Quote Originally Posted by titrisol
I have at least one of the "radiactive" lenses and I'm very happy with its performance, given it ii a 40 year old lens
So have I, and I'm not selling it!!!

The radiation levels are low, but I wouldn't put it under my pillow. The chance of getting unhealty doses by normal use are practically zero, but if you were to eat it (or sleep with it under your pillow) it's a different matter.

I have also noticed that use of "radioactive", and sometimes worry if we're heading back towards the "Radium Health Spa" craze...