[Startrek (Martin)]

Originally Posted by Retrograde

Hi Martin,

When I first tried flats with the 2600mc (with dark-flats) I found my flats were badly over-correcting.
The solution (which I found on the internet: cloudynights.com/topic/731949-zwo-asi2600mc-pro-flats-cause-issues/page-2) was to use flats & bias frames & this seems to work well for me (so far at least).

I don't bother with darks.

Thanks Pete,
What capture software do you use ?
Sky flats with a white t shirt or LED flat panel with or without t shirt ?
We’re your flats exposure time calculated by the software and a quick check of the histogram ? or you selected around 30,000ADU like most forum posts suggested for this camera and ended up with an exposure time of between 2 and 3 seconds
Cheers
Martin