Archived posting to the Leica Users Group, 2002/03/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have a 50 Summicron that has a fogged element just behind the diaphragm. Once a long time ago I cleaned it myself. It was really difficult to get the fog off. The fog has come back so I'm going to send it to somebody who does it correctly. You can tell if an internal element is fogged by stopping down the lens and shining a flashlight through it. The shadow of the diaphragm will show up on the fogged element. Mike D - ----- Original Message ----- From: <kyfung@kaifa.com.hk> To: <leica-users@mejac.palo-alto.ca.us> Sent: Thursday, March 07, 2002 9:59 PM Subject: [Leica] fog up lens > > My 35 summicron fogged up (at leat it looked like fog to me, no resemblance > to fungus) on both the front and rear surface, I saw that when I shone a > flash light through lens. Can't tell if any one of those surfaces behind > thye first is affected but at leat they look clean. I clean it with with a > cloth and a lens cleaning solution from Kodak. It appeared that it's gone. > Then I inspect it a day later and the fog is still there. Any know why it > fog up up and how can clean it as to also prevent it from happening again. > Any advise is appreciated. TIA. > regards, > ky fung > Kaifa Magnetics > Failure Analysis > Tel: (86-755) 327-5000 Ext. 33215 > Fax: (86-755) 327-5376 > E-mail: kyfung@kaifa.com.hk > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html