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

ni 1862. the photographic news Vol. VI. No. 198.—June 20, 1862. hat principle be new or old, is now, since the patent has ceased to exist, a question of very . The picture is abou enlarged from a card negative a rinciple the ; nor can it cal actid he mers whateret can add that they bear every appearance of being so. M. Gh6mar’s pictures are not developed, but “ printed out” by the sun, an exposure of three or four hours being neces sary. . With results like these before us, notwithstanding the force of theoretical objections, we are satisfied that very perfect results are to be obtained by means of the solar camera. There may be theoretically, and to some extent practically, dispersion and diffraction of light, and diffusion or confusion of the image ; but if these evils are practically found in such a minimized degree as to be, in good work, imperceptible, photographers may well afford to disregard them ; and even if the results were such as served only the purpose of the artist to work in pastels or oil colours, we should still regard the solar camera as a most important aid to the photographer. It may be urged, we know, that there is no evidence that many of the Continental photographers use the solar camera. On this subject, however, we have evidence that the ma jority of the Continental photographers do use the solar camera, or some modification of it. M. Ghemar states that he does so, and so do many of the French artists. A very fine enlargement of a portrait of Mr. Negretti, little importance. That the solar camera is in p: same as the solar microscope, cannot be denied; MODES OF ENLARGING PHOTOGRAPHS. A AHALLEXGE given and accepted, is at any time certain to excite a certain amount of interest, especially if some impor- question is to be settled by the encounter. We have no doubt that many of our readers looked with considerable interest for the issue of the friendly contest between Mr. lemon Heath and M. Claudet, to decide the merits of the modes..of enlargement which they had respectively adopted, he little affair “came off,” however, as our readers are nare, without materially altering the question, or bringing •wut any decision. M. Claudet and Mr. Heath each produced Try excellent specimens of their methods, which were gene- aly admired: some commended those of M. Claudet be ¬ that the solar microscope was long ago applied to photo graphic purposes. To Mr. Woodward is due at least the credit of a revival, and also of an extended application of the principle. Practically he brought to bear upon enlarging processes a method of using the maximum of light with the minimum of aperture, and directed that the aperture, or what is equivalent, the focus of the condenser, should be at that point which secures the greatest flatness of field, namely, in contact with the front lens. Having admitted to the solar camera, however, all which can be claimed for it, the position Mr. Heath assumed before the Photographic Society at the meeting in May, is in no wise altered or destroyed. If the solar camera were more perfect even than it is, and all its perfections universally admitted, there cannot be a question that for the greater part of the year in this country, it must be entirely idle; direct sunshine is imperative ; the idea of using a reflector and condenser in diffused light is simply useless. Even in Paris, where sunshine is a little more plentiful and constant than in this country, it is not sufficiently plentiful and constant; as M. Disderi, we understand, has founded an establishment in Algeria for using the solai camera, whither he sends all his negatives, from which amplified prints arc required. But even if the instrument were admitted per fect, and the light unquestionably always sufficient, it is not every photographer, especially every amateur, who possesses or would care to possess, a solar camera, and devote a room entirely to its use. Mr. Heath, then, had given considerable attention to the improvement of a method long known, but little practised, whereby enlargements, not simply of the single prints, but of the negative, could be produced by a trifling addition to the appliances already in the possession of every photographer. That the enlargement was the result of two operations, was a small objection, seeing that, as wc have remarked, when produced it was a negative, from which J judg expose ontind2ev icals. 5 rigba nt e“ c aaybe% se 4 s (he 30 stop ina,250 >r>,X %, r ans ", M X nige5 ;j0‘ 46 . p solr250g; ded"* Ulse they were developed prints on plain paper, and were M and round ; others admired those of Mr. Heath because "tey were on albumenized paper, and were sharp and vigor- °8; but no general decision was, or indeed could, be made. The truth is, that the question in the form it finally ’sained, never ought to have existed. As Mr. Heath stated, he never intended to put the case in such a form ; by tome misconception, however, it drifted into the position of ordinary camera enlargement versus solar camera enlarge- ent, and ended by deciding nothing. The important question for photographers is not so much which of these Methods is best, but are either or both good, or at least suf ficiently good to be worth practising ? Our own conviction often expressed is, that for certain purposes, and within given limits, they both are good and useful; and each is best in turn as circumstances may vary. That very excellent photographs can be produced by Teans of the solar camera there is not room for question, let those who have the slightest doubt on the subject visit fie Exhibition at South Kensington, and examine the vari- 1098 enlarged specimens exhibited, the examples in the “ritish department, even despite the very occasional willing- 1e8s of the sun to lend his direct countenance to photo- Eraphy on such a scale. If any doubt exist after seeing Dse specimens, then proceed to the various foreign depart- CAts, inspect those of Disderi and others in the French 8,3$ of Albert in the Bavarian Court, of Hansen in the "Btish Court, or of Ghemar in the Belgian Court. The ^■especially : we have no hesitation in pronouncing the n length portrait of the Compte de Flandres the most RTlect enlargement in the exhibition, and as little short of paction as a photograph. The picture is about three feet i.W, the figure, which is " J "u Uc over two feet high. Every part of the picture appears ”, be in perfect focus; head, feet, and hands; carpet, cur- . ln 8, and accessories ; everything is well and delicately de- rned. The picture is, moreover, at once soft and forcible, c alike from the insipid feeble greyness, ortho hard black- is which characterizes some enlargements. To say that it “ absolutely untouched is more than we can venture upon ; b. wc cannot perceive any touching; and we are assured M Afriend, who had an opportunity of inspecting a copy in of 31 mar 8 studio, that the touching is confined to the spot Bizht on the e y es , and the decorations of gold, silver, and so' rgnts 011 the breast: objects like these, reflecting light Bvi dy from every facet, on the slightest movement caused k 18 heaving of the chest, become, as every photographer now8, blurred in the negative, and their need of touching in men! Pet racts from the merits of the solar camera enlarge- at 1 ’ the flesh, hair, draperies, furniture, &c., arc all, wc sured, pure photography, and quite untouched. Wc e than thr of the chl everalwas . face is f j tint. T has caus" lepth, as 2 not see® 15 i be used me remP° trained mes bec0. be easilt f potassi. Icohol to J lows evel opears, ith distil, f thep o as to d"" held b! stains W• Ie from J. coPPCe einaPae being Pa efsm^ allexcega f silver,’ the coPP of silrd sersdr” >e Lil has e oftice 2 ricke” Jl iembe, * I ily I Koa<l. ! I fiash” I 1swilST tuite" I produced in Italy by an artist who is stated never to have seen a solar camera, turns out, however, on a description of the appliances to have been produced exactly on the solar camera principle. Whether that principle be new or old, is