tow_teo Posted June 22, 2020 Share Posted June 22, 2020 I noticed a haze-like layer on one of the lens element on this 50mm ‘cron. Any idea what this is? See attached pics. Link to comment Share on other sites More sharing options...
Rick_van_Nooij Posted June 22, 2020 Share Posted June 22, 2020 Haze from condensation, oil evaporation or fungus.....or some weird style of separation? 1 Link to comment Share on other sites More sharing options...
Niels - NHSN Posted June 22, 2020 Share Posted June 22, 2020 Can't say for sure but a few years back I experienced a similar pattern on the inside glass surfaces of my M6 finder window after a very humid trip to Okinawa. Moving around in a hot saturated humid environment and going in and out of cool air conditioned spaces caused servere condensation inside the camera. When dried out, it was almost impossible to see through the finder due to a pattern similar to what I see in your pictures. A trip to Leica fixed that - with the usual high price tag. Niels Link to comment Share on other sites More sharing options...
conrad_hoffman Posted June 22, 2020 Share Posted June 22, 2020 Common, never been sure just what it is but probably outgassing or some film that got humid/wet and then dried. Could be some kind of fungus, but it's too even. The lens needs to come apart and get cleaned. IMO, the sooner the better. Link to comment Share on other sites More sharing options...
SCL Posted June 22, 2020 Share Posted June 22, 2020 Open your wallet and reap the benefits...a good CLA should alleviate your issue. Link to comment Share on other sites More sharing options...
Robin Smith Posted June 23, 2020 Share Posted June 23, 2020 It's just got very dirty. It needs a clean. You will need someone you trust to do it. Robin Smith Link to comment Share on other sites More sharing options...
tow_teo Posted June 27, 2020 Author Share Posted June 27, 2020 Thank you all for your advice. Took the lens to 2 local camera techs. And both concur it is the cement that has deteriorated. One of the techs (old guy trained in Germany by Rollei) took apart the lens and confirmed this. Said in all his years, he has never seen this in a Leica lens before. Japanese lens yes, but not in a German lens. So I guess this is a goner :( Link to comment Share on other sites More sharing options...
SCL Posted June 27, 2020 Share Posted June 27, 2020 Deteriorated cement often can be rectified...the elements are separated, cleaned and recemented with a modern adhesive. Rather than classify it as a goner, I'd check into getting it fixed by knowledgable people who have successfully done it previously - I wouldn't trust it to a "local" repairperson without experience in this issue. There are several people in the UK and US. I'd contact Malcolm Taylor in the UK and DAG in the US. Know, though, that both probably have heavy backlogs right now, although I recently got a very quick turnaround on a lens from DAG. Link to comment Share on other sites More sharing options...
dlc1265 Posted July 3, 2020 Share Posted July 3, 2020 I just discover this in my 50mm F2 (V1) after shooting a roll. Switched to my 35, just a bit of dust. Thinking of my next steps. I am hesitant to send it away for months,,, Link to comment Share on other sites More sharing options...
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