The photographic news

• Bandzählung: 6.1862
• Erscheinungsdatum: 1862
• 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-id1780948042-186200003
• PURL: http://digital.slub-dresden.de/id1780948042-18620000
• OAI: oai:de:slub-dresden:db:id-1780948042-18620000
• Sammlungen: LDP: Historische Bestände der Hochschule für Grafik und Buchkunst Leipzig
• Sammlungen: Fotografie
• Bemerkung: Seite 1-72 fehlen in der Vorlage. Vorlagebedingter Textverlust.
• Strukturtyp: Band

• Digitalisat: SLUB Dresden
• Strukturtyp: Ausgabe

[July 11,1862 THE PHOTOGRAPHIC NEWS. 33G veloped ; the use of a weak pyro developer was found the b mode of meeting the difficulty. All the negatives were onz by 10 plates. The lenses used were a single RossandaGrt both of which we understand did their work very well. 7 Royal Highness the Prince of Wales manifested a deep inter®* we understand, in Mr. Bedford's success, making daily enun as to the result of operations, and making an occasional atW at some of the manipulations. His brother, the Princes Alfre™ we may here add, is an enthusiastic amateur, undertaking 20 department of the work himself, from cleaning the plates focussing the negative. Messrs. Day and Sons, as wo w before announced, will publish Mr. Bedford’s pictures. which, from its details of the process of instantaneous pho tography, met with a good reception. Its popularity on the other side of the Rhine has led to the publication of a French translation, which promises to be no less popular than its original. One more, and I have done. M. Ch. Bride, has published a volume entitled, L’Amateur Photographe. It is a sum mary account of all the leading elements of the photographic art, and if it fails to satisfy all enquiries, it will, at least, be found useful as an indicator of what the amateur may turn his attention to. Ualk in fire Studio. The Oldest Existing Photographs.—At a recent dinner of " The Photographic Club,” we had an opportunity of examining one of the most interesting mementoes of early photographic investigation and experiment. It consisted of a heliograph, in the possession of Mr. Joseph Ellis, of Brighton, whose name will be familiar to old photographers. Mr. Ellis gave some interesting details of the history of the picture, and of his possession of it. M. Nicephore Niepce, it may be re membered, had obtained permanent photographic pictures many years before the publication of Daguerre’s discovery, and in the year 1827 visited this country, in the vain hope of being able to obtain the attention of the Royal Society. It appeared that ho resided at Kew, and the picture in question had been given by him to his landlord at that time, in whose hand an inscription at the back is found to the following effect:—“This prototype [probably error for phototype] was presented to me at Kew, in the year 1827, by M. N. Niepce, the discoverer of the art.—-B. Cussell." Mr. Ellis had seen it in Mr. Cussell’s possession some years ago, and desired to obtain it. Mr. Cussell refused, however, to part with it, regarding it with almost superstitious regard and reverence. For the time, Mr. Ellis had to waive his desire, resolving, however, to keep his eye upon it. Ho recently learnt that the owner had died, and found, on enquiry, that his effects had been sold by auction. A little search discovered this picture in the hands of a broker, whose chief idea of its value was based on the notion that it was executed on silver. The back had been scratched to test it, and it is to the fact that the metal used was pewter and not one of the noble metals, that this interesting memento, probably one of the earliest sun pictures in existence, was saved from the melting pot. Mr. Ellis pur chased the picture, and preserves it with the care naturally pertaining to a picture possessing such historic value. It is a copy of an engraving produced in the camera by the action of light on a film of bitumen, on a pewter tablet. The size was about the ordinary half-plate ; the effect is in some respects similar to a Daguerreotype, the imago being vigorous and well defined. Wo may hero take occasion to refer the reader interested in the historic details of photography, which are somewhat scarce and scattered, to a couple of published lectures of Mr. Ellis, who, with considerable research, has carefully, and with much ability, traced the earliest known facts, evidently entering upon the task as a labour of lovo. Mr. Bedford’s Eastern Pictures.—We hope shortly to announce definitely the opening of an Exhibition of Mr. Francis Bedford’s Eastern Photographs, most probably in the German Gallery. After upwards of four months of very rapid travelling by every mode of transit, he has arrived at home in excellent health and spirits, with something like two hundred good negatives, having met with no more serious casualty than the smashing of his camera by an Arab to whom it was entrusted to carry up a rock. The bulk of the negatives were by the wet process. A stock of Dr. Hill Norris’s plates which were,taken, gave excellent negatives during the earlier part of the journey ; but some trying changes of temperature having rendered them doubtful, Mr. Bedford, not having time for experiment, confined himself in future to the wet process. The appliances for this, we are violating no confidence in stating, were a stock of Ponting’s collodion, and a stock of Thomas’s bromo-iodized, both of which were used with the pyrogallic acid development. The former was found very sensitive, but, owing to the very glaring light, solar ized very readily. The use of the bromo-iodized collodion ob viated this difficulty, and was found therefore most suitable for the work. Notwithstanding the great intensity of the light, a tole rably long exposure was generally necessary to bring out detail in the black shadows. The heat was found very trying, the plate not unfrequently being partially dry before it could be de Uo Uorrespondents. , Hypo.—The dark spots occurring in albumenized prints, is a ttnb. which most photographers of much experience have occasionally.mesde The cause is somewhat uncertain, but there is little doubt it is 1 ojd way due to the albumenized paper. It most frequently occurs tgee albumenized paper, and sometimes, we believe, with fresh, if thesh were stale. From its appearance, and the circumstances under "Alpe generally occurs, it is probably caused by some decomposition Itta albumen, probably causing some sulphur compound to be formed w' I contact with silver. The same cause may have produced the discolouje at the edge where the albumen is thick ; or that might have been Cinu by the fingers not having been free from other chemicals while mah ting during printing. The latter cause, especially if the fingersne touched hypo, is a common cause of such stains. 2. The milky apPeagd immediately after pouring the developer on the plate, is doubt,es gd to the use of common water, containing chlorides, carbonates, the silver on the plate being thus thrown down, of course robs and the image. 3. The proportion of hyposulphite of soda required forcj prints, is not a constant quantity, and cannot be stated definite-hte only will it be affected by the quantity of chloride of silver formed, paper in the first preparation, and by the presence or amount oa nitrate, but also by the character of the picture. A vignetted hejore instance, or a landscape with a large extent of white sky, will regunecaus hypo than a print containing a large proportion of black objects, DSjigbt in the latter case the bulk of the chloride of silver is reduced Dedb, whilst in the other case it is unaltered, and will require to be dissonced hypo. Mr. Hardwich says, under ordinary circumstances, an .but be hypo in six ounces of water should fix forty stereoscopic printsiinthe recommends for safety that only half that quantity should be fxe" solution, which should not be used again. nafef Tannin.—Negatives generally look a little denser before fixing and in some cases they do actually lose something in the course o* especially where organic matter enters into the composition of thtingtb) as in gelatine plates, such as you describe. The best mode of menctioti difficulty is to develop a little further, and thus allow for the rcductio moreover, a thoroughly well developed plate is less liable to this r jos j than one less developed. The hypo solution being weaker, or ® little acetic acid added, may also be tried. 2. Let the warm watsvill p" longer on the film to soak a little ; when thoroughly moistened, 1 dry so rapidly as to cause difficulty in covering with the developsbestf N.—A light background screen, but not a perfectly white one, 15-ief2 vignette heads. The transparency and atmosphere which givedob the head are lost, if there be no slight cloudy traces of backgrou n . e |^ the head, merging into the white beyond. A light drab or grey 15se colour to paint the background for such a purpose. Or, if thetdcl, placed well in advance, and the screen well in the shade, unbleas: dc answers admirably. 2. A sheet of iodized paper, and a film of iodl"etel dion are not quite analogous, the latter dessicating more comP-a being much less permeable to aqueous solutions after drying th: "ef, of paper. Nevertheless, a film of collodion may, as you suggest with proper precautions. Some of the many preservative process^ ga admirably where they have only to be kept a day or two ; honey, it b0 rine and honey, are good : but dust is the great drawback. / is", and tannin solution is just as easy to apply ; the manipulattojico°la simple, and the results very good. 3. A double thickness of stoutEtopl, head, projecting a few feet in front of the sitter, will not be too mus supl the head from toplight, especially if there be any chance of diremorels Amateur.—You require a white reflecting screen to throw a little the V"ga on the shadowed side of the face. The position is not bad ; but abkr three sprays of foliage against the background are destructive as they almost look as if they grew out of the head. A little 1° g sure is necessary. ofab"e X. Y. Z.—There are no means of efficiently cementing the halves othelo negative together. The best plan is, place them together on a orce of similar size, to which they may be attached by a little cementind dr balsam at the corners, so as to keep them together. Thenpritispe light. A slight mark will probably show ; but by adopting 1 the amount of evil will be reduced to a minimum. marpeki A.—Practically the cement described will be very similar to.iiyuse and that does not injure photographic solutions. We genera J t making dippers. HPr'O^X New Subscriber.—There were no prints enclosed in your 1 Uenized qat”, regarding them must be delayed until they arrive. 2. A1hun or in g t prints are best for colouring in oil. Isinglass dissolved in8lrepappa with a little alcohol subsequently added, answers bestforsughKedt surface. We cannot tell you the exact proportions ; for averweiglge t2 always prepared prints for oil colouring in this way, we net to n2jp ‘ proportions, but simply used our judgment. Take care n the pr solution too strong, and apply it two or three times, allow bommele P dry between each application. Then try one corner before u bpopj paint. We have, however, used gelatine without trouble on tbg0g bably used it too weak. 3. Nos. 188 and 192 contain arts Al"forv, and tannin process. The price of the PHOTOGRAPHICifyolardf one shilling. You omitted to send your name and addressiy be forppip’ these, together with the balance of stamps, the Almanac Wojvyout F G. Price.—Mr. Alfred Harman, the new secretary, will SuPP- you call on him as you suggest. Several Correspondents in our next.