Archived posting to the Leica Users Group, 2001/11/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In a message dated 11/24/01 10:37:59 AM Eastern Standard Time, durling@widomaker.com writes: > I have to say that a fingerprint on the lens is definately a concern with > the Summicron of the DR vintage. .............as far as I am aware, a fingerprint on any lens surface of any vintage is a concern if not removed fairly promptly. The fingerprint mark represents oils or acids that will etch the lens surface. A hard or soft coating will make no difference once the etching process has taken place though some coatings may be better inhibitors of the etching process than others. Keep them fingers to themselves. If you have wandering fingers that won't behave and you cherish your lenses (whether Leica, Nikon, Zeiss, Canon, Minolta (thank you, Felix)), run the risk of slight image degradation and protect them with - heaven forbid - a UV filter. seth LaK 9 - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html