The Polaroid 545 4x5 sheet film holder features 3.25 x 4.25" (8.9 x 11.4cm) image area. Accepts Polaroid 4x5 sheet film and allows changing of film type after each exposure. Provides instant images in the format size of the camera.

The 545i 4 x 5 Sheet Film Holder fits most 4 x 5 standard press and view cameras and scientific/recording devices that are equipped with spring backs, lock backs and similar backs, without making any alteration to the camera or the focusing system. It can also be used with instruments (such as microscope and oscilloscope cameras) equipped with similar backs, and with the Polaroid MP4+ Cameras, the CU-5 4x5 camera, and the Polaroid Miniportrait 4x5 cameras.