The true "normal" is determined by matching the focal length to the diagonal of the negative. This would mean a "normal" lens for 35 mm would be 43 mm. I never understood why 50-55 mm lenses became the standard prime lens on these cameras. Do the math and you will see that a 6x6 cm camera would use an 85 mm lens as the prime lens and, in fact, that is what they ALL used. If a 35 mm negative was as tall as it is long, 50 mm would work out perfectly. Does anyone know how 50 mm was chosen as the "normal" for 35 mm instead of 43 mm?
(A 35 mm negative is 36 mm x 24 mm.)
2006-10-26
17:24:41
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4 answers
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Picture Taker
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Photography