A question for you physics majors...
I currently own two micro (or macro) lens: a Macro-Takumar 50 f/4 and a Micro-Nikkor-P, 55 f/3.5. Both of these have small objective lenses, for a 50, and both are recessed so far into the mount that I really don't think I need a lens shade with either one, unless I point it direct AT the sun.
So, here's my question: what demands are made on the optics for the micro/macro lens? I don't find this arrangement on any of my other 50s, and I'm sure there is a very good optical reason for the small, recessed lens (at least it looks small and recessed to me.) So, can anyone tell me what's up?:confused: I'm curious.
Thanks to all who reply.
With best regards.