An ultra black film is disclosed, which essentially consists of a base, a Ni P alloy layer formed on said base and a phosphate layer formed on said Ni P layer, {HEAD ~ the spectral reflectance} of said {TAIL ~ ultra black film} being 0.04 to 0.4% 
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An ultra black film is disclosed , which essentially consists of a base , a Ni P alloy layer formed on said base and a phosphate layer formed on said Ni P layer , { HEAD ~ the spectral reflectance } of said { TAIL ~ ultra black film } being 0.04 to 0.4 %
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