I don't believe the flash does, but I am more convinced all the time that the film advance does. I had my camera set up on a good trail and for a few days I got good photos. Then all of a sudden........nothing. No pics for a week. Well, I got to looking more closely and them little buggers walked the same trail, and just before they got to the tree where my camera was, they veered left and behind the tree. Then they veered right and back onto the trail.......Sneaky rascals I tell ya!