Schneider 50mm f 1.9 needs help

[jayd]

I have a Schneider 50mm f 1.9 in Kodak Retina DKL mount that has a fungus ruined rear element, I've done all the tricks: cold cream, antifungal creams etc. no help if anyone has or sees a lens that has a good rear element please let me know, I don't need anything but a rear element so front can be missing broken whatever. unfortunately these are a hot commodity on Ebay these days with people adapting them to digital so just buying another is not a good option.


Thanks
[e-mail]

[Stephen]

The trouble is that fungus leaves behind an acid that attacks the glass, it is etched in permanently, only a grinding and polish would remove, far beyond home treatment. Cleaners may stop the fungus, and like scratches they may not reduce performance much. A fast lens though, will suffer more than a telephoto, where for instance a good hood and yellow/orange filter will allow a bad lens to work in B/W
Stephen.

[daveh]

I presume optical companies which could do that sort of lens work are thinner on the ground these days. I remember Adams Optical in London, but they seem to have "gone".

[mickeyobe]

Some opticians still grind their lenses.
I don't know if that qualifies them to correct a camera lens though.
It may be worth a try.

Mickey

[barbarian]

You might want to check if there's an amateur astronomy club in your area. Many of them grind glass blanks to make reflector mirrors, and they might have some expertise that could help you.