Archived posting to the Leica Users Group, 2004/03/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hey Frank: Do you travel with the team to fly-away races? I'll be in Montreal and Indy...it'd be nice to meet you and say hello (of course, if you do go to the fly-away races, I doubt you have much time.) Robert Clark Lancaster, PA Frank Dernie wrote: > No, I am just a design engineer with 30+ years of experience and > nobody has broken the laws of physics yet. There are some > ameliorations possible - particularly if standards are lowered. Until > there is a sensor with a planar surface which needs no additional > microlenses or filter it will not be possible to use all M lenses > equally well, or any other for that matter it is just that lenses very > close to the sensor exacerbate the problem. It is quite noticeable, > and well documented in Chasseur d'Images that even with slr lenses > there is a significant difference in "match" between different lenses > and cameras. I do not have the article to hand, but one of the L Canon > lenses matched the EOS 10D much better than the EOS 1Ds. It is obvious > when you look at a ray trace that this must happen with a layered > sensor, it is merely a question whether the shortcomings are > acceptable or not at the magnifications used. > I guess Leica thought not but decided to respond to Epson in case the > level of quality was acceptable to customers (even if the Leica > engineers were not satisfied themselves). Maybe there is a new type of > planar sensor in the offing that is secret at present. I still wish > they would make a replacement door for any M with sensor and contacts > to a base with the electronics in - I would be happy to cock the > shutter manually. > Frank > > > On 27 Mar 2004, at 19:02, Leicajay@aol.com wrote: > >> <<In a message dated 03/27/2004 1:32:26 PM Eastern Standard Time, >> Frank.Dernie@btinternet.com writes: >> I doubt there is suddenly a technical solution to suit all lens designs >> since each M lens has a unique set of angles of incidence to the >> focussed plane - see Erwin's book. Perhaps by accepting lower standards >> and using APS sized sensor the worst of the problems can be neglected.>> >> >> >> Oh ye of little faith in Leica ;>) >> _______________________________________________ >> 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 >