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The photographic news
- Bandzählung
- 35.1891
- Erscheinungsdatum
- 1891
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- Hochschule für Grafik und Buchkunst Leipzig
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- Hochschule für Grafik und Buchkunst Leipzig
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- Bandzählung
- No. 1724, September 18, 1891
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The photographic news
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QDatent IEntellgence. Applications for Letters Patent. 15,181. Rose Mary Shawcross, 15, Water Street, Liverpool, “ Improvements in or Connected with Sensitised Surfaced Paper, Woven or Tissue Fabrics, or other Material for the Production of Copies of Drawings, Designs, Pictures, Photo graphs, Writings, and the like, by the Action of Light.”— September 3th. 15,282. Edgar Clifton, 108, Regent Street, London, “Im provements in Apparatus for Producing Enlarged Copies of Photographs. ”—Sept ember 9 th. 15,334. Charles Ruby Neve, 37, Chancery Lane, London, “Improvements in Photographic Cameras.”—September 9th. 15,434. Julius HAUFF, 166, Fleet Street, London, “The Preparation and Employment of Aromatic Amido-Compounds as Developing Means in Photography.”—September 11th. Specifleations Published. 5,742. April 16th, 1890.—“ Developing Apparatus.” E. Fair weather, 218, Devonshire Road, Forest Hill, Kent. Developing is performed in a vessel provided with a non- actinic transparent top and bottom, so that the development can be performed and its progress observed in white light. The top and bottom may be also fitted with opaque covers. The solutions are admitted through covered funnels, and are discharged through a pipe. The apparatus is rocked by a pendulum. Corresponente. THE “ACME” CAMERA—A WARNING. Sir,—We have to-day had sent to us by a gentleman a camera which he had bought as one of our patent “ Acmes,” but from which the name-plate had been lost, asking us to put in a new tablet; but, although the camera is an exact copy of ours in every respect, it is not of our make, and is of decidedly inferior workmanship to what we supply.' We therefore wish to warn the public against purchasing such cameras, and to state that we shall be pleased to verify for anybody a camera that they may have bought described as of our manufacture, while we shall be much obliged for any information which may help us to discover who is making these cameras, so shat we may take such measures as the law allows to protect both our selves and the public. Perhaps you will be good enough to publish this letter in your journal. W. Watson and Sons. 313, High HoUnrn, London, W.C., Sept. 15th. roreeings of Soctettes. Holborn Camera Club. September IDA.—Mr. T. 0. Dear in the chair. Mr. John Howson gave a lecture on the “Ilford Printing out Paper ” (gelatino-chloride). After dilating on the commer cial questions connected with the paper, Mr. Howson said two toning baths were recommended ; the first consisted of— Water ... ... ... ... ... is ounces Sulphocyanide of ammonium ... ... 75 grains Chloride of gold • 2} ,, The second, a combined toning and fixing bath, was as follows :— Water ... ... ... ... ... 20 ounces Hypo 5 ,, Citric acid ... ... ... ... 60 grains Acetate of lead ... ... 60 „ Sulphocyanide of ammonium ... ...240 ,, Chloride of gold ... ... ... 3 ,, The mode of working and final operations were similar to those of the gelatino-chloride papers now on the market. With regard to the use of an alum bath, he thought the special nature of the gelatine used rendered it, in most cases, un necessary. Mr. Howson then toned some prints on the new paper, which, together with a number of finished prints, showed its advantages. On Saturday fourteen members and friends attended the Keston outing. National Association of Professional Photographers. A meeting of the Council was held on the 8th inst. in the Pillar Room, Anderton’s Hotel, Fleet Street, London. The following members were present:—Messrs. H. J. Whitlock (President), John E. Shaw and Robert Slingsby (Vice-Presi dents), Barry, Fall, Elliott, Warwick, Brookes, Maclver, Eddison, Roxby (Treasurer), and C. P. Richards (Hon. Secretary). Mr. Whitlock alluded to the growth of the Association, and the absolute necessity of engaging the services of a paid secre tary, at the same time paying a high compliment to the hon. secretary for his able services. A sub-committee was appointed with power to interview and engage a gentleman for the position. A discussion took place upon the important question of trade price lists, and a course of action was agreed upon. Reports from the various branches were received of a very encouraging character, and the Council generally expressed every confidence in the great future of the Association, and its power to remedy many anomalies now existing. North Middlesex Photographic Society. September Uth.—Mr. J. Stewart in the chair. Mr. J. Howson demonstrated the working of “ Alpha ” paper, and passed round a number of prints. In his preliminary remarks, Mr. Howson pointed out that an amateur frequently had little time for daylight printing. This process would enable him to obtain warm tones when they would otherwise be impracticable. The points to be observed were to follow the instructions closely, and to expose always for the same time at the same distance from a uniform light when uniform results were desired. Six inches from a batswing burner was the distance recommended for a small negative. A greater distance would be necessary with a large negative to equalise the light. From two to three minutes would be necessary for a moderately dense negative. To obtain brilliant prints from a weak, flat negative, develop deeply with half old and half new developer, and allow to remain in the clearing bath till the high-lights were sufficiently reduced. The red tones obtained by prolonged exposure would be retained after fixation, even if the prints were not toned, but slight toning was generally desirable even for the warmest tones. It should be borne in mind that if the tones obtained were too -warm, the prints could be toned to colder shade, even after they had been dried and stored for any length of time. Mr. Howson then developed and toned a number of prints showing the range of colours obtainable from equal exposures and development. Many questions were asked and satisfactorily answered. Cloud printing by combination was doubtless difficult by reason of the difficulty of differentiating the exposure to the two negatives to obtain identical tones. A Member was of opinion that this would be overcome by making trial exposures. The usual competition of prints of views at the Society’s field-days was held. Mr. Marchant received the vote of merit for Roydon, Mr. Gregory for Loughton, Mr. Staveley for Edgware, and the Secretary for Kew. An ingeniously made shutter sold by Messrs. Perken, Son, and Rayment was shown, and prints on mat-surface paper by Obernetter. A very rough-surface paper by the Blackfriars Sensitising Co. was much liked. Mr. H. Smith reported that he had found Mr. Barry’s printing meter invaluable in printing-in clouds in platinotype. Mr. Taylor showed prints from the negatives he made when demonstrating development at the last meeting, making clear the points he had dwelt upon in his address. Two reversed negatives (snap shots with a medium stop) were shown by a member. As the conditions under which they were taken precluded the possibility of supplement ary exposure, and as the edges of the plates were plainly
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