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The photographic news
- Bandzählung
- 7.1863
- Erscheinungsdatum
- 1863
- Sprache
- Englisch
- Signatur
- F 135
- Vorlage
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- Hochschule für Grafik und Buchkunst Leipzig
- Digitalisat
- SLUB Dresden
- Lizenz-/Rechtehinweis
- Public Domain Mark 1.0
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- urn:nbn:de:bsz:14-db-id1780948042-186300004
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- http://digital.slub-dresden.de/id1780948042-18630000
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- oai:de:slub-dresden:db:id-1780948042-18630000
- Sammlungen
- Fotografie
- LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
- Strukturtyp
- Band
- Parlamentsperiode
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- Wahlperiode
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- Bandzählung
- No. 276, December 18, 1863
- Digitalisat
- SLUB Dresden
- Strukturtyp
- Ausgabe
- Parlamentsperiode
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- Wahlperiode
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Zeitschrift
The photographic news
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Band 7.1863
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- Register Index 619
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Band
Band 7.1863
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- Titel
- The photographic news
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Aroceedmgs Of Societies. South London Photographic Society. The usual monthly meeting was held on the evening of Thurs day, December 10th; Mr. Sebastian Davis in the chair. The minutes of a previous meeting were read and confirmed, and the following gentlemen were elected members of the Society:—Messrs. Aldis, W. B. Parker, Collis, Walmsley, Everett, and F. Yorke. Mr. Ross sent for exhibition two very fine portraits, by Messrs. Southwell Brothers, of the size they have termed “ imperial.” The portraits were those of Miss Kate Terry, and Mr. Fechter, as Hamlet. The background and accessories illustrated the value of a skilful combination of real objects with scenic effects. The lens was one of Mr. Ross’s portrait combinations of six inches diameter, 24 inches back solar focus, and was used with a three-inch aperture, the exposure being about one minute in a good light. Mr. Ross also sent some interiors of the Crystal Palace taken with his No. 2 triplet of 9 inches equivalent focus; the stop used was the 4-tenths of an inch in diameter. Mr. Hy. Cooper, jun., exhibited some very charming card and other pictures, chiefly artistic studies, with fine effects of double printing. The cards were described as produced by Dallmeyer’s stereo lens, and the larger pictures with the No. 1 triple of the same maker. Mr. Wharton Simpson exhibited two card pictures by Mr. Pouncy, produced by his printing-ink process. The Chairman called especial attention to the successful results obtained in the face of all the difficulties involved, and the pictures were generally admired. Mr Aldis exhibited some enlarged pictures produced with the solar camera and the oxyhydrogen light, which excited much attention. After a vote of thanks to the gentlemen exhibiting specimens, Mr. Wall read a brief contribution from Mr. Walter Wood bury, well known for his fine photographs of Java, whose description of photography in that island will be remembered by our readers. ' He described a process of printing a picture from two negatives as follows : Suppose it is required to introduce portions of two negatives into one picture, two sheets of talc are produced the size of the negatives, and on each arc painted in Indian ink the part re quired from each negative. These are used similarly to the paper screens generally employed to shield the paper in double printing, but possess the following advantages. They can bo cleaned and used over and over again, and can bo placed exactly over the corresponding part in the paper, thereby giving no white line, and do not contract or expand as the paper shield often does. Where it is required to cover some delicate part, such as a lock of hair, lace, or anything that it would be impossible to cut out evenly on paper, there is no difficulty in painting out such part on the talc. Another method of using it is thisSuppose you have a portrait to which you wish to introduce a background from another negative. You first block out all the background of the negative, and having prepared the sheet of talc as a dry plate, you take on it a print from the blackened negative, which by over-exposing gives you a shield the exact counterpart of the blackened negative. Owing to the thinness of the talc no diminution in sharpness takes place. Regarding Mr. Warner’s suggestion for a camera for India, from my long experience there I should think it would not answer, as the slightest moisture inside the camera would keep the lens in a continual steam. Nothing answers like a piece of black velvet thoroughly damped and laid over the camera, as the rapid evaporation keeps the plate cool and moist for a considerable time. With the thermometer over 95° I have often kept a plate wot for ten minutes. Mr. Wall then read a paper by Mr. Parker on “ Glass Rooms and Lighting” (see p. 606). The Chairman, in inviting discussion, expressed his admi ration of the glass-room and management of light of Mr. Williams, in Regent Street. Ho thought the square shape ami largo size, 30 feet each way, was of great advantage in permitting the sitter to be placed in any desired position, thus meeting the important question of the aspect of the light. Ho had his own little glass room, and had tried placing it in all directions. In reference to the question of aspect, the part of the day in which it was most likely to be used was an important consideration. For instance, with a south aspect it would be almost impossible to work between the hours of eleven and one. For professional photographers requiring to work during the whole day, a northern aspect was undoubtedly best, and the light reaching the sitter at an angle of from 45° to 60°. He recommended persons interested in this question to experiment with a white bust, by which the actual effect of lighting would be most easily seen. With a direct front light only it would be seen to be quite flat, but with a light reaching it at a suitable angle the whole would be seen in perfect relief. Perhaps before pro ceeding to the discussion, it might be convenient if Mr. Wall read his remarks on the same subject. Mr. Wall then read a paper on “ Glass Rooms ” (see p. 607). Referring to a direct south light, he said Mr. Rejlander could work with the sun direct on his model, but in that case it was received through the blinds, which were pulled down. Mr. Simpson, referring to Mr. Parker’s remark that the subject of glass houses had received so little attention in society meetings,) observed that probably one reason why the subject before the meeting was so little discussed was that it was so difficult to treat in the abstract. He was much struck with the truth of this opinion by the paper of Mr. Parker, read that evening, in which that gentleman, referring to the recent alterations in the glass house of Mr. Williams, said that they produced a principal front light, while Mr. Williams’s object had been to avoid this, and obtain a high side light, or what painters call “ a side front.” In reference to the sun’s direct rays, which could scarcely be avoided with a southern aspect, he might remind the members that Mr. McLachlan had patented an arrangement of blinds with the express purpose of working with a southern aspect. From the description published it was not very easy to under stand the exact nature of the contrivance proposed. He, how ever, recently had an opportunity of talking over the subject with Mr. Mayall, who had. seen the arrangement in operation in Manchester. This gentleman had been so much pleased with them that he ordered them to be adapted to his new glass room in course of erection at Brighton. To use Mr. Mayall’s expression, the light was so arranged as to act as an “ artificial cloud,” and in whatever position the sitter was placed, an intense reflected light might be thrown on him. A southern light, when it could be used, was of course very valuable from its power. Mr. Wall had tried Mr. McLachlan’s plan, and was much dissatisfied with it. All portions of the blind gave off reflected light at different angles, and the image on the ground glass was deficient in clearness and had a woolly appearance. He had hoped to obtain cast shadows by direct light; but the arrangement so altered the light that he got no shadows. He believed, however, that Mr. McLachlan’s room was loftier than his, and in a better locality, and these points would have to be borne in mind. Mr. Simpson asked if Mr. Wall really used Mr. McLachlan’s arrangement of blinds? or, whether he had only carried out his instructions as well as he could from the descriptions ? Mr. Wall had not had his blinds from Mr. McLachlan, but had endeavoured to carry out the idea himself. Mr. Simpson said that was doubtless the source of the error. Probably Mr. Wall had as much misconceived the real arrange ment as he (Mr. Simpson) had done. He had objected to Mr. Mayall that the arrangement struck him as calculated to give a series of small lights instead of one volume of light. Mr. Mayall had assured him of his error, and stated that the results were the finest in point of lighting that he had ever seen. He had heard of others making sets of blinds on what they believed to be Mr. McLachlan’s plan, and abandoning them; but Jie conceived that in these instances they had failed in getting the effect of the genuine arrangement. After some further conversation on the subject— Mr. Simpson said he was unable to explain the precise arrangement. So far as he understood it, there was a series of narrow strips of wood, hung at right angles to the glass roof, which was placed at an angle of 45°. These were con nected, and could be adjusted so as to stand at any position. There was one very important point to be remembered in con nection with this subject. However perfect the glass house and arrangements for lighting, they would be of little service to persons who had not an intelligent appreciation of the principles upon which the model should be lighted, and a per-
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