I know what your getting at but with APS digital the Angle of view is kinda odd. Just another drawback of converting Old lenses to new format sizes. This is why digital >From scratch systems may be superior in the long run If not going to use FF 24x36 sensor. jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Tuesday, October 10, 2006 4:23 PM To: Pentax-Discuss Mail List Subject: Re: Well, that's it, I cracked. Lucas Rijnders wrote: > On Tue, 10 Oct 2006 21:47:05 +0200, J. C. O'Connell <[EMAIL PROTECTED]> > wrote: > > Wasn't the 40mm focal length a little odd on 35mm as well? I always > thought it was the focal length that allows design of the smallest > possible lens, given the mount specifications. If I'm not completely > off-base with that, it would not have changed between M and DA... > > Can anyone confirm or deny? 40-45mm is typical for the smallest lens designs. Right at the normal length for film and well suited to very simple designs with excellent performance (Tessar et al). I'd love to see a 28mm Tessar, if it's doable (May not be due to register issues). -Adam -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
