. Elementary and dental radiography . eveloper to make my prints. Lately 1 have used, with a moderate degree of satisfaction, a sunlightphotographic paper made by the Eastman Kodak Company and sold underthe trade names of Solio ami Kresko. Unlike the photographicpapers thus far described, this paper is not affected, except alter pro- MAKING DENTAL RADIOGRAPHS 105 longed exposure, by ordinary daylight. So the room in which it is usedneed be neither dark nor semi-dark. The exposure must be made to sunlight, and, for the average cellu-loid, dental negative is about one hour long. At the end of th
. Elementary and dental radiography . eveloper to make my prints. Lately 1 have used, with a moderate degree of satisfaction, a sunlightphotographic paper made by the Eastman Kodak Company and sold underthe trade names of Solio ami Kresko. Unlike the photographicpapers thus far described, this paper is not affected, except alter pro- MAKING DENTAL RADIOGRAPHS 105 longed exposure, by ordinary daylight. So the room in which it is usedneed be neither dark nor semi-dark. The exposure must be made to sunlight, and, for the average cellu-loid, dental negative is about one hour long. At the end of this time thepicture is printed. It can be seen, and needs no developing to bring it outas other photographic papers do. At this stage the picture looks like andin fact is a proof, the like of which photographers submit to theirpatrons. It will fade or, to speak more accurately, become dark andso blot out the picture, as all proofs do, unless the unacted-upon silversalt is dissolved out. This may be accomplished and the print made per-. Fig. 95. A roller. manent by placing it in an ordinary fixing solution for about eight min-utes. Then it is transferred to running water and washed for about anhour. Instead of using the ordinary fixing bath much better results may beobtained by placing the print in Solio Toning Solution, a preparationmade by the Eastman Kodak Company. This solution not only fixes theprint by dissolving the unacted-upon silver salt, but, because it containsgold chloride, changes the color from a reddish-brown to a rich choco-late, and so makes a better-looking print. A printing frame the back of which is in two pieces joined with ahinge (Fig. jj) is necessary for this work. By releasing only part of theback and raising it on its hinges, we may look at the print from timeto time in the course of its development, without altering the relativepositions of the negative and paper. The greatest disadvantage in using this paper lies in the fact that wemust have sunlight
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcet, bookyear1913
