摘要:
A camera system including a first section for forming an image at a focal plane and a second section slidably mounted on the first section for retaining a sheet of photographic material at a focal plane. A spring snap-action arrangement yieldably restrains the camera''s second section in two terminal positions with respect to the first section of the camera system. Complementary light barrier labyrinth structure respectively forming part of the two camera sections is structured to facilitate the aforementioned sliding movement essentially without friction. Adjustable elongated stop bars are provided on one camera section for limiting the amount of such sliding movement.