In my opinion, the modern DSLR usage of the term "full frame" means cameras and lenses designed for 24x36mm sensors. It doesn't mean all the various formats out there are full frame just because the lens fits and covers whatever non 24x36mm frame size is being used. Pentax DA lenses are not "full frame" lenses in the context of todays gear.
-- J.C. O'Connell (mailto:hifis...@gate.net) Join the CD PLAYER & DISC Discussions : http://tech.groups.yahoo.com/group/cdplayers/ http://launch.groups.yahoo.com/group/cdsound/ -----Original Message----- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Boris Liberman Sent: Sunday, December 19, 2010 8:00 AM To: Pentax-Discuss Mail List Subject: Re: New 12-35 lens on the way On 12/19/2010 2:11 PM, paul stenquist wrote: > Then why worry about the lens frame? A lens designed for APS-C will > outperform one designed for 24 x 36. (They're both full frame. Just > different frames.) Paul I opine (may be wrong, but that's my right) that some 24x36 designed lenses outperform some 18x24 ones. In particular, some Sigma EX 24x36 lenses show impressive degree of correction of geometric distortions. For my kind of shooting it makes them particularly attractive given their price tag. You're however absolutely right that there are no "partial" frame lenses here. Unless of course, we're speaking of circular fish eyes /grin/. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
