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The photographic news
- Bandzählung
- 11.1867
- Erscheinungsdatum
- 1867
- 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
- URN
- urn:nbn:de:bsz:14-db-id1780948042-186700008
- PURL
- http://digital.slub-dresden.de/id1780948042-18670000
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- oai:de:slub-dresden:db:id-1780948042-18670000
- 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. 435, January 4, 1867
- Digitalisat
- SLUB Dresden
- Strukturtyp
- Ausgabe
- Parlamentsperiode
- -
- Wahlperiode
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Zeitschrift
The photographic news
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Band
Band 11.1867
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- Titelblatt Titelblatt I
- Sonstiges Preface III
- Ausgabe Ausgabe 1
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- Ausgabe Ausgabe 617
- Register Index 623
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Band
Band 11.1867
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- Titel
- The photographic news
- Autor
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much weight. I said that I did not see how a patent for such a method of colouring could he maintained, simply because so many analogous methods have been already both patented and published. The name of methods of colouring at the back of a transparent photograph is legion. Various methods of colouring photographs by means of chromo-lithography have been patented. Mr. Fry states that he has extensively practised something similar. A little more than twelve months ago Mr. Pettit patented a method of backing transparent positives so as to make them form coloured pictures by reflected light. As the photo-relievo prints are, strictly speaking, trans parent positives, and as the method of colouring them is intended to make them form pictures by reflected light, there is certainly something very similar in the two things, but whether any of these things constitute a barrier to a patent would require a person more versed in patent laws than myself to decide. I certainly should not recommend any one to infringe the patent, unless he is anxious to spend time and money in raising curious points of law. Further, I may add my conviction that if a process be good and useful, it is altogether better for the public that it should be protected by patent. That which belongs to everybody is like a piece of common land which is cultivated by nobody. Almost every invention is better for being the sole property of somebody who has an interest in perfecting and working but its fullest capabilities, of which the public, as well as the patentee, finally receive the benefit. I believe this of the method of colouring in question ; whatever good it possesses will be better worked out under a patent than it would be as everybody’s property, which no one woald think worth spending capital to develop. Mr. Woodbury’s examples of micro-photo-sculpture are exceedingly charming and wonderful; if the ground of the relief were in a tint—and I suppose it would not be diffi cult to effect this—the cameo effect would be perfect. Of course such reliefs can only be obtained from objects which can be photographed by means of transmitted light, or from objects without colour. Mr. Winstanley has, I under stand, patented a method of producing portrait bas-reliefs by photography. Such a result will be very interesting, and the process must be ingenious. The difficulty at first glance appears insuperable, inasmuch as in the known relievo processes, light being represented by relief, and dark by depression, it seems to follow that the eye brows, hair, beard, whiskers, &c., in a face form hollows instead of prominences in the photo-bas relief. I shall look with much interest for the details of Mr. Winstanley’s method. The difficulty of photographers in relation to the forth coming International Exhibition appears to be in a fair way for solution. The urgent representations made by the Editor of this Journal of the necessity of other arrange ments than those made for general exhibitors appear at length to have obtained hearing in the proper quarters. The British executive undertake to receive and unpack the contributions of British exhibitors. A meeting of intending contributors was held at the Society of Arts last week, Mr. Peter Le Neve Foster, who has taken a kind interest in the matter, having placed a room at their disposal. Nothing definite was fixed, but it seems probable that the result of the organization will be the appointment of an agent, who, for a specified price, will undertake the transmission of the pictures to Paris, the charge of the packing cases during the time of the exhibition, and their final re packing and return. If this can be managed ‘at a moderate cost by a trustworthy person, photographers will have reason to be grateful to those through whose agitation and instrumentality the arrangements have been brought about. The diffused focus controversy appears almost to have run its length ; although it is to be renewed at the next meet ing of the Photographic Society, little more can be said on the subject. It seems to be generally admitted that every art of a picture ought to.be sufficiently defined, the only question which remains open, depends upon what constitutes sufficient definition, and that is a point which cannot be settled by discussion, as it must depend entirely upon the subject, and must be determined by judicious taste rather than absolute rule. It should not be forgotten that a blurred or fuzzy image is quite as objectionable as an over-sharp one. It is satisfactory to think that a power is now in the hands of photographers whereby, if they have good judgment and taste, the amount of sharpness of definition and diffusion of definition can be exactly apportioned to the subject; and I, for one, am grateful to the optician who has made such an important contribution to the facilities for pictorial por traiture. The distribution of the medals at the last meeting of the Society was a most interesting scene. The venerable Pre sident, whose personal reminiscences ranged over a period of seventy or eighty years, in reviewing the stupendous events of the period, arrived at the conviction that none of more importance to the happiness and progress of mankind had transpired than the discovery of the art of photography. This address formed a happy prelude to the ceremony of distributing the medals to those gentlemen who had dis tinguished themselves by excellence in the art he had so eulogized. As each claimant advanced to receive his medal, the plaudits of the meeting served, by the varied degrees of heartiness, as a measure of the popularity of the artist and his productions ; and the few words addressed to each, with happy spontaneity, by the President, were most appropriate and effective. The offering of medals has by some been regarded as derogatory to fine art. Photography is, how ever, an art sui generis, part fine art, part science, and part manufacture; and I am satisfied that the award of medals does serve as a stimulus to excellence. There has not been much of interest or importance at the Societies generally. An interesting paper on Dialysis was read at the South London Society. At the North London meeting the members engaged in gossip, not having a paper to discuss. In the Provinces there has not been much that was noteworthy. One of the photographic events of the year for which I always look with pleasure—the issue of the YEAR-Book of Photography—has just taken place. I suppose I should not be permitted by the Editor in these columns to record my admiration of the work as a whole; but I must take occasion to remark that it contains such an array of original articles, on such important and varied subjects, by such a number of the ablest representatives of every phase of photo graphy, as I feel certain has never before been found within the space of a shilling volume. ON THE USE OF SULPHOCYANIDES IN TONING. BY ALFRED HUGHES. There have been many able articles, by different authors, on the use of sulphocyanides as solvents for the unchanged chloride of silver in printing, which have appeared in the various photographic journals, and which much attracted my attention. I tried various experiments, but as fixing agents I found the sulphocyanides were not in any way comparable with hyposulphite of soda. In the first place, though the prints may be immersed in any strength of solution for any length of time, yet, when washed and dried (by exposure to light) the white portions turn to a yellowish red colour, extremely unsightly, and choking up the gradations of half-tones. In the number of the Photographic News for November 30th I find an able article by Mr. Carey Lea, and whose experiments on the comparative value as fixing agents of the sulphocyanides and the hyposulphite come to the same result as mine. There is an exception to this; that is, when the sensitive salts are held in collodion, as in the Wothlytype and in Mr. Simpson’s collodio-chloride processes. In these
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