crop factor on older lenses

Started Jun 6, 2014 | Questions thread
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crop factor on older lenses
Jun 6, 2014

Ok, my next question -

I understand crop factor and that my 45mm lens is equivalent to a 90mm lens in the 35mm world.

But how do I calculate the crop factor for an older lens?  I have the adaptor that lets me attach my Nikon 35mm prime to my M43s body.

What is the general crop factor that should be applied when one uses older lenses?


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Michael Bower
Ashburn, VA

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