----- Original Message ----- From: "Bill D. Casselberry" Subject: Re: Note to the Brother hood
> William Robb wrote: > > > Its still a 300mm, just a big ass one. 450mm f/4 equivalent > > though, aint too shabby, and it's a darned good lens. > > No tripod mount though. Gotta make one for it. > > but (I may be wrong, of course), that 300mm FOV is > spread over the 56x69mm 6x7 frame. the tiny APS-sized > sensor is proportionally much smaller than compared to > a 24x36mm framing - much like Minox to 35mm. Since equivalancy seems to be the confusing part, lets base the comparison on the 35mm field of view, as easy to relate to. The 300mm focal length on the 6x7 "sees" the same field of view (more or less) as a 150mm lens does on 35mm. The same 300mm focal length "sees" things equivalent to what a 450mm lens would see on 35mm. The 300mm focal length is a short telephoto on 6x7, a medium telephoto on 35mm, and a long telephoto on the APS sized sensor (I think the sensor is somewhat smaller than APS). Butch gave a most excellent description the other day. Unfortunately, I lost it. William Robb
