>From what I've heard and also from limited personal experience, Sigma lenses are very good optically, but suffer in build quality.
Bill ----- I've had three Sigmas, and still have one. APO 70-300 F4.5.6 Macro. Really sucked at 300 mm. Images appeared out of focus, especially at the edges. It's gone. (FWIW, many people think the Tamron LD 70-300 is better. I haven't tried it.) I wonder how bad the non-APO version must be. EX 70-200 F2.8. The older version. This is a very good lens, really a cult lens. The current macro DG version is not as good optically as the current non-macro DG version (which is just a DG version of the earlier one that I have). Still have it. EX 180 F3.5 Macro. Also very good. I sold it on the list last spring when I got the FA* 200 F4 Macro. A number of people are now finding focusing issues with some Sigma lenses. Joe -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
