Archived posting to the Leica Users Group, 2004/05/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Brad, My 35-70mm Vario Elmar has a constant aperture of f4, and Leica also offers f2.8 35-70mm and (I think) f2.8 70-180mm zooms which has breathtaking sizes and prices. Nathan brad daly wrote: > > here's a question for you smart folks: why is it that leica's R-mount > zoom lenses are all variable aperture, whereas canon and nikon's pro > lenses are generally fixed aperture. i assume there's some optical > reason for this, and i'm just ignorant. i know canon increased the > size of its mount considerably when it went from the FD to the ED (eos) > mount, which has allowed it some breathing room, wheras nikon worked > within the constraints of the F mount. i've only handled an R a few > times, but i do seem to remember it having a big hole. > > always a-wonderin', > brad > > -- > brad daly > brad@bradbrad.com > http://www.bradbrad.com > > What Would Bill Hicks Say? > > "War, what is it good for? It's good for business." > --Billy Bragg > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information -- Nathan Wajsman Almere, The Netherlands e-mail: n.wajsman@chello.nl Mobile: +31 630 868 671 http://www.nathanfoto.com/index.html