lpm Ciao, Graywolf ----------------------------------------------------------------
----- Original Message ----- From: Dan Scott <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, February 17, 2002 6:32 PM Subject: RE: Popular Photography 31/1.8 Limited test (WAS: Re: Pentax a "best ever prime lens" at Pop?) > Ed, > > What does the number between the f/stop and the letter grade stand for? > > Dan Scott > [EMAIL PROTECTED] > > >OK, I looked it up. Just for kicks, here's a comparison by the numbers > >of their current review of the 31 vs. their review of the 35 F2.0. I'm > >only giving the numbers at the 20"x24" end, since relatively speaking, > >they are the same in comparison at smaller sizes as well: > > > >31 F1.8 > >List price = $1,415.00 > >Measured focal length = 31.81mm > >Distortion = .45% pincushion > >F1.8/76.8/C+ > >F2.8/79.3/B > >F4.0/81.4/B > >F5.6/83.9/B > >F8.0/83.5/B > >F11.0/81.8/B > >F16.0/78.1/C+ > >F22.0/73.5/C+ > > > >35mm F2.0 > >List price = $498.00 > >Measured focal length = 33.77mm > >Distortion = .55% pincushion > >F2.0/63.6/C > >F2.8/65.9/C > >F4.0/91.5/A > >F5.6/95.3/A+ > >F8.0/93.2/A > >F11.0/90.2/A > >F16.0/89.2/B > >F22.0/79.2/C+ > > > >The 31 may be special, but is it really "that" special? I'd have to say > >the 35 compares pretty well to it. > > > >Thanks, > >Ed > >http://lightandsilver.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 .
