Ive got 3 of the Nikkor 35mm 1.4 radioactive ones. One I've cleared as best I can, 3 weeks in the bright UV rich Hawaiian Sun, and one I've left in its natural yellow state, and one that is somewhat in the middle. The yellow one looks interesting in color, but looks quite nice in B&W. I use the cleared one all the time.]

Gureny-Mott!