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Anonymous
>>138186 To get the equivalent FoV and DoF, you have to multiply both focal length and aperture number by the crop factor; thus, 50/1.4 = 75/2.1, and there's quite a bit of difference between f/1.4 and f/2. (The smallest DoF you can get from a 85/1.4 lens on film is so small, though, that it's not often useful)
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