The "'Goerz Apo-Artar "'( Germany / USA ) photoengraving process lens was apochromatic in 1904, although ultra-tight quality control helped.
32.
In the haunting photoengraving series titled " 12 Trains, " the colors subtly change from one print to the next to suggest hours passing on a long rail journey.
33.
On July 20, three months after the earthquake, on a Friday about midnight, a fire of undetermined origin broke through the roof in the northeast corner of the photoengraving room.
34.
In addition, because of the chemical hazards involved in halftone photoengraving, the IPEU was also one of the first unions in the country to compel employers to establish health and safety standards.
35.
Goldberg patented improved methods for electroplating zinc on iron in 1902 and published numerous technical papers on improved printing techniques, reducing moir?effects in half-tone printing, photoengraving and other topics.
36.
The use of photoengraving for a halftone process that could be used to print grayscale photographic images dates all the way back to the 1839 introduction of the daguerreotype, the first practical photographic process.
37.
Combined with the inherently stark black-and-white nature of the photoengraving process, these devices served to break up the image into a regular pattern of dots of various sizes with optimized shapes.
38.
In the case of line cuts ( graphics in solid blacks and whites without gradations of gray or color ), the photoengraving is done on zinc, and the result is called a zinc etching.
39.
An early advocate of the photoengraving process over wood engraving for magazine reproduction of illustrative art, Remington became an accepted expert in reproduction methods, which helped gain him strong working relationships with editors and printers.
40.
The growth of the firm coincided to Upendrakishore s son Sukumar Ray going abroad on the Guruprasanna Ghosh Scholarship at Presidency College, Calcutta in 1911 to study at the London County Council School of Photoengraving and Lithography.
