The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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black-and-white objects; (b) copying photographs; (c) copying coloured objects, like oil-paintmgs, missals, etc.
(a) Copying Black-and-White Work, such as Engravings, Line-Drawings, etc. For the professional worker wet collodion undoubtedly still holds its own in this branch; but for the amateur, or when only one or two subjects have to be copied, dry plates may be used with satisfactory results. In copying a black-and-white object we want no gradation, no half-tones, no shadows; merely black and white. Should the paper show a grain it is necessary to light the subject in such a manner that no sign of
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this grain is visible, which can usually be effected by a full front lighting, and by even, all-round illumination as is obtained out of doors. Frequently it is necessary to use some support to retain the page of a book or print flat; this support may be either a piece of stout wood placed behind the leaf or print, which can then be held in position by a couple of stout india-rubber rings, if the print to be copied cannot be pinned flat by the aid of drawing-pins. A capital copying-stand, suggested by the " Ker-nel," the author of " Photography in a Nutshell," is shown in %• 37- This is so obvious that we need hardly explain its