Archived posting to the Leica Users Group, 1996/05/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Mon, 20 May 1996, Eric Welch wrote: > At 10:59 AM 5/21/96, you wrote: > > >Interestingly, in its literature, Leica doesn't recommend the use of filters > >simply to protect the lens, saying firstly that the extra glass could under > >some circumstances impair image quality, and secondly that a lens hood is > >protection enough from rain and fingerprints. Also it says "a soft cotton > >handkerchief" can be used to clean the lens surface. Sounds a bit cavalier, > >but there it is. What say you? > > Arthur Kramer has told about how he cleans lenses, and I'll try to remember. > Never, never use a cotton handkerchief unless it's be laundered numerous > times, and make sure it's truly cotton. Even then, you're treading on thin ice. > > Arthur's technique is first blow of any grit, then rip sevearl lens tissues > in half, and roll them up so the torn end is lightly touching the lens > surface. Never apply direct finger pressure. Use a drop of cleaner > specifically for lenses. Put it on the tissue, not the lens, and move in a > circular motion. It takes a long time, but it works. > > Rip some more tissues, and clean off the residue from the cleaner, and the > process. I use ROR mist, which is used by many reparimen It doesn't leave as > much residue as Kodak lens cleaner. And it cuts finger grease very nicely. > It comes in a little pump bottle. > > Another thing: DO NOT - REPEAT - DO NOT use eyeglass cleaning fluid or the > impregnated tissues for eyeglasses. They will attack optical glass used in > lenses and damage them. I cannot stress that too much. > > There are also supposed to be some kind of lens "pen" that works like a felt > tip pen that's supposed to be safe for lenses. I'm waiting or Mike Johstone > at Photographic Techniques magazine to get back to me on tests he's going to > conduct on them. > > ========================== > Eric Welch > Grants Pass Daily Courier > > I think that I once saw Art Kramer use his shirt tail to clean a lens. Ed Meyers