n through the green screen, is opaque in the parts tion with color screens, the. photographic positives being of such a nature as. not only to define the out- portions are represented and through which green representing red, but is transparent in the parts re- presenting white, and more or less… … on thescreen presents all the colors parts thatare green in the subject of the thing represented. represented, it will be transparent Mr. Gray spent a large portion of also in parts representing yellow. In last year taking views in the Yellowstone National Park, a similar way a picture taken…
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