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Old 05-27-2019   #8
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Originally Posted by Kieran_Keeton View Post
What is the 35mm lens equivalent of a 90mm 4x5 lens, used on a 4x5 with a 6x7 roll film adapter?
A 90mm lens on a 4x5 inch camera with a 6x7 roll film adapter produces a 6x7cm image with a 52.35 diagonal angle-of-view.

A 44mm lens an a 35mm camera produces a 24x36mm image with a 52.36 diagonal angle-of-view.
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