A film pack is a self-contained cartridge or container holding multiple sheets of film, designed to allow the photographer to advance from one sheet to the next quickly and conveniently without the need to handle individual sheets or reload in a darkroom. Once the film pack is fitted to the camera or a dedicated film pack adapter, the photographer simply pulls a protruding tab after each exposure to remove the spent sheet and bring the next unexposed sheet into position ready for the following shot.
This system offered a significant practical advantage over traditional sheet film holders, particularly in the field, as it allowed for faster shooting and eliminated the need to carry and manage multiple individual film holders. The slim, lightweight design of film packs also made them well suited to portable and press cameras where speed and convenience were important.
Film packs are most commonly associated with Polaroid instant photography, where the pack contains not only the film sheets but also the chemical developers required to process each image immediately after exposure. In Polaroid's system, pulling the tab after exposure initiates the development process, producing a finished print within a matter of minutes. Instant film packs continue to be produced today by both Polaroid and other manufacturers, maintaining a dedicated following among photographers who value the unique qualities and immediacy of instant photography.