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I have a question about magnification ratios in general. I thought that the focal length was the main determinant of how magnified an image will appear. I recently tested my 105 Nikkor AS MF lens against the auto Nikon 105 macro vr. The automated Nikon 105 had a much higher mag ratio than the manual focus lens, regardless of how I rotated the focus shaft.
I assume this has something yo do with the individual lens elements within the two different lenses. Can anyone explain this in simple terms?
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