Archived posting to the Leica Users Group, 2012/03/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]That's a complex zoom ...... Try a 35 f1.4.....Nikon AIS ( no AF) and you get $400-600, used. Find me a Leica lens in that price category..... 1/10 the price. Frank Filippone Red735i at earthlink.net Reasonable? 14-24 2.8. 2k. Leo Wesson www.leowesson.com On Mar 28, 2012, at 19:08, "Frank Filippone" <red735i at earthlink.net> wrote: > Nikon and Canon both sell them....at reasonable prices.... They must > be retrofocus lenses to work on an SLR. > > Maybe the problem is ... reasonable prices.... > > Frank Filippone > Red735i at earthlink.net > To do a wide angle fast lens, you will need retrofocus design, even > for rangefinder where there's no mirror box. The mostly symmetrical > designs like the Biogon do not scale to fast aperture. If I understand > it correctly, a retrofocus would be like putting a reducer at the back > of a longer than wide angle lens, thus adding complexity. And since > fast lens make the aberration situation worse, further complex design > is needed to control them. So it's sort of like a double whammy. > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information