There is nothing to convert because the focal length doesn't change. The equivalence is more of a shorthand for photographers who were accustomed to how 35mm focal lengths worked, and it has really outlived it's utility.
On Mon, Apr 12, 2010 at 7:26 PM, Tanya Love <tanyal...@bigpond.com> wrote: > I thought that "equivalents" were only if you were using FA lenses? I > thought that the Das removed this need to "convert"? > > Tan. > > -----Original Message----- > From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Bong > Manayon > Sent: Monday, 12 April 2010 11:29 PM > To: Pentax-Discuss Mail List > Subject: Re: Ultra-wide zooms > > On Mon, Apr 12, 2010 at 9:17 PM, David Parsons <parsons.da...@gmail.com> > wrote: >> Please repeat after me: There is no such thing as equivalent focal > length! >> >> They are APS-C lenses and the focal lengths are as marked. Super wide >> angle lenses. >> > > Amen. > > I take those numbers for their face value. I stopped thinking of > equivalents a long time ago. > > Bong > > -- > Bong Manayon > http://www.bong.uni.cc > > -- > 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. > > __________ Information from ESET NOD32 Antivirus, version of virus signature > database 5021 (20100412) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > > > -- > 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. > -- Aloha Photographer Photoblog http://alohaphotog.blogspot.com/ -- 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.