I am not new to astro imaging but I am new to Imaging with CMOS. I have been able to get OK calibrating images using nebulosity with bias, dark and flat frames calibrating lights in the "preproc" batch process. I have had weird results with the darks ie., ampglow. I am going to have to start a new calibration method using dark flat frames. I have no experience with them or how to apply them. Is there a good established workflow anyone could share or point me to. Thanks G
