I am trying to stack about 30 dark sky images in DSS, with calibration frames. The subs were 9 seconds and were obtained over about 5 minutes. The sky appears to stack without a problem, but the foreground is blurry. These images were done without tracking. The tripod was stable, no wind, and the tripod was not moved or bumped during imaging. I have stacked sky/foreground subs like this before but I dont know why the foreground is blurry this time. This is a JPG of the TIFF that came out of DSS, no post processing done and a JPG of one of the original RAW subs. Any feedback is appreciated.
Edited by bosastroguy, 26 May 2023 - 04:36 PM.