Mehrdad Sadat wrote: > > Peter, not true!! the new leica m 28/2 is very sharp wide > open. also how do > you know that the new sigma is better optically! > _____________________________________ I stated the Sigma "may" be better optically. I am not most familiar with 28mm F1.8 lenses, but since the Sigma is a new design and their EX series have performed very well (IMO) there is a very good chance it would best the Canon equivalent (which is an older design) optically. As to your Leica comment, I would assume you own this lens, correct? So before you get angry at what I am saying let me explain. I have used M series and other Leicas, the faster the lens the poorer the performance at widest aperture. Case in point, the Summilux-M 35mm F1.4 is OK wide open gets better as you stop down. If you compare it with the 35mm F2 Summicron at F2 through F4 the Summicron wins hands down. In order to achieve an F1.4 the certain compromises come into designing a fast lens. Same goes for the Noctilux 50mm F1.0 v. 50mm Summicron F2, the Summicron again is sharper from F2 through F8. The point here is do not expect an expensive and fast lens to be sharper than a comparable slower lens simply because it is expensive or may be designated with things like L, Aspheric, etc. The reason you pay the high high price is to get that fast F1 or F1.4 and not necessarily a superior lens at every aperture.
Peter K * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
