2019年8月13日火曜日

RockPigment10987b

###################### Coloring of classic photographs・・since・1985 ··················································· Basically, a light-sensitive emulsion is water-soluble so that dyes can also be used, and dyes and pigments can be used as color formers used. However, as for vintage prints, dyes are beautiful in color but fade in color over several years. #########################

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