I was looking at the reviews for a couple Macro lenses, and they all spec out an MFD and a Minimum Working Distance.


I understand the MFD, as all lenses have that, but I don't understand what a working distance is. It's usually quoted as approximately half of the MFD. How does that work? I thought the MFD is the limit - meaning you the glass won't focus any closer. Obviously I'm missing something...


Thanks for any help you can give me. I can wait to try some macro shots, but I need a good lens first, and this MWD seems to be an important part of a lens' capabilities.


Thanks again!