There's plenty of radioactive lenses out there. Many Takumars and Super Takumars for instance. https://camerapedia.fandom.com/wiki/Radioactive_lenses https://c

There's plenty of radioactive lenses out there. Many Takumars and Super Takumars for instance. https://camerapedia.fandom.com/wiki/Radioactive_lenses https://camerapedia.fandom.com/wiki/Radioactive_lenses When I first heard the term "radioactive glass" I thought this was just a term used to refer to very sharp lenses. Boy was I wrong. :)