I just completed taking a number of lights, biases, darks and flats with my 5d Mk III. When I tried to integrate the biases, the master came out in landscape orientation as expected but only about 2/3 of the frame had data; the right 1/3 of the frame was black. I then noticed that when I opened some of my frames in Photoshop they are portrait oriented and some are landscape oriented. I then noticed my camera has Auto Rotate on. Is this possibly the cause of my problem, and is there a way to fix things?
Thanks!
Wayne