If you are using a DSLR it's tough to say. I use a Kiron 100mm f2.8 macro and it is outstanding on film - but has some Chromatic Aberration on the *ist-D and more on the K10D. You can correct for the CA to some degree in the RAW interpreter, but not 100%. I also see some CA using the M50 f4 for snow crystals - but in that case it actually works to the advantage of the shots.
I don't see any CA in the A* 200 f4, or Sigma EX 50mm f2.8 - so if using a a DSLR my gut would be to look for a very well corrected lens. If using film- it does not seem to be a problem. - MCC Walter Hamler wrote: > I need a macro lens. Don't want to spend the bucks for the latest Pentax AF, > for that matter I think I would prefer a MF version. KEH has some 100mm f/4 > in different versions, one being an A model. They also have a Sigma 90mm > f/2.8 A . > Anyone know anything about these or others that I need to consider? > > Walt > > -- - - - - - - - - - - - - - - - - - - - - Mark Cassino Photography Kalamazoo, Michigan www.markcassino.com - - - - - - - - - - - - - - - - - - - - -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
