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The New York Tnai Mifiiot. March 26. 1916Thendensity on the red negative, while a green object is much denser on the green negative. From these two negatives two positive prints in black and white aresecured by contact printing in a manner similar to that of making a lantern slide.the image on the positive plateprinted from the green negative is colored red, while the positive from the rednegative is colored green.The new process for coloring these plates was discovered by the chief chemist of the Brewster Camera Company, Hoyt Miller. By this treatment tho black and white positive is converted into a pure dye image and the opaque black silver eliminated in a few seconds, while at the same time transparent portions of the positives which form the whites in the final picture are protected from the slightest discoloration in the dyes. Plates of great luminosity and brilliance are thereby secured, so that when combined they will form a sharp and perfectly colored image without the slightest discoloration in the whites. Before this there was no satisfactory method of coloring pictures to be printed on paper.“ After the two positive plates are colored/’ said Mr. Brewster, ** they are combined and registered to form the completed picture, which will appear in most of the natural colors. The emulsions on the two plates are then stripped onto their final support, which may be paper, canvas, porcelain, or ivory—thelatter in case of a miniature.“ I believe there are great possibilities in this process aside from the aesthetics of beautiful portraiture. It will be useful in scientific research work in biology and pathology, of great value in nature study in schools, and its capacity for showing the wonderful hues of ceramicsis limitless.”Photographs of Mrs. John Purroy Mitchel, among the first ever taken by the Brewster process of natural color photography. The two pictures of Mrs. Mitchel as reproduced are as they appeared when ready to becolored. The red print (marked ** A ”) is differentiated from the green print (marked “B) by the greater depth depicted on the red rose, while the gown, being one of the shades of green, appears stronger in the green print.The two colors used in the process are orange red and bluish green. Both, when combined, reproduce with great fidelity all compleiions and variety of col-Thendobtained,and browobtainedweaker shades of red and green, which naturally tend to be yellowish, while the true red and green in the colors, which Ire complementary, neutralize each other and render a fair yellow, especially in artificial light.Blues are secured by the addition of some red to the blue green. This red interferes with its complementary color, blue green, neutralizing it, thus allowing the nure blue to be transmitted.
Newspaper Details
New York Times
New York, New York, US
Sun, Mar 26, 1916
Page 71
Full Page
Clipped by
Nick N.
IL, USA 30 Apr 2022
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