50mm f/1.4 S-M-C Takumar (Radioactive) : 無料・フリー素材/写真

50mm f/1.4 S-M-C Takumar (Radioactive) / s58y

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ライセンス	クリエイティブ・コモンズ表示 2.1
説明	-- 50mm f/1.4 S-M-C Takumar (Radioactive) This lens has a glass element in the rear group (reported to be the one next to the aperture diaphragm) containing radioactive thorium oxide.Taken with a Canon T2i/550D and Canon 100mm f/2.8 Macro lens at f/6.3. 50 1/15-second exposures at ISO100 in a focus stack (DoF stack) were combined with Zerene Stacker in DMAP mode. The exposures were spaced by pressing the ">" button on the EOS utility live-view screen. This is a 50% crop of the original image. See: www.youtube.com/watch?v=3ozOMssiP2E for radioactivity measured with a geiger counter. De-yellowing process for this lens: here
撮影日	2011-06-05 19:00:00
撮影者	s58y
タグ	Pentax Asahi Asahi Optical Company Asahi Pentax Takumar Pentax Takumar Asahi Takumar Asahi Pentax Takumar S-M-C S-M-C Takumar Super-Multicoated Super-Multicoated Takumar lens Takumar lens radioactive radioactivity radiation ionizing radiation radioactive lens radioactive Takumar radioactive Pentax radioactive Pentax Takumar radioactive Takumar lens thorium ThO2 thorium Oxide thoriated thoriated glass thoriated lens thorium glass thorium lens Canon T2i T2i 550D Canon 550D Canon 100mm f/2.8 Canon 100mm f/2.8 Macro Zerene Stacker Zerene DMAP Zerene Stacker DMAP focus stack DoF stack Deep Focus Fusion DFF 50mm f/1.4 Takumar 50mm f/1.4 S-M-C Takumar 50mm f/1.4 Super-Multicoated Takumar
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