Canon EF 200mm f/1.8L USM Holy Grail

Thank you

Does anyone know of any replacement glass for this lens? My rear element has fungus on it that is majorly distorting the IQ. I took it to the only shop that I could find that would even attempt to work on it and he said after taking the lens apart, that only the rear element has issues, but the fungus has eaten into the glass and would need to be replaced. I can't find anything/anyone with a rear element in any corner of the globe.

Is there such a thing as someone making a custom piece of glass to replace an element? If so, any specific shop?

Sad to see this happen to such a beautiful piece of technology/art.

drchrisdvm2009 wrote in post #19181483
Does anyone know of any replacement glass for this lens? My rear element has fungus on it that is majorly distorting the IQ. I took it to the only shop that I could find that would even attempt to work on it and he said after taking the lens apart, that only the rear element has issues, but the fungus has eaten into the glass and would need to be replaced. I can't find anything/anyone with a rear element in any corner of the globe.

Is there such a thing as someone making a custom piece of glass to replace an element? If so, any specific shop?

Sad to see this happen to such a beautiful piece of technology/art.

That sucks. Custom grinding and element? That's something I've never heard of,. no idea what that would entail cost wise. I found this;
https://www.knightopti​cal.com …uv-vis-nir-optics/lenses/


I'd suggest it would be more plausible to find an old beater lens for donor parts. They used to be found often enough.

The hydrogen peroxide "bath" for the lens element could help, if it's not too late.

This glass can also shoot decent landscapes!!!

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