Kodak Pocket Instamatic camera and film, 1972.

Kodak's introduction in the 1960s and 1970s of drop-in film cartridges, including the miniature 110 format, brought colour photography to the snapshooter. These films and their cameras were so easy to use that colour photography was no longer difficult; in fact it was actually easier than black and white. The photographer simply dropped the cartridge into the camera, shut the back and began taking pictures. Once the film was finished, the cartridge could be plucked out and sent off for procesing.