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The photographic news
- Bandzählung
- 27.1883
- Erscheinungsdatum
- 1883
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- Englisch
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- Hochschule für Grafik und Buchkunst Leipzig
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- Hochschule für Grafik und Buchkunst Leipzig
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- Bandzählung
- No. 1300, August 3, 1883
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Zeitschrift
The photographic news
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- Titelblatt Titelblatt I
- Register Index III
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August 3, 1883.] THE PHOTOGRAPHIC NEWS. 487 that attention from the members of our Society to which it is entitled, seeing the numerous experienced members we have who possess a selection of the most rapid lenses and expensive cameras, with quite an assortment of shutters of different makes, and who expend liberally in paying high prices for the most rapid plates; yet, when opportunity arises, all these advantages are neglected, or, if used, are employed with great doubt as to the result. This should not be the case; for, with a little necessary attention and study, instantaneous work with a shutter ought to be as certain in its results as ordinary work with a cap. To attain this desirable end, four items will be found indispensable; namely, a good light, a rapid plate, a rapid lens, and a shutter. Without the first, the other items are of little use in instantaneous work. There are so many good rapid plates in the market, upon which the makers say that pictures can be taken in a fraction of a second, that unless our amateur makes his own he can hardly go far wrong in selecting; but I strongly advise keeping to one make and thoroughly proving its capabilities. In this way far better results will be obtained than by a continual change from one maker to another. The lens must be of a rapid combination type, and of sufficient focal length to cover the plate with full aperture. This is essen tial to allow the full advantage of a rapid shutter. This latter requires more than a passing thought, and is an indispensable aid to the previous three items; for upon its judicious use depend the success of the final operation. Although there are a great many kinds of shutters in use— some very large, some very small, and some very rapid—-yet very few possess any means of adjustment for speed, which I consider to be a necessary and most important item. I will take the drop shutter, placed between the lenses, as an example. This, if not found sufficiently rapid of its own weight, is usually pulled down by a rubber band, which increases its speed con siderably ; but possibly one quarter of the speed would have been sufficient for the subject being photographed. I would suggest that all makes of mechanical shutters should be supplied with the maximum amount of force to start with, but with an appliance to regulate the speed—say by a screw with degrees marked upon it—so that a record could, be taken of the pressure applied. Thus, upon developing a picture with a known pressure, the following information would be obtained once for all. If the picture was fully exposed but the figures had moved, it would at once be inferred to be useless trying that .class of sub ject at the speed employed, which would have to be increased until movement of the figures was no longer discernible. If, when the figures are sharp, the plate appears under-exposed, the attention must then be turned to the light, the rapidity of plate and the nature of the development; knowing that to take this class of picture successfully, it must not have a longer exposure than the record of the test subject. My own shutter (which is a rotary one) has this regulated pressure applied to the rotary disc. If this shutter worked between the lenses it would be all I could wish; but, unfortunately, it fits upon the hood—a most inconvenient place. The next aid is the finder., and this I have found of very great use in watching any moving objects until they arrive at the exact position desired upon the plate. It is a very simple little instrument which any one can make for himself, being merely a small box having at one end a piece of ground glass of a shape corresponding to that in the camera, and at the other end a double-convex lens such as is used by watchmakers, covering on this focussing-screen somewhat less of the subject than the working lens. I have found this simple little instrument of inestimable value in quickly arranging the perpendicular lines of buildings when operating from the top of an omnibus, &c. This brings me to my new portable camera-holder for use on boat or omnibus, &c. Most amateurs who have attempted to plant a camera on a crowded boat will, no doubt, have experienced the difficulty in finding a safe and suitable position for the camera-stand ; but if there be a hand-guard or rail—such as is usually to be found on our steamers, omnibuses, and tramcars—this little holder will provide a firm resting-place for the camera. It forms a kind of adjustable clamp, with an universal or ball-and-socket movement. When it is attached to the camera the clamping-screw is adjusted to the thickness of the hand-rail, to which it is then pushed on and screwed quite firm, when it will be found securely fixed and out of the way of passers-by. The ball-and-socket movement will enable you to quickly turn the camera in any direction, and will remain sufficiently firm to admit of the re quired exposure. The street views I pass round have all been taken from the tops of omnibuses by the aid of this holder. The buildings are quite straight, although the omnibus in many instances was not level. The finder being attached enables you to adjust the camera quickly, and to a nicety. Regarding the development of a plate which has had a brief exposure: I find an energetic and quick one the best, with as little restrainer as possible. Very possibly there may be nothing new in these few remarks; but if they are the means of directing the attention of my fellow members to this most entertaining branch of our art, the end of this paper will have been attained. Notes. Mr. Ray Woods arrived at Plymouth safe and sound last Friday night from Caroline Island, mid-Pacific. The opening of the Vienna Electric Exhibition has been postponed for a few days. Among other novelties will be an art gallery lit by various modes of illumination, in order to test the value of electricity for viewing paintings, engrave ings, and photographs. The stout little Willem Barents, which may well be desig nated the Polar photographer, so many camera pictures has she brought back of the far north, is engaged on her fifth voyage to the Polar seas. Mr. W. J. A. Grant, who made two voyages in her, and who last year went out in the little ill-fated Kara, to find the Eira, has given up Arctic voyaging for one summer at least. The Lick Observatory, Philadelphia, for which the largest telescope in the world is being constructed, is making great progress. The transit house and the chambers for the photo-heliographs have been in working order for some time, and it is expected that by the end of the year the observatory will be completed. “ Visitors are respectfully informed that a photograph will be taken of the visitors on the pier in a group, under the Lantern Hill, at 10-45 this morning.” So runs, accord ing to a correspondent, the announcement of an energetic Ilfracombe photographer, one of whose pictures is forwarded —a picture that tells us that the photographer in question wisely chooses the most favourable time in the day for the execution of his purpose. Our good friend, Mr. Lindt, of Melbourne, sends us a fine series of landscape photographs of the Bush and Austra lian scenery generally. We have the pleasures of kangaroo hunting depicted ; camera sketches of picnics as they are at the Antipodes ; of the log-huts of the bushmen, and por traits of the jet-black aborigines, who, in our eyes, strange to say, always look like sickly mechanics, rather than the sturdy children of Nature. Mr. Lindt complains of the lack of subjects for the landscape photographer in Aus tralia ; but, however this may be, he is, at any rate, quite able to make the best of what there is.
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