The photographic news

• Bandzählung: 13.1869
• Erscheinungsdatum: 1869
• Sprache: Englisch
• Signatur: F 135
• Vorlage: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: Hochschule für Grafik und Buchkunst Leipzig
• Digitalisat: SLUB Dresden
• Rechtehinweis: Public Domain Mark 1.0
• URN: urn:nbn:de:bsz:14-db-id1780948042-186900000
• PURL: 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
• Sammlungen: 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
• Strukturtyp: Band

• Digitalisat: SLUB Dresden
• Strukturtyp: Ausgabe

THE PHOTOGRAPHIC NEWS. 214 [April 30, 1869. You may clean the glass, and take another person’s portrait on it. If the person, when he gets the dozen cartes, asks for the negative, you would naturally make answer to him, “ You have got all that was bargained for; if you had told me you would require the negative, I should have charged you very differently.” Negatives are kept in stock to save the person having to sit over again. If the public h id a right to the negatives, few photographers would desire to have the care and responsibility of keeping them, especially with a liability to an action for damages in case of accident to the negative. Therefore, I contend that what ownership there is lies with the photographer, and that if a sitter requires the negative, he must bargain for that as well as for the number of portraits he may want.—I am, sir, yours truly, W. G. PLEES. Bradford. [The case seems to be, and certainly should be, as simple as our correspondent states it; but the unfortunate fact exists that it has been disputed, the sitter claiming property in the negative as a right. We do not believe that such a right could be maintained at law; but although proceedings have been repeatedly threatened, some compromise has generally been arranged without proceeding to extremity and obtaining a legal decision.—Ed.] PHOTO-CRAYONS. Sir,—I have for many years been working in water colours, oil, and crayon, as well as in photography, espe cially collodion on glass positives and transparencies, and often combined photography and drawing figures in trans parencies on glass, backed by plain or tinted paper, land scape background, &c., but chiefly on white paper, coloured in water colour, or stumped in coloured crayons (my cus tomers being fond of colour) when tinted or plain paper was used. The hatching was added when the background in the negative was too light. I hatched on the papers, back ing with crayon when the negative had too dark a back ground. I hatched the negative for printing either on paper or glass, and applied this last method even to C.D.V. I enclose a specimen print. Another way I treated trans parencies was to coat them with albumen, then colour them with liquid colours, hatching with blue or otherwise, and transfer the film to white paper : the colours become much brighter, and the surface very glossy, &c. Now, sir, I am not one of those who are ready to dispute Mr. Sarony's patent. I fully agree with you, sir, that he has conferred a boon on photographers, and shall be happy to purchase his designs if I find they can be adapted to various positions, &c. I have worked extensively in chalk on stone, but it never struck me that such designs could be adapted to different heads until I heard of his plan. I believe he is entitled to protection. But, although I do not wish to dispute his claim, nor wish to inform the public that I have combined transparencies and crayons the same way before him, I should not like to be told by him that I must not do what I used to do, although I never published my way, on account of the opposition in the profession here. The work I have been doing will prove it. Hypo. PS.—You have been asked whether the rapid rectilinear lens is rapid enough for cabinets. It is as rapid as half plate portrait lenses used for that purpose, since they must be stopped down, whilst this need not. PRACTICAL NOTES AND QUERIES. Sir,— Will you, or some of your correspondents, give a little consideration to the following notes and queries : — Strong and Weak Developers.—If a saturated solution of protosulphate of iron will produce a good picture, aud a 5-grain the same, what is it that will give the developer the par excellence I I have used for several years only one additional ingredient, namely, acid. Now, I do not think we correctly understand that article as we should. What we should know is the equality of one acid to another; for instance, there is nitric, sulphuric, acetic, glacial acetic, tartaric, lactic, citric, hydrochloric, and formic, all retarding agents. Have these all been duly tested, and their effects recorded ? One assistant I had, used 8 ounces of glacial acetic acid to 40 ounces of protosulphate of iron, 30-grain solution, but could not explain why ; another used 1 ounce to the same quantity; and both produced the same quality of picture. Now, if the small quantity produced equal, the other must be so much waste. Advantages of Dating Collodion.—Last summer, whilst travelling, I purchased at a chemist’s a pound-bottle of collodion; it proved to be very good. Since then I have obtained some more the same date, quite equal to the pre vious sample. Is albuminized paper good or bad according to the season in which it is prepared I—I am informed that the paper albuminized when eggs are plentiful, the spring, is superior to any other prepared at other times of the year. If this is so, now is the time to buy your stock. X. Y. Z, HYPO FOR FIXING. Dear Sir,—Seeing that you request further experience on the subject of fixing with hyposulphite of soda, I beg leave to state that, having some thousands of negatives, all of which have been fixed with hypo, ranging over a period of fourteen years, I have not one plate that is cracked. I have always been careful to finish the washing of negatives with water as warm as I could comfortably bear the heat to my hands.—Yours truly, J. Stokes. 28, Grey Friars Road, St. Peter's, Ipswich, April 22, 1809. MANIPULATING CAMERA.—ALCOHOLIC AMMONIA-NIRATE BAl'H. Dear Sir,—Your favourable notice of my camera in the last number of the News induces me again to offer to show and explain the apparatus to any photographer or manu facturer who will call at my office, No. 81, Mark Lano (by appointment), in the middle of the day. We all, no doubt, think our own child the best; I certainly cannot discover any advantage over my apparatus in any that has yet come under my notice. I have no doubt your Yorkshire corre spondent could work with the apparatus he describes, but, to me, it has the same defects as the camera invented many years since by Mr. Newton, the optician in Fleet Street, with which this is almost identical. It is difficult to know what is really new, but I am in clined to think that a “dark chamber” similar to mine was new at the time I made it; and I think it is a simple and efficient method of preserving the negative from light during the manipulation. The baths, too, being used separate from the camera, is, in my opinion, an advantage.—I remain, dear sir, yours truly, Thomas BAnRErr. PS.—Have any of your correspondents tried the sensi tizing bath tor paper that I sent to the News many years ago? I think it is described in the first volume. It is ammonia-nitrate of silver in alcohol—very sensitive, though only of the strength of 10 grains to the ounce. I think I can describe it from memory : put 80 grains silver into 1 ounce of water, and, when dissolved, pour in ammonia until it becomes clear again ; then add 7 ounces alcohol. This can be used to the last drop. T. B. Mead Vale, Red Hill, April 2G, 1869. [The ammonia-nitrate bath for albuminized paper, some what similar to that described by our correspondent, has not been used to our knowledge. A modified form of it has been used in the United States, but comparatively little in this country. We know that it gives admirable results, and very sensitive paper. We commend the courteous offer of our correspondent in regard to his manipulating camera, to those of our readers who can avail themselves of it.—Ed.]