Hello again my APUG friends...
Dropping in to share a link that might be of interest to the community; came across a blog posting via www.petapixel.com about the radioactivity found in a number of the older lenses still floating about. Hopefully I don't scare anyone with this stuff but it's an interesting view nonetheless:
It would be interesting to compile a database of these lenses... what do you think?
All the best,