I sometimes find the photodo ratings a bit dubious. As in the chart they have the F and FA with quite a large difference in peformance, although they are optically identical.
I had the FA100/2.8 macro and now have the Tamron 90/2.5. I would disagree with the photodo rating that the FA resolves less detail. Also the FA has better colour rendition and flatness of field. Regards, Paul ----- Original Message ----- From: "Mishka" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 13, 2002 9:51 AM Subject: Re: 100mm 2.8 Macro vs. 100mm 2.8 > alright, lust doesn't have to be reasonable. > let me rephrase it: the only limitation i have run into with series 1 > macro was film, not lens. provia 100f, scanned at 4000dpi. > > apart from myself, according to photodo.com the MTF ratings are > > Grade: 4.2 35mm/MF Tamron SP 90/2,5 macro > Grade: 3.9 35mm/AF Tokina AT-X AF 100/2,8 Macro > Grade: 4.6 35mm/MF Tokina AT-X 90/2,5 macro > Grade: 4.2 35mm/AF Sigma AF 90/2,8 Makro discontinued > Grade: 4.1 35mm/AF Sigma AF 105/2,8 EX Macro > Grade: 3.9 35mm/AF Pentax SMC-FA Makro 100/2,8 > Grade: 4.3 35mm/AF Pentax SMC-F 100/2,8 macro > Grade: 4 35mm/MF Vivitar 105/2,5 Macro Series 1 > > so, yes, pentax has a lens that is a tad better than vivitar. and still > behind tokina. whether it warrants 4 times the money, is, of course, a > very personal thing. > > mishka > > > From: William Robb > > Subject: Re: 100mm 2.8 Macro vs. 100mm 2.8 > > -------- > From: Mishka > > Subject: Re: 100mm 2.8 Macro vs. 100mm 2.8 > > > > > > > unless you are a collector, or have tons of spare > > > cash and time, i see no reason whatsoever to lust for macro > > > a*100/2.8 > > > > Obviously, you have never used one......<g> > > > > William Robb > Yahoo! - Official partner of 2002 FIFA World Cup > http://fifaworldcup.yahoo.com > - > 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 . - 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 .
