Dangers of radioctive glass in Apo-lanthar lens

[Rodrigo Ghessa Tostes Malta]

I find an Apo-lanthar in a flea market and bought it. Searching for information in this forum I read that it may contain a radioctive element. Some time ago I r ead that some lenses may be dangerous due to radiation. Can anyone tell if it is safe to use this lens? Thank you all

[David A. Goldfarb]

Take a look at this page for info on radioactive lenses:

http://people.smu.edu/rmonagha/mf/radioactive.html

[Jim Galli]

It emits Alpha particles. Don't sleep with it under your pillow. Don't remount it as eyeglasses. Sell it to me cheap...or go have some fun with it.