35mm film
35mm film is a photographic film ; the best-known miniature film is used by the so-called Minox - "spy cameras". The film is in a cassette , the cartridge of which is loaded with film and is connected directly to a take-up spool. With this cassette the film loading should be simplified.
Minox format
The Minox miniature film is 9.5 mm wide and has a negative format of 8 mm × 11 mm. It is made up with a length of 36 or 30 images and is available as black and white and color film . Acceptable enlargements are only possible up to about 10 cm × 15 cm with this format, which is already significantly inferior to pocket film . A document film has a higher resolution and enables you to photograph documents and line drawings.
Miniature films, such as the films for the Minox “spy cameras” , are considered “exotic” but are still available on the market (as of 06/2013).
Other formats
The film for the Russian spy camera counterpart can be cut out “by hand”, with a suitable cutting machine, under darkroom conditions from commercially available 35 mm cartridge film and wound onto the camera's cassette. In contrast to the Minox, it has a width of 21 mm and a negative format of 18 mm × 24 mm (half format), which is more suitable for enlargements.