photochromy

photochromy

(ˈfəʊtəʊˌkrəʊmɪ)
n
(Photography) photog the process or art of producing colours in photographs

photochromy

the process or production of color photographs; color photography. Cf. heliochromy.
See also: Photography
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Combining new technology and high quality, the lens benefit from special treatments: photochromy and polarization.