15 Jan 02, Paul Jones <[EMAIL PROTECTED]> wrote: > > by what number should i multiply the focal length of a 67 or > 645 lense to work out the eqivelant focal length in 35mm?
Paul, Approximately: 645 X 0.61 = 35mm X 1.64 = 645 (approx 0.6 and 1.6) 6X7 X 0.49 = 35mm X 2.04 = 6X7 (approx 0.5 and 2) Example: Medium Format ....................... 35mm Format ............ Med Format 645: 105mm times 0.61 = 64.05mm X 1.64 = 105mm 6X7: 105mm times 0.49 = 51.45mm X 2.04 = 105mm Regards, Tim Engel - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
