Hello! I’ve read that the best way to calibrate frames to be stacked is to create a unique dark for each frame. That is, shoot a number of darks for each science frame, apply that master dark to the individual science frame and then stack the calibrated frames.
That seems unwieldy.
It seems more common to create a single master dark and apply that to each individual science frame, or to apply it to the stacked science image.
I'm curious - how would the error range compare with each technique?
Best regards.
Mike