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Leitz Wetzlar Hektor 100mm f2.5 Projection lens modified M42 mount
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20140410-IMG_0817_Leitz Wetzlar Hektor 100mm f2.5 Projection lens
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20140410-IMG_0829_Leitz Wetzlar Hektor 100mm f2.5 Projection lens
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20140410-IMG_0816_Leitz Wetzlar Hektor 100mm f2.5 Projection lens