I need some help with my darks. I've searched the forums but I can seem to find anyone with a similar problem. When I stack dark frames with my lights using DSS, I lose almost all data from my lights. I still have stars on a dark background, but all nebulosity is gone. The histogram is just a thin line on the left side. The blacks are totally clipped.
I'm attaching two Ha images. The first is a stretched stacked image of the Sadr region with no darks. The second is a stretched stacked image with lights and darks.
I'm also attaching the master dark.
I'm hoping somebody has run across this before and it's a simple fix. As you can see, I desperately need those darks to help get rid of that wicked amp glow :-)
In case it helps, I'm using a ZWO 183 MM Pro. 32 X 300 seconds subs and 20 Darks.
Thanks for the help.
Edited by ftur62, 19 May 2019 - 11:08 PM.