35
729 days ago
radiation dose http://photo.stackexchange.com/questions/14483/what-kind-of-dose-can-you-expect-from-a-radioactive-lens/14488#14488
35
729 days ago
radiation dose http://photo.stackexchange.com/questions/14483/what-kind-of-dose-can-you-expect-from-a-radioactive-lens/14488#14488
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