The Polaroid 545P Pro 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. The Model 545 Pro 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. Some of the advanced features include:
Development time automatically adjusts to ambient temperature LCD display shows f-stop change recommendation, based on ambient temperature; and audible and visual prompts for film processing timing.Development timer is automatically activated when the lever is moved to "p" for processing Timing automatically adjusts to ambient temperature, so every shot is optimally timed, reducing film waste Audible and visual prompts. Simply pull the film and wait for the automatic prompt Timer counts 3 quick shots concurrently. Series of quick shots optimally timed Timer settings for all 4 x 5" sheet films and positive/negative films. Optimally times every film type Programmable auto-power shut-off prolongs battery life LCD backlight makes processing information visible in dimly-lit studio environments Exposure compensation indicator recommends f/stop changes based on ambient temperature Timer allows you to switch between film types, to accommodate two film types during a photo shoot Interior twin locking lugs prevent negative from shifting or skewing as the dark slide is moved in and out Strong, rugged, long-lasting, high-impact, glass-filled body Film entryway has rounded corners allowing smooth, error-free film sheet insertion Film engagement indicator confirms the film is properly engaged for proper film exposure Easy access to film rollers for easier cleaning, reducing photographic defects Fits all cameras designed to accept Polaroid 4 x 5 film holders