Archived posting to the Leica Users Group, 2001/11/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Feliciano writes: > I just picked up a beautiful Summicron DR. I've heard all the stories > about > how delicate the coating is on this lens and was wondering just HOW soft > it > really is? If I ever had to clean it, what would be the best way to do > so? > Will the coating be attacked by lens cleaning fluids? I'm guessing wet > tissue > is gentler than cloth. Any ideas? Comments? Warnings? I use the same era Summicron. I have never quite understood how people get the coating scratched. I only clean my lenses, at the most, once a year. In between cleanings, I use a soft camel hair brush (lipstick-tube type) to keep dust off the glass surfaces (front and back). I flick the dust rather than do a "healthy scrubbing." Your phrase "wet tissue" bothers me a bit. If you feel the need to use tissue, make sure you have all of the dust off of the lens first. Make sure you tear the tissue so that you have a ragged edge. Use just a drop of lens cleaning fluid (I learned this from experience when I destroyed a lens by having the tissue soaked). If you get a fingerprint on the lens, it is time to clean it as soon as possible...acids and oils can permanently etch the surface. Regards, Bill Larsen - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html