Archived posting to the Leica Users Group, 2004/03/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Yes I go to all the races, I am leaving for Bahrain later today. I will be in Montreal and Indy - I have relatives in Montreal and lots of friends in Indy (from my time at Lola). Remind me nearer the time and I'll let you know where I'll be. Frank On 29 Mar 2004, at 22:57, Robert Clark wrote: > 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 >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >