Archived posting to the Leica Users Group, 1997/03/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Greg Reddick wrote: > > Where can one get these lenses cleaned for $30 The I quoted is the wholesale price I pay. Retail price is $50. Search for retired repairman in your area who doesn't have the overhead of a shop. This is probably one of your best bets for low repair or cleaning prices. Stephen Gandy > > >>> Steve <cameras@jetlink.net> 03/22/97 10:55pm >>> > Marc James Small wrote: > > > At 05:27 PM 3/22/97 -0800, Stephen Gandy wrote: > > >If you think I am imagining the fogging problem, call Don Chatterton. > > >He will likely be as amused by your attitude as I am. If you don't > > >know about it, it doesn't exist. > > >Right you are Ted. > > > > > > I have discussed this with Chatterton who denies there is such a > problem. > > The conversation was in the fall of 1995. > > Pick up the phone Monday, as will I, and call Don. Ask him why he > walks around with a small flashlight to examine optics at shows. Don is > a friend of mine, and this problem is a common topic of conversation. He > was the one who told me it was caused by the condensation of the > whale oil. > > While you are at it, also ask Tac or John of MAC Camera, or Leslie Bell of > Fuji. All are experienced buyers, and I find it hard to believe they will not > confirm that Leitz lens from the 50's and 60's having a serious fogging > problem--they deal with it every day and pay less for lenses with that > problem. > > Perhaps I should clarify "fogging." I am not talking about glass which is > fogged over and opaque. And I am not talking about dust or fungus. The > condition which necessitates cleaning, costing an average of $30 or > more per lens, is OFTEN NOT VISIBLE by simply holding the lens up to the > nearest light or window. > > To see it, you need a small powerful flashlight---sometimes even then the > problem can only be seen in one direction. So shine the light through > both ends of the lens to check it properly. For lack of a better > description, ANY light fog or smoke like effect on any of the elements, is > what requires the cleaning and is commonly known in the camera > business as "Fog" or "Haze." > > To get a better idea of what I am talking about, take a brand new lens > and do the light test as described. You will see nothing but clear glass. > That clear glass effect is what you are looking for in ANY lens > regardless of how old, because if its not crystal clear------you get > internal light reflections and loss of contrast. > > Nikon and Canon lenses from the 50's/60's are usually clear. The same > vintage lenses from Leitz usually need to plan a trip to the repair shop. > > If ANY fog/smoke/haze (whatever you want to call it) is visible with that > light, it needs a cleaning. > > While I agree with you that LA air quality sucks, I have also found the > same problem with lenses I bought in the Midwest and the East coast. > > Stephen Gandy