|
Sorry I meant when I look at the raw CR2 files (not FITS files) there are negative values (in fitswork).
I used to get DSLR images with EOS Utilities. Have just tried that again and I see the same thing. Attached is a screenshot of a bias shot with EOS Utilities, and viewed in fitswork with histogram to show negative values - and they clip at about -300.
When I put these files into PI I think they are getting clipped as there's a lot of pixels with values of zero. I think same is happening with DSS.
|