On 19 Aug 2002 at 19:10, Tom Reese wrote: > I have some serious hots for a 20mm fixed length lens and I've narrowed down my > choice to either the Sigma 1.8 or the Pentax 2.8. I'd buy used Pentax in great > condition but I haven't seen any. Does anyone have any input on the optics of > these two lenses? Is there a compelling reason why I should buy one over the > other? The Sigma is $115 U.S. cheaper at Adorama. Is in inferior to the Pentax > in either optics or build quality? > > I don't think the 1+ stop difference between them is an issue.
Hi Tom, A friend of mine has the Sigma in Minolta mount, I wasn't that impressed. As compared to the Pentax it is absolutely huge, it has extreme light fall off wide open and noticeable geometric distortion. These observations were made casually and unfortunately I didn't get to check absolute sharpness, flare or other important attributes. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications.html - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
