Archived posting to the Leica Users Group, 2006/10/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Those non-Leica LTM lenses have nice glass, but the corroded bodies can be murder. John Van Stelten is still trying to get my 50/1.5 Sonnar LTM apart so it can be cleaned and lubed. Jeffery Smith New Orleans, LA http://www.400tx.com http://400tx.blogspot.com/ -----Original Message----- From: lug-bounces+jsmith342=cox.net@leica-users.org [mailto:lug-bounces+jsmith342=cox.net@leica-users.org] On Behalf Of Marc James Small Sent: Thursday, October 26, 2006 11:21 PM To: Leica Users Group; 'Leica Users Group' Subject: RE: [Leica] How much for a Nocti At 11:38 PM 10/26/2006, G Hopkinson wrote: >Henning and Mark, I really respect the opinions >and experience of the pro shooters here and I know we've had a thread on this >before. Probably like religion or politics no >one will ever change anyone else's mind on this. >In your experience then, you consider that there >is a demonstrable loss of image quality as a result of having a (high quality) >filter fitted? Or you just don't think that it >is worth the effort or expense to fit the >filter? Yes I understand that modern Leica >lens coatings are reportedly tough. Those of >older lenses are evidently less so. We have all >seen many ads that begin "usual wipe >marks on front element" or similar. Hoppy Leitz was forbidden to use the Smakula vacuum coating technology owned by Zeiss until 1960, so they were forced to use a drip-coating method in the interim which often caused the coating to be soft and evanescent. After 1960, all Leitz/Leica coatings are really hard. There is a good book which you might want to acquire, entitled NON-LEITZ LEICA THREAD-MOUNT LENSES: A 39mm DIVERSITY, as this matter is discussed there. The book is MOST highly recommended -- for that matter, Jeffrey Smith needs to get a copy also, to see all the 5cm/50mm lenses which are missing from his arsenal. Marc msmall@aya.yale.edu Cha robh b?s fir gun ghr?s fir! _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information