although the formats have slightly difference, the 645D diagonal is only 55mm while film 645 is 69.7mm. This makes the crop factor 1.267X in going to digital from film.
-- 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 Dario Bonazza Sent: Wednesday, March 10, 2010 4:38 PM To: Pentax-Discuss Mail List Subject: Re: 645D Exists (Or Will Soon) 41.5x56mm Dario ----- Original Message ----- From: "J.C. O'Connell" <hifis...@gate.net> To: "'Pentax-Discuss Mail List'" <pdml@pdml.net> Sent: Wednesday, March 10, 2010 10:25 PM Subject: RE: 645D Exists (Or Will Soon) > anybody know the actual dimesions of the pentax 645 format in mm? > > -- > 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 P. J. Alling > Sent: Wednesday, March 10, 2010 10:58 AM > To: Pentax-Discuss Mail List > Subject: Re: 645D Exists (Or Will Soon) > > > I came up with 1.27x but my math may have been off. > > On 3/10/2010 9:07 AM, Cotty wrote: >> I make the 'crop factor' (if you will) on the 645D to be 1.36x - can >> anyone confirm this? >> >> -- >> >> >> Cheers, >> Cotty >> >> >> ___/\__ >> || (O) | People, Places, Pastiche >> ---------- http://www.cottysnaps.com >> _____________________________ >> >> >> >> > > > -- > {\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fcharset0 > Courier New;}} \viewkind4\uc1\pard\f0\fs20 I've just upgraded to > Thunderbird > 3.0 and the interface subtly weird.\par } > > > -- > 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. -- 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.
