New design, optimized for size over performance. Quite a good lens, but inferior in performance to both the DA 14/2.8 and DA 12-24/4. Smaller than a FA 50/1.4 though. Like the DA 21/3.2 it's marginally inferior to the older and larger equivalent design.
-Adam On Thu, Apr 15, 2010 at 8:51 PM, J.C. O'Connell <[email protected]> wrote: > what about the DA 15mm? > > -- > J.C. O'Connell (mailto:[email protected]) > Join the CD PLAYER & DISC Discussions : > http://tech.groups.yahoo.com/group/cdplayers/ > http://launch.groups.yahoo.com/group/cdsound/ > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of P. > J. Alling > Sent: Thursday, April 15, 2010 7:32 PM > To: Pentax-Discuss Mail List > Subject: Re: Ultra-wide zooms > > > Unfortunatly it hasn't been done. Most prime designs are at least 10 > years old. In the case of the DA 40mm limited it looks like it's about > thirty years old, (see the M 40mm f2.8). > > On 4/15/2010 1:35 PM, J.C. O'Connell wrote: >> How many times do I have to tell you to make the point? >> A zoom has to do much more than a prime so the zoom cannot >> be "better" or even equal to a prime with BOTH using state of the art >> designs and optics, period. Whatever they do to improve zoom >> performance over the years can also be applied to primes. > the PDML, please visit the link directly above and follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
