I've scanned in a picture of two elements from my radioactive Zuiko
50/1.4 to show the color cast. It's at
http://mrg8.physics.wsu.edu/mark/5014.html
The yellow cast to the radioactive Zuiko 55mm f/1.2 is even more apparent
since the front element is thicker so it appears more yellow, and the
rear element is composed of radioactive rare-earth glass as well whereas
in the 50/1.4 only the front element is radioactive.
Mark Marr-Lyon
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