Radioactive Cross-contamination of stored lenses from thorium glass in one lens.

[Robert Hart]

I stored an old Nikon f1.4 35mm lens in with the others in a lens case. It is yellow from the radiation from the thorium glass. Like an April fool, I didn't think. Now all my other lenses are infected and I shall have to put the lot out in the sun to bleach them clear again.:frown2:

 

[Robert Hart]

Before anyone gets into an obsession and injures their claws in a mad race upstairs to turn out their lens box, my comment above is a perpetration of a deceptive myth, an untruth, a fanciful fictional notion, a lie. However, levity aside, thorium lenses are probably not the sort of thing you should store under your low-slung bed.

Any comments as the technical aspects would be neverthless appreciated.