United States or Bosnia and Herzegovina ? Vote for the TOP Country of the Week !
The effect will be quickly produced, in from three to fifteen seconds. Rinse and dry, as in the gilding. Bleaching Solution. Reduce with an equal quantity of water when used. When the linen or any other portion of the impression is badly solarized, after removing the coating, rinse with water; then pour this upon the surface in the same manner as the gilding solution.
Apply a gentle heat, and soon the spots disappear, leaving the impression clear and free from all organic matter. In the absence of cyanide of potassium, a solution of pure hyposulphite of soda will answer as a fair substitute. To Redeem, a Solarized Impression. The Daguerreotype plate, prepared in the ordinary manner, should be exposed in the camera a sufficient time to solarize the impression.
Other difficulties presented themselves seriously to the working of the discovery of Daguerre, to portrait taking one of which was the necessity for a constant and nearly horizontal light, that the shaded portions of the portrait should not be too hard, and yet, at the same time, be sufficiently well developed without the "high light" of the picture becoming overdone, solarized or destroyed.
Expose an impressioned plate, that has been sufficient time in the camera to become solarized, to the vapors of bromine, and the impression will be fully developed and exhibit no signs of solarization. The exposure over the bromine most be very brief. Chlorine or iodine will produce the same result. The latter is preferable.
Coloring Back Grounds Transparent ditto Gilding Dissolvent Solution for removing Specks Solarized Impression To Purify Water Cleaning Mercury Adhesive Paper Black Stain for Apparatus Sealing Wax for Bottles Rouge Rotten Stone Potassa Solution Hyposulphite Solution Substitute for do.
The result was that my first experiment produced an impression completely solarized in all its parts by an exposure of four seconds of time, which would have required an exposure of twenty seconds to produce a perfectly developed impression by the usual process. Another trial immediately produced one of the finest toned impressions I ever saw, perfectly developed in one second of time.
The manner of judging correctly of the time is by the appearance of impression after it has been developed by the mercurial vapors. Should it present a deep blue or black appearance it is solarized or over-timed. This sometimes is to an extent, that a perfect negative is formed, the white being represented black, and the dark light.
Place a plate which has been exposed in the camera over the vapor of iodine for a very brief period, and it will present the appearance of the impression having been solarized. b. Upon a Daguerreotype plate, from which an impression has been effaced by rubbing or otherwise, the picture may be made to reappear by merely coating it over with iodine. c.
If the solarization be very deep, apply the lamp beneath, and warm the plate a trifle. Now pour off, and, without rinsing, apply the gilding. The whole operation must be quickly performed, or the chlorine soon attacks the shades of the picture. When properly done, however, the solarized parts are restored to a clear, transparent white. Electro, or Cold Gilding.
The solarized portions also are very seldom blue, especially after gilding. If heated too high, however, the light parts become of a dead, chalky white, and the shadows are injured by numerous little globules of mercury deposited over them. Just the right quantity of mercury leaves the impression of a transparent, pearly white tone, which improves in the highest degree in gilding.
Word Of The Day