Thanks for the quick reply! When I see the captured images via camera, they seem fine. Also, the images are opened without a problem in DSS However, in an article on the site below, a similar problem seems to be happening when opening the .nef file with PixInsight. amazingsky.net/2019/04/30/testing-the-ni...or-astrophotography/ So the .nef might have some compatibility issues, but shouldn't the FITS file have no problems then?Read More...