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Old May 29, 2008, 11:09 AM   #1
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I have a 85mm F1.8 prime, would it be a huge difference betweenthe 100mm f2.8 macro lens? Does it have to say macro lensto do macroshots?
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Old May 29, 2008, 1:55 PM   #2
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IMO not much:

The macro can get to life-size 1:1 (31cm) vs only 1:8 (85mm) for the 85mm. The MTF are pretty much similar except for the corners on the 85mm being worse @ the larger apertures while a macro should be sharper from edge to edge (also less noticeable on the distortion i.e. flat field)
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