. The book of photography; practical, theoretical and applied. Fig. 28o.~ with Oentkal Spring. printed, and the remainder masked fromextraneous light. The back is not hingedin the middle, but more to one side, sothat a fairly full view of the picture canbe obtained on opening it for examination. Print Indicators. While dealing with printing frames,mention must be made of the print indi-cator. This is a littLe apparatus like aclock dial, numbered from one to twelve,and provided with a pointer which gripsinto slots (see Fig. 286), and is set oppositeto the number of prints made ; by f^-et
. The book of photography; practical, theoretical and applied. Fig. 28o.~ with Oentkal Spring. printed, and the remainder masked fromextraneous light. The back is not hingedin the middle, but more to one side, sothat a fairly full view of the picture canbe obtained on opening it for examination. Print Indicators. While dealing with printing frames,mention must be made of the print indi-cator. This is a littLe apparatus like aclock dial, numbered from one to twelve,and provided with a pointer which gripsinto slots (see Fig. 286), and is set oppositeto the number of prints made ; by f^-ettingthe pointer to a fresh number on the 18^ THE BOOK OF PHOTOGRAPHY. completion of each print, waste from ovei-printing is avoided. The&p cost Is. perdozen. sheet of clean glass in front to protect thenegative and any working up on the glassside. Rubber backing is advisable Fig. 284.—Frame with Hingkd-on Back. Printing Sheds. The photographer who has to completework in a given time must be independent,as far as possible, of the weather. Of thelight he carnot be altogether independent,although something may be done in thedevelopment of print-out papers, as x^illbe Ssen when that part of the subject isdealt with. He must therefore be pro-vided with a printing shed. This consists
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphotography, bookyear
