6. 1. 201126 tis. zhlédnutíThis video shows the radioactivity from a lens: "Olympus OM-System G. Zuiko AUTO-S 1:1.4 f=50mm" -- early version S/N=154xxx -- chrome filter ring -- "silver...
22. 1. 201212 tis. zhlédnutíLens: 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 sim...