Classified and illustrated price-list and catalogue of photographic lenses, cameras, apparatus, and materials : made, imported and sold wholesale and retail by James WQueen & Co . urning up the back, and then carefully lifting up the paper andexamining the print. Print much darker than you wish the finishedpicture to be, as much of the depth comes out in toning and the shadows are bronzed and the whites are slightly colored,remove the paper and put it in a dark box to keep. Print as manyproofs as you wish from the negative, and we are then ready for thenext operation. Toning the Pr
Classified and illustrated price-list and catalogue of photographic lenses, cameras, apparatus, and materials : made, imported and sold wholesale and retail by James WQueen & Co . urning up the back, and then carefully lifting up the paper andexamining the print. Print much darker than you wish the finishedpicture to be, as much of the depth comes out in toning and the shadows are bronzed and the whites are slightly colored,remove the paper and put it in a dark box to keep. Print as manyproofs as you wish from the negative, and we are then ready for thenext operation. Toning the Prints.—Take your fifteen grains of chloride ofgold and dissolve them in two ounces of water. Dissolve the twoounces of acetate of soda in a quart of water. Label each up your toning bath by taking half a pint of water and addingto it half a drachm of the gold solution and six drachms of theacetate of soda solution. Make this bath at least half a day beforeyou wish to use it. It works best when about a day old. It can beused repeatedly by adding gold and acetate of soda in the above pro-portions. When the bath is old enough for use, take the prints from their. PRINTING FRAME. James W. Queen & Co., Philadelphia. 11 dark box and place them, one at a time, face down, in clean remaining for a few minutes repeat the operation, and proceedto tone by placing them one by one in the toning bath and keepthem moving gently. See that they do not adhere to each at first assume a reddish tint, which changes gradually througha warm to a dark purple and finally to a gray. Watch them carefully,and when they are just entering the dark purple, before they reach thegray, remove them and place them in fresh water. The toning shouldbe done in a mild light in the daytime, as it is difficult to catch theproper tint by lamplight. In cold weather the bath may be warmedto shorten the work. Fixing.—Wash the prints gently in two waters, after comingfrom the toning bath,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectopticalinstruments
