I could be completely wrong, but if I figured it correctly you'd need a 958mm lens to get the same diagonal AOV on 4x5 that you got with the 170mm on APS-C. There was a nice aerial photography lens in the 1000mm range sold on e-bay not long ago. It went relatively cheaply IIRC. (It would be interesting to carry around with you and mount on a view camera thought).
Mark Roberts wrote: > William Robb wrote: > > >> From: "Mark Roberts" >> >> >>> I expected the Pentax Gallery to reject this one but they confounded me >>> again... >>> http://www.robertstech.com/peso.htm >>> >>> It's the Conemaugh Dam, about an hour's drive from Pittsburgh, which I >>> photographed while on a Sierra Club hike. Seems a bit Margaret >>> Bourke-White influenced to me. >>> >> Why would they reject it? It's a grat photoraph. >> It would be better if used a Wisner. >> > > Just the other day, out of the blue, my S.O. asked me, "Do you have a > large format camera?" > > "No" > > "Do you want one?" > > That got me thinking, hmmmm..... > > Now that dam photo was shot at 170mm focal length on an APS-C digital. > What focal length would give the equivalent FOV on a 4 x 5 Wisner? And > how much would it cost? (Wait - don't answer that second one. I don't > want to know.) > > > -- Entropy Seminar: The results of a five yeer studee ntu the sekend lw uf thurmodynamiks aand itz inevibl fxt hon shewb rt nslpn raq liot. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
