While taking photos of a friend, I encountered a pretty major problem. Halfway through the shoot I started to see a small underexposed area at the botom of the frame, and thought it might just be due to lighting. After adjusting lighting (nothing made a difference) I imported the photos into adobe bridge and switched memory cards to see if it made a difference. The problem has quickly become far worse than it was at the start. Now, half of the photo is messed up. Has anyone seen this before? Is something wrong with my sensor? I can provide a raw file upon request.
