Combined with a 2x tc both lenses make extraordinarily strong macros. I just discovered this trick a few days ago, and now every animal that comes close is caught in a portrait... However most of them --besides being blinded for a short time by the flash-- do not mind at all. Fortunately..
http://fotodag.fotopic.net/p43795190.html Cheers! Syb 2007/8/4, Mark Cassino <[EMAIL PROTECTED]>: > I've had a Kiron 105mm f2.8 macro for years. It has always been a joy to > work with. BUT - I recently added a Petnax DA-F 100 f2.8 macro. The > reason - chromatic aberration on the K10D and the Kiron, particularly at > high magnifications. The CA was visible using the Kiron on the *ist-D > body, but is more apparent on the K10D. > > The CA can be minimized using Camera Raw - but not eliminated, and is > less manageable in some shots than in others. > > I'd suggest doing some vigorous testing of the Kiron vs the Sigma and > see which one is superior re image quality. There's no question in my > mind that, on a digital body, the Pentax DA-F is better than the Kiron. > Don't how the Sigma sould stack up vs. the Kiron though. > > Personally, I'm hanging onto both lenses - there's something about the > feel of the Kiron on an LX that I doubt the plasticy DA-F lens will > match. And the Kiron's cumbersome and slow manual focus also translates > into very precise manual focus. But - it's use will be limited to film > shooting. > > - MCC > > > > syb vis wrote: > > I recently purchased a secondhand K10D kit with a Sigma macro lens > > 105mm F2.8 DG EX autofocus lens. > > > > I already had a Kiron macro lens 105mm F2.8 PK/A. In excellent shape as > > well. > > > > Now, I hesitate. Which one to sell? > > > > Must say that the focus ring on the Kiron is very solid. That's nice, > > but it also makes it a little hard to work with quickly. And that my > > first living insect pictures succeeded with the Sigma. > > > > See some on fotodag.fotopic.net > > . > > Do you have suggestions, experience knowledge or did you confront the > > same dilemma? Wat should I do? Or, maybe, should I better ask which > > lens will raise most money? > > > > Cheers > > Syb > > > > > -- > - - - - - - - - - - - - - - - - - - - - > Mark Cassino Photography > Kalamazoo, Michigan > www.markcassino.com > - - - - - - - - - - - - - - - - - - - - > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- ======================== Syb Vis, The Netherlands. "Since i bought my DSLR, i do no longer buy prints. Instead, i pay digital frames. Who said it would become cheaper?" ================================= -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

