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The photographic news
- Bandzählung
- 13.1869
- Erscheinungsdatum
- 1869
- Sprache
- Englisch
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- F 135
- Vorlage
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- SLUB Dresden
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- Public Domain Mark 1.0
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- urn:nbn:de:bsz:14-db-id1780948042-186900000
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- http://digital.slub-dresden.de/id1780948042-18690000
- OAI
- oai:de:slub-dresden:db:id-1780948042-18690000
- Sammlungen
- LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
- Fotografie
- Bemerkung
- Heft 545 (S. 73-84), Heft 547 (S. 97-108), Heft 589 (S. 599-610) fehlen in der Vorlage. Paginierfehler: Auf Seite 444 folgt Seite 443
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Zeitschrift
The photographic news
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Band
Band 13.1869
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- Ausgabe No. 539, January 1, 1869 1
- Ausgabe No. 540, January 8, 1869 13
- Ausgabe No. 541, January 15, 1869 25
- Ausgabe No. 542, January 22, 1869 37
- Ausgabe No. 543, January 29, 1869 49
- Ausgabe No. 544, February 5, 1869 61
- Ausgabe No. 546, February 19, 1869 85
- Ausgabe No. 548, March 5, 1869 109
- Ausgabe No. 549, March 12, 1869 121
- Ausgabe No. 550, March 19, 1869 133
- Ausgabe No. 551, March 25, 1869 145
- Ausgabe No. 552, April 2, 1869 157
- Ausgabe No. 553, April 9, 1869 169
- Ausgabe No. 554, April 16, 1869 181
- Ausgabe No. 555, April 23, 1869 193
- Ausgabe No. 556, April 30, 1869 205
- Ausgabe No. 557, May 7, 1869 217
- Ausgabe No. 558, May 14, 1869 229
- Ausgabe No. 559, May 21, 1869 241
- Ausgabe No. 560, May 28, 1869 253
- Ausgabe No. 561, June 4, 1869 265
- Ausgabe No. 562, June 11, 1869 277
- Ausgabe No. 563, June 18, 1869 289
- Ausgabe No. 564, June 25, 1869 301
- Ausgabe No. 565, July 2, 1869 313
- Ausgabe No. 566, July 9, 1869 325
- Ausgabe No. 567, July 16, 1869 337
- Ausgabe No. 568, July 23, 1869 349
- Ausgabe No. 569, July 30, 1869 361
- Ausgabe No. 570, August 6, 1869 373
- Ausgabe No. 571, August 13, 1869 385
- Ausgabe No. 572, August 20, 1869 397
- Ausgabe No. 573, August 27, 1869 409
- Ausgabe No. 574, September 3, 1869 421
- Ausgabe No. 575, September 10, 1869 433
- Ausgabe No. 576, September 10, 1869 443
- Ausgabe No. 577, September 24, 1869 455
- Ausgabe No. 578, October 1, 1869 467
- Ausgabe No. 579, October 8, 1869 479
- Ausgabe No. 580, October 15, 1869 491
- Ausgabe No. 581, October 22, 1869 503
- Ausgabe No. 582, October 29, 1869 515
- Ausgabe No. 583, November 5, 1869 527
- Ausgabe No. 584, November 12, 1869 539
- Ausgabe No. 585, November 19, 1869 551
- Ausgabe No. 586, November 26, 1869 563
- Ausgabe No. 587, December 3, 1869 575
- Ausgabe No. 588, December 10, 1869 587
- Ausgabe No. 590, December 24, 1869 611
- Ausgabe No. 591, December 31, 1869 623
- Register Index To Volume XIII 629
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Band
Band 13.1869
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- The photographic news
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THE PHOTOGRAPHIC NEWS. 278 ANOTHER PERMANENT SENSITIVE ALBUMIN IZED PAPER. One of the most interesting, and, in some aspects, one of the most important, of the photographic movements of recent times, has been the effort to secure papers sensitive which might be kept ready for the printing-frame for months with out deterioration. Wo have already had the various modi fications which give to paper prepared with our own collodio- chloride process keeping qualities, the Leptogiaphic, the Obernetter, and other manufactures. We have also had the Carrier albuminized paper, and the carbonate of silver paper, each with its special claims to attention. Another prepara tion of this kind has recently been very modestly introduced to the public, which, from our present experiments, we are inclined to think will be found at least as valuable as any of its predecessors. We have, during the last few days, tried some experiments with “ Durand’s Rapid Sensitive Albuminized Paper,” a very unpretending announcement regarding which appears in our business columns. The results have been pre-eminently satisfactory. The extent of the keeping properties can, of course, only bo determined after the test of time, and we have not as yet had a sample to keep more than a week. Within that time, however, quite sufficient to turn ordinary sensitized albuminized paper hopelessly brown, no change whatever has taken place in the sample in our possession, the paper remaining perfectly pure and white. It prints in somewhat less time than ordinary albuminized paper, and, with good negatives, yields excellent prints, with more vigour than some other samples of albuminized paper, prepared for keeping, which we have seen. It assumes a warm, rosy tint in printing, whilst Carrier’s generally assumes a lavender tint, and does not yield so much vigour as Durand’s paper. The inventor recommends the acetate toning bath, and the examples we have seen toned with that bath are very excel lent ; but, in our experience, almost any bath will serve. We have tried the sulphocyanide bath, the bath with chloride of gold and a trace of carbonate of soda, and the bath with chloride of gold and carbonate of lime. All yield good results, but we prefer the last, which gives fine, rich, deep purple browns. Our experiments, as yet, have been necessarily limited, but, so far as we can judge, another valuable addition has been made to photographic facilities, useful to all, and pre-eminently useful to amateurs. We hope to report again, after further experiment, and after opportunity of testing keeping powers as well as printing qualities. MR. JOHNSON’S DEMONSTRATION OF THE CARBON PROCESS. The demonstration of the working of his new carbon printing manipulations given by Mr. Johnson at the Photographic Society on Tuesday night was in every way successful and satisfactory. With the small and complete equipment of tanks and dishes which we have before de scribed, he mounted, developed, and transferred a number of excellent pictures, without a hitch or failure of any kind, to the interest and delight of all the members, who eagerly gathered round to witness the beautifully simple and effi cient operations. The faculty which so distinguished Faraday as a lecturer, of accompanying efficient experiment by an easy running commentary of instructive remarks and explanations, so rarely met with, is possessed by Mr. Johnson in a pre eminent degree, and contributed on Tuesday night to invest the demonstration with much additional interest and actual value, the various little points of manipulation being made perfectly clear and simple to every one by the explanations which accompanied all the operations. We can only advert here to one or two of the most novel and valuable of the points in question. In floating the tissue on the bichro [June 11, 1869, mate solution—a plan infinitely better than immersion, as permitting the absorption of less solution, and therefore securing more rapid drying—he explained that the horny, curling character of the tissue sometimes made floating not quite so easy : the plan adopted, therefore, which secured perfect success, was to roll up the piece of tissue into a cylinder, prepared side outwards; the outer edge was then turned up for half an inch, which formed an even, flat termination to the sheet. This, being brought into contact with the surface of the solution and pushed along, the cylinder unrolled itself, and came gradually into contact with the bichromate bath, displacing the air, and ensuring the absence of air-bubbles. The tissue was left in contact with the solution for a period of from one to three minutes, the strength of the bath used being three per cent. This gave a satisfactory result, drying rapidly, and proving sensitive. The use of an instrument called a “ squeegee ” was next explained. Those of our readers who have spent any time on board a ship will have seen the sailors engaged in the morning in an operation styled “ swabbing the deck,” in which, after using a mop or “ swab ” and plenty of water to clean the deck, it is rapidly dried by the aid of a “ squeegee,” which is an elastic scraper with a handle. The edge of this scraper in contact with the deck drives all water before it, leaving it surface dry. Mr. Johnson’s “ squeegee ” is a tolerably rigid strip of india-rubber fixed in a handle. The exposed tissue having been immersed in water for a few seconds, until it begins to warp, prepared side outwards, is then placed in contact with the waxed or stearine coated glass, and the squeegee being drawn over it drives out all air-bubbles, and removes all superfluous moisture. After this, it is set aside for from five to ten minutes, and then immersed in the warm water for develop ment- as we have before described. An additional operation which Mr. Johnson described is worth mentioning. To give increased assurance of permanency, and check even the possibility of the in soluble gelatine present in the completed picture absorbing moisture, Mr. Johnson sometimes treats the undried deve loped image with a solution of shellac in ammonia. This, being absorbed by the still moist image,, renders it imper vious to moisture when dry. It serves, however, another end: the image so treated may at once be covered with the transfer paper without waiting for drying. A piece of moistened paper brought into contact with the image, and pressed down with a flat camel-hair brush, adheres per fectly, and, when dry, a waterproof as well as permanent print is lifted away without any trouble from the glass. We need not dwell on the other points of manipulation which were exhibited, but may conclude by remarking that we only echo the general voice we heard around us in describing this as a most successful and satisfactory demon stration of one of the most complete and elegant processes we have ever witnessed. MR. BLAIR’S PAMPHLET ON CARBON PROCESSES. We have just received the pamphlet on various inodes of carbon printing which Mr. Blair has published by sub scription. As might have been anticipated, it is full of the interesting and ingenious suggestions which a constant devo tion, in thought and experiment, to one subject for upwards of ten years has engendered in a mind of unusual intel ligence, especially fertile in resource and in inventive capacity. The pamphlet is chiefly devoted to novelties, although various suggestions occur which will be found of value in relation to existing processes. The primary aim is to describe various modes of obtaining carbon prints with half tone, without any transfer process. The first and simplest method described consists in a mode-of rendering the
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