Astro 60D – Dark Frame Comparison

/in /by

▣ ASA1600, 450sec Exposure, Ambient air temperature 22℃

 A. Original images (Center 1:1 crop)

B. Level emphasized in Photoshop :255 → 100 (Center 1:1 crop)

C. Level emphasized in Photoshop :255 → 30 (Center 1:1 crop)