Originally posted by taks On the specification table of the lens review, it lists the Min Focus and the Max Magnification. Does the Minimum Focus Distance change when used with a crop sensor camera? I don't think it would, but then what happens to the Max
No. The MFD is a lens property and cannot change regardless of what camera you put it on. Just like other lens properties. However, the FoV changes, which
appears to increase focal length, and therefore magnification. So an APSC camera and FF camera with the same DFA 100mm mounted would produce slightly different looking photos of the same bug (subject). The bug would fill only part of the FF frame, but would fill almost all of the APSC frame. In that regard, the APSC photo would look like you got closer. The other thing is MP - APSC usually has higher pixel density, so the macro magnification ends up with more detail than the FF would have in the APSC area.
If you would print these two images, the APSC one would appear to be more magnified and have more detail on the bug. Of course, if you use APSC camera with low MP or FF camera with higher MP, this would change a little.
All in all, I would say not to worry about this at all. Take photos, get close, go macro, have fun. Upgrade to FF when you can clearly list the reasons why. Until then, the APSC gives you everything you want.
Last edited by Na Horuk; 09-23-2016 at 01:37 PM.