radioactive lenses

gtc Registered Users Posts: 916 Major grins

September 1, 2005 edited September 1, 2005 in Cameras

in researching 1.4/50 Takumar lenses I came across an interesting article which says that some of the rare earth coatings once used are slightly radioactive.
http://medfmt.8k.com/mf/radioactive.html

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Canon 20d,EFS-60mm Macro,Canon 85mm/1.8. Pentax Spotmatic SP,Pentax Super Takumars 50/1.4 &135/3.5,Pentax Super-Multi-Coated Takumars 200/4 ,300/4,400/5.6,Sigma 600/8.

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