Sheet film is a film format used in photography that comes in sheets rather than rolled form. It is mainly used in connection with large format cameras. During photography, the single sheet of film corresponding to one image is loaded into a film cassette and exposed. After exposure, the sheet film, like 35mm or medium format film, must be developed. This differs from instant film, which can also be called sheet film, but does not require extra development.
Various sizes / formats
Plan films are available in different sizes, since film stock can theoretically be made up in any size. For example, the most common sizes in which you can buy ready-made material are 4" × 5" (10.16 cm × 12.7 cm) and 8" × 10" (20.32 cm × 25.4 cm). However, there are many more sizes available and you always have the option of cutting your own format.
Plan films are usually supplied in boxes of 10, 25 or 50 sheets. The individual sheets must then be transferred to the film cassette in the dark. The price per image for sheet film is significantly higher than for other film formats. This is due in part to the lower demand and less widespread use of the format in the amateur segment.
Application areas of large format photography
Nevertheless, flat films are popular with professional photographers because of their high resolution and detail. Especially for portrait photography, large format cameras are popular because the images, due to the large shooting format, have a very high depth of field and thus very impressive effects can be achieved.
Landscape photographers love cameras for this film format because of the level of detail that can be captured on the film stock. With the right optics, even the smallest structures on the horizon can be captured in very good quality.
