I've just gotten my dads nikon FG out of the attic and hooked it up with some film and batteries. I set it up all ready for the first photo, but wasn't ready to shoot anything yet so I took the batteries out. I was fiddling around looking through a lens while the batteries were out and pressed the caption button (unaware of correct term for that) and it took a photo! I was unaware this could happen. Does it need batteries at all?
Read more: Does a Nikon FG work without batteries?