Sony Radioactive Sony Lens


New Member
Does anyone know of any other Sony lenses that are radioactive.? I have never heard of a Sony lens that has thorium elements like this one.
No, but back then there were quite a few lenses with thorium so it does not surprise me too much. It looks like a cool lens but the vignetting could be significant. They say the amount of thorium in these lenses was not harmful, but if I was of an age where I might have children I might hesitate.
Pentax had some of those.

Yes, quite a few makers did. I dug up this site that looks like a pretty deep dive into the subject.