Wednesday, March 19, 2008

MEDIUM FORMAT

Definition: Normally, a camera taking roll film (typically 120/220 but also 70mm and a range of obsolete roll film sizes), though there are arguably "medium format" cut film sizes such as 21/4x31/4", 21/2x31/2", 6. 5x9cm, and possibly even quarter plate (31/4x41/4"). The most usual formats on 120 films are 645 (15-on or 16-on, around 42x56mm), 6x6cm or 21/4 square (12-on, around 56x56mm), 6x7cm (10-on, around 56x70mm) and 6x9cm or 21/4x31/4" (8- on, around 56x84mm), though nominal 6x8cm, 6x12cm, 6x17cm, and even 6x24cm formats also exist.

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