This has been happening lately even though my camera is always in the same alignment on the scope. Some of the picture, in a given exposure sequence are 'landscape' and an occasional one is in portrait, that's not the problem though. When I come to process them I'll get a failure because of the geometry, ok I'll then find the offending pictures and rotate them to landscape. This means that I have to do each one individually and this can take a long time if 30 or 40 exposures need to be done. Finally here is the question, is there a process that can rotate and save them in a block? BTW I'm quite new to PI.