J. C. O'Connell wrote: > I thought we were talking Pentax/Pentax mount lenses.
I never said that. My original recommendations were for K-mount lenses, however. The Sigma I owned was in K-mount and used very nicely on the *ist D. > Using regular (non high mag optimized) lenses for macro work is not > going > to give you the same overall image quality > as true macro lenses, and TCs will only make > matters worse. The sigma IS a MACRO lens (it says so on the lens itself). The Canon doesn't say "macro" on it but at 1:3 is considered a macro lens. > > When I say general purpose, its NOT my specific purpose > or your specific purpose, its GENERAL PURPOSE > (all around MACRO usage) where a macro lens would > give better results than a NON MACRO > lens would. I don't agree than 90-105mm and longer > is a good general purpose macro lens focal length for APS. > > The original poster did not specify a specific > usage so that is why I recommended a good general > purpose MACRO focal length on APS , like the 50mm SMC-A MACRO lens. And for the same reasons I recommended a SMC-A 100/2.8 (or vivitar Series 1 105/2.5). I think the ability to go 1:1 without tubes and a longer working distance is a better choice. -- Christian http://photography.skofteland.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
