Nick, I'm in agreement there. When outfitting my *istD, I chose the new Tamron 90/2.8 Macro over the Pentax. I used to own the FA 100/2.8 Macro and while it is a fine lens, I'm not seeing any discernable difference between them in regards to image quality. But the Tamron is lighter to work with, manually focuses much better and is overall smoother handling. I am pleased with my purchase and would do it again, given the opportunity.
Bruce Friday, June 25, 2004, 4:29:53 PM, you wrote: NC> I had the Pentax F 100mm f/2.8 macro and the Tamrom 90mm NC> f/2.8 macro, and I sold the Pentax. It wasn't noticeably sharper NC> than the Tamron, but was a fair bit heavier. The Tamron is also NC> streets ahead with regards to manual focusing which is very NC> important in macro photography, due to its much larger focusing NC> ring and its clutch mechanism. NC> Nick NC> -----Original Message----- NC> From: "Dr. Shaun Canning"<[EMAIL PROTECTED]> NC> Sent: 22/06/04 23:13:09 NC> To: "[EMAIL PROTECTED]"<[EMAIL PROTECTED]> NC> Subject: Re: Pentax 100mm Macro vs Sigma 105mm Macro NC> Don't even think about it...buy the FA macro. It is head and shoulders NC> above the 3rd party stuff. NC> Cheers NC> Shaun NC> [EMAIL PROTECTED] wrote: NC> >Has any one had experience with both of these lenses? NC> Has anyone seen a comparison or done a comparison between these NC> lenses? I haven't been able to find a head to head comparison. NC> > NC> >I'm looking to get a macro lens and while all I have are NC> Pentax lenses, I might consider a third party lens if there isn't NC> much difference performance-wise and build quality. And I can NC> save about $150. NC> > NC> >Thanks in advance. NC> > NC> >-- NC> >John Lingelbach NC> >[EMAIL PROTECTED] NC> >"You're dumb as a mule and just as NC> >ugly! And if a strange man asks NC> >to give you a ride, I'd say take NC> >it!" - Grandpa Simpson to a Young NC> >Homer NC> > NC> > NC> > NC> >