Originally posted by boriscleto You do realize that only the 50 1.4 and 35 2 have Thorium dioxide elements right? None of the other Super, S-M-C, or SMC-Taks turn yellow. But if you want to be ignorant, more Taks for the rest of us.
Yeah... *showing up at Violini's door in tinfoil spacesuit,* "You know, we'd better test those Limiteds for radiation, too.
"
Just for fun, I thought I'd show a little bit of Thorium glass, and the yellowing. (My aforementioned 35/2)
You can't see the concave front element too well, but you can see the yellowed bit.