Assuming pentax isnt lying about the focal lengths or lies in the same direction for both, the 14mm lens would be roughly 90 degrees on the APS sensor while a 15mm would only be 86 degrees, not a huge difference but would seem to be a slight but observable difference if in fact the focal lengths are correct.
Thanks for the info on the DA lenses. Would be neat to try one on a film body to see how much "margin" they have over the APS boundaries... JCO ======================================================================== ===== -----Original Message----- From: Rob Studdert [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 27, 2004 6:47 PM To: [EMAIL PROTECTED] Subject: RE: M42 ultra-wide On 27 Oct 2004 at 18:39, J. C. O'Connell wrote: > What about the 14mm DA 2.8 also being wider, faster, and costs a lot > less? Well yes it does cost less and it's faster but I'm not yet sure if it's actually wider in practice, I've found FL designations to be wildly misleading in the past. > QUESTION: Do the APS Pentax "DA" series lenses and/or APS bodies > (*istD) have any sort of interlocks on them to prevent mounting DA > lenses on any K series (FF) body? No. > Do the DA series have aperture rings? No. > Do the DA series have aperture cams (assuming they have rings)??? > Curious... No. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
