to produce the propervalue in the dots so as to correctly reproduce the colortones of the original. The camera does this to a degree,but if the plates were etched direct from a negative print, 20 PRINTER AND PUBLISHER the results would be entirely disappointing. The errors ofthe camera—so to… … Tlie reduced dimensions of auy drawing or copy may bedetermined as illustrated above. In tlii* instance the copy isthree inches wide and a plate two and a half inches wide isrequired. To determine the height, stretch a string or lay astraight edge diagonally from D to E (see illustration.) Now…
Printing
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