Avout 5 months ago I decided to try a gel product called "Blu Goo" on my coated eyeglasses. www.blugoo.com/ Superb results and absolutely no scratches to the anti-glare coating . They provide their own washable (blue, of course) microfiber cloth. I use my fingertips (after bath or shower so skin is soft) to apply, just a tiny amount out of the tiny jar. Sort of like applying automobile wax with your index finger tip. Then remove the dried film using the cloth. We're talking about 60 seconds for the whole process, here. There appears to be no polymerization on the lens surface after cleaning. The product is water-based and contains none of the usual no-no ingredients. If you need to know more, go here: www.blugoo.com/ I've considered using on filters but am not going to use on my R lenses until I hear from someone else who has. Cluck-cluck-cluck...big chicken, here. As to microfiber; I never use it on those rare occasions when I must clean lenses. I do the "breath vapor" thing, then gently rub with a very old tight-weave (therefore pretty much lint-free) cotton dish towel that has been washed repeatedly (maybe 50+ times over the past several years). I always have one clean old dish towel available for that purpose only. Thing about microfiber is that it is not very absorbent (try drying wine glasses with a microfiber towel if you don't believe me). Also it seems that there are different grades which actually can scratch. Sort of a polymeric crap shoot. Probably better for outer garments than for cleaning fine (read as, Leica/Contax/etc.) optics. I now deactivate my Obsessive-Compulsive Module and yield to the Forum on this topic. Bob Bob Shaw rsphotoimages@xxxxxxxxxxx On Jan 16, 2010, at 10:21 AM, David Simms wrote: > I couldn't agree more; less is more. Even least may be too much. I'm not as > hung up on cleaning filters though. I'll probably email Gerry Smith, the > Canadian dean of Leica repair, to get his input, just to be sure. > cheers > Dave > > > > > ________________________________ > From: Sonny Carter <sonc.hegr@xxxxxxxxx> > To: leicareflex@xxxxxxxxxxxxx > Sent: Sat, January 16, 2010 10:01:10 AM > Subject: [LRflex] Re: formula for lens cleaning fluid > > On Sat, Jan 16, 2010 at 11:51 AM, David Simms <simmszee@xxxxxxxx> wrote: >> Hmmmm. Is it capable of cleaning the lettering, for instance on a Leica >> lens ? >> I think I'd find myself being somewhat squeamish about using it on optical >> surfaces although the (possible) Leica-sanctioned mixture that I mentioned >> would probably not be much less nasty. >> Thanks >> Dave >> > > I dunno, many of the older lens components were cemented with organic > materials. > > As far as buying, fixing up and selling, how do you know the long term > effects of lighter fluid on the lenses? You don't have them any more. > > I think I'd just be careful. Less is more with lenses. > > -- > Regards, > > Sonny > http://www.sonc.com > http://sonc.stumbleupon.com/ > Natchitoches, Louisiana > (+31.754164,-093.099080) > > USA > > > ------ > Unsubscribe or change to/from Digest Mode at: > http://www.lrflex.furnfeather.net/ > Archives are at: > //www.freelists.org/archives/leicareflex/ > > > > __________________________________________________________________ > Connect with friends from any web browser - no download required. Try the new > Yahoo! Canada Messenger for the Web BETA at > http://ca.messenger.yahoo.com/webmessengerpromo.php > ------ > Unsubscribe or change to/from Digest Mode at: > http://www.lrflex.furnfeather.net/ > Archives are at: > //www.freelists.org/archives/leicareflex/ ------ Unsubscribe or change to/from Digest Mode at: http://www.lrflex.furnfeather.net/ Archives are at: //www.freelists.org/archives/leicareflex/