Aaaack! mold on M-Rokkor 90/4

A

alfredian

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Fleabay strikes again - no wonder the price was an as-is steal: mold on what appears to be the inner surface of the rear element. One "spider" off-center and a "web" over at the edge. Other than that (the lens is a mechical gem and shows little cosmetic wear.

Bottom Line: where does one send lenses to be de-fungused and re-collimated? I'm in the US (D.C. Metro area). Given the low initial investment, I can afford to have it fixed, if the glass isn't actually etched by this point.

Any guidance appreciated. - alfredian
 
For the worst cases and older Leitz lenses I've had good dealings with Focal Point/ John Van Stelten. He's got an older Elmar of my right now, but should be able to help get fungus out of your Rokkor and repolish and recoat if necessary. http://www.focalpointlens.com/fp_intro.html

Good luck, it's a nice lens, worth some investment.
 
Thanks MC - I just checked the site, looks useful. My first worry was getting a reliable collimation when reassembled, then I began to think it through, and as I suspected, etching is a possible factor. Should have known - my Dad was a ceramic engineer. Believe it or not, I do have a lens (Nikkor -F) that DOES have a (very dead) spider in it, complete w/web. I'm keeping that one as-is.
 
I'm a photographic equipment repair tech. I will remove fungus but will give no guarantee unless the affected lens element is replaced. Some lenses are so bad, I just write them off.

Sent from my GT-S5830
 
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