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Radioactive Lens -- Yashica Auto Yashinon-DS 50mm f/1.7 (M42) - YouTube
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日期:2024-09-27
Lens: YASHICA JAPAN AUTO YASHINON-DS 50mm 1:1.7 (M42 mount) This video shows the radioactivity from a Yashica 50mm f/1.7 camera lens, as measured by a simple geiger counter with a pancake probe. This lens probably contains thorium oxide, which causes it t...看更多