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The photographic news
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- 27.1883
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- 1883
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The photographic news
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Band
Band 27.1883
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- Titelblatt Titelblatt I
- Register Index III
- Ausgabe No. 1270, January 5, 1883 1
- Ausgabe No. 1271, January 12, 1883 17
- Ausgabe No. 1272, January 19, 1883 33
- Ausgabe No. 1273, January 26, 1883 49
- Ausgabe No. 1274, February 2, 1883 65
- Ausgabe No. 1275, February 9, 1883 81
- Ausgabe No. 1276, February 16, 1883 97
- Ausgabe No. 1277, February 23, 1883 113
- Ausgabe No. 1278, March 2, 1883 129
- Ausgabe No. 1279, March 9, 1883 145
- Ausgabe No. 1280, March 16, 1883 161
- Ausgabe No. 1281, March 22, 1883 177
- Ausgabe No. 1282, March 30, 1883 193
- Ausgabe No. 1283, April 6, 1883 209
- Ausgabe No. 1284, April 13, 1883 225
- Ausgabe No. 1285, April 20, 1883 241
- Ausgabe No. 1286, April 27, 1883 257
- Ausgabe No. 1287, May 4, 1883 273
- Ausgabe No. 1288, May 11, 1883 289
- Ausgabe No. 1289, May 18, 1883 305
- Ausgabe No. 1290, May 25, 1883 321
- Ausgabe No. 1291, June 1, 1883 337
- Ausgabe No. 1292, June 8, 1883 353
- Ausgabe No. 1293, June 15, 1883 369
- Ausgabe No. 1294, June 22, 1883 385
- Ausgabe No. 1295, June 29, 1883 401
- Ausgabe No. 1296, July 6, 1883 417
- Ausgabe No. 1297, July 13, 1883 433
- Ausgabe No. 1298, July 20, 1883 449
- Ausgabe No. 1299, July 27, 1883 465
- Ausgabe No. 1300, August 3, 1883 481
- Ausgabe No. 1301, August 10, 1883 497
- Ausgabe No. 1302, August 17, 1883 513
- Ausgabe No. 1303, August 24, 1883 529
- Ausgabe No. 1304, August 31, 1883 545
- Ausgabe No. 1305, September 7, 1883 561
- Ausgabe No. 1306, September 14, 1883 577
- Ausgabe No. 1307, September 21, 1883 593
- Ausgabe No. 1308, September 28, 1883 609
- Ausgabe No. 1309, October 5, 1883 625
- Ausgabe No. 1310, October 12, 1883 641
- Ausgabe No. 1311, October 19, 1883 657
- Ausgabe No. 1312, October 26, 1883 673
- Ausgabe No. 1313, November 2, 1883 689
- Ausgabe No. 1314, November 9, 1883 705
- Ausgabe No. 1315, November 16, 1883 721
- Ausgabe No. 1316, November 23, 1883 737
- Ausgabe No. 1317, November 30, 1883 753
- Ausgabe No. 1318, December 7, 1883 769
- Ausgabe No. 1319, December 14, 1883 785
- Ausgabe No. 1320, December 21, 1883 801
- Ausgabe No. 1321, December 28, 1883 817
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beneath the negative I have just passed round, by the light afforded by an ordinary match, and developed with iron deve loper prepared by dissolving ferrous oxalate in potassic oxalate. I then exposed another plate under the same negative to the light emitted by two inches of magnesium ribbon, held at a dis tance of six inches. The developer not being restrained suffici ently, the result was fogged ; but on a second trial, the developer being further restrained, a successful result was obtained. The developer consisted of one ounce of developer, plus nearly one ounce of a twenty-grain solution of potassic bromide. Similar experiments were tried with plates containing only bromide of silver, the same developers respectively being used. The bromide plate exposed to magnesium light developed more quickly than the bromo-iodide plate under the same circumstances, and there was a tendency to veil. On comparison, the bromo-iodide plate had much the best of it, so far as latitude was concerned, but not to the extent I ex pected. What I wish chiefly to draw attention to, however, is, firstly, the great latitude available in both cases ; and, secondly, the great restraining powers of alkaline bromides. You will also notice the difference in colour. The plates exposed by mag nesium light, and very strongly restrained in development, look as if they had been developed with pyrogallic. It occurs to me as not at all improbable that the presence of bromide in the alkaline developer may partially, and in a small measure, account for the difference in colour between a pyrogallic developed plate, and one developed with ferrous oxalate. The transparency method, however, may be objected to ; for it does not necessarily follow that similar results can be obtained in the camera when the subject consists of a landscape with its varied tints and shades. In the field one would not expect the same degree of latitude that is available in transparency-making, yet I do not think it will be difficult to show that even in the field there is far more latitude than is usually supposed, and that photographers do not fully recognise the great power at their disposal in the manipulation of the developer. To carry out a perfect series of tests in this matter requires, in the first place, the indispensable kind of day best suited for landscape-photo graphy ; and, secondly, a day on which there is little variation in the quantity and quality of the light in order to render the exposures properly comparable. These conditions are not easily attainable in our climate, and especially at this time of the year ; and though I have for some time past been desirous of carrying out such a series of experiments, the time and the opportunity have not occurred together. Owing to the precipi tancy with which I have had to introduce this subject, 1 have carried out a few experiments on the only opportunity I had ; but though very imperfect in their nature, they may not be without some little value. A camera provided with a Dall- meyer’s 6} by 5 rapid rectilinear was placed at the door of my operating-rooms, and brought to bear on a most unprepossessing subject—a row of houses. The light was certainly unvariable, or at least, but little variable; but the atmosphere was hazy The plates used were rapid ; but not wishing to have my expo sures too long, and rather under-estimating the power of the light, I worked with the full aperture of the lens. Three bro mide plates were exposed in succession for one, three, and nine seconds respectively, and then developed. The first was developed in ferrous oxalate (my favourite developer), un restrained by bromide, and came up quickly and thin through over-exposure. The second was restrained with a few drops of bromide, and gave a similar result. The third was developed with a very considerable quantity of bromide in the developer, in order to obtain, if possible, a nearer approximation to the exposure, and gave a negative almost as good as might be ex pected, considering the day and the subject. I do not think I should be far out in saying that it had about twenty times the exposure necessary with a normal developer. A little later on, five plates containing iodide as well as bro mide were exposed for 1, 3, 9, 27, and 81 seconds respectively. The first, developed with the unrestrained iron developer, was over-exposed, but came up better than the corresponding bro mide plate, though it possessed the same sensitiveness. I endeavoured to develop the four others to exactly match, if possible, the first one, and almost succeeded ; but the amount of bromide required advanced in a greater ratio than the length of exposure. It only took, however, the same amount of bromide to restrain a bromo-iodide plate that had had 27 seconds’ expo sure that was required for a pure bromide plate with 9 seconds’ exposure, A chloro-bromo-iodide plate was exposed for two seconds, and another for two minutes, and the results on develop ment showed that it is quite within the bounds of possibility to develop successfully two plates having such very different exposures. All these results, however, were very poor, but they showed what might be done on a suitable day ; and at the earliest opportunity I purpose carrying out a more complete series of tests, and bringing them up at some future Technical Meeting. Of course a similar series of tests should be made with the alkaline developer. The alkaline developer is said by its advocates to be superior to the iron developer so far as latitude is concerned. This may be true so far as under-exposure is con cerned, but, judging from the foregoing experiments, I feel inclined to doubt it in reference to over-exposure. FROM TREVES TO HANOVER. BY J. H. T. ELLERBECK.* The direct route to Brussels is too common to merit remark. Belgium itself is worthy of a special note. I will, therefore, commence at Trves, specially and solely interesting on account of the grand remains of Roman architecture. First in rank is the Porta Nigra, supposed to have been built by Claudius as early as the year 700 for military defence. After many vicissitudes it was restored early in this century by govern ment to the state in which it now stands. Next in interest is the Amphitheatre, in a very fair state of preservation, formerly capa ble of seating 60,000 spectators. The gateways leading to the dens can be plainly seen in the photograph. Near the Amphi theatre is the Roman Baths, so called ; but it is doubtful if they were ever used as such, but more probably as a palace. The Cathedral, formerly a palace, has a disappointing exterior. The Liebfrauenkirche is pretty, but too cramped to photograph, and requires a north light. A few miles from here is the Igelsale, or column of Igel—the most remarkable of the old relics in Ger many, or even Europe, and partly so because shrouded in mys tery as to its purpose. The legend is that it was raised to the memory of a merchant’s son, who, with his bride, was drowned on their wedding day. From Trves to Berncastel by boat. The town is in itself not particularly interesting, being mostly new, or nearly so ; but the valley behind Tiefenthal is one of the prettiest and most remantic in this district, and affords a fine view of the old ruins of Lands hut. It is well worth a half-day’s camera work. I commenced my walk here, first putting wheels to my box. I may here ex plain that I carried the bulk of the impedimenta (in all about 140 lbs.) in a large and strongly-made box, to which I could in five minutes’ time fix an axle and pair of wheels, and also a perambulator handle. Thus I was independent of help, and trudged along at the rate of fifteen miles a day comfortably, with a weight of perhaps eighty to one hundred pounds. Three or four wheels would, however, be preferable, as having to balance the whole takes too much attention. Two-wheelers or four- wheelers count only by weight on the Continent, so that it is no more expensive by rail. From Berncastel the route along the river increases in interest, though occasionally tame. Many pretty villages—often buried in orchards, though more frequently backed by vineyards—are passed. I put up at Kinheim, a large village with a good view. Some old streets and farmhouses here are worth doing, but the weather was unfortunate. Later, we reach Narbacb, commanded by the ruins of Grfinburg, and presenting many good views. Grafinburg derives its name from the Countess or Grfin von Star kenburg, who, it is supposed, built this castle. The lady, not satisfied with defending herself when necessary, attacked the archbishop of Traves for some insult, real or fancied, and, defeat ing him, confined him in her castle dungeon for some eighteen months, releasing him only on payment of a large ransom, with which this castle of Narbacb was erected for her own use, when her son, coming of age, took possession of Starkenburg on the hills close by. The road from Narbach to Alf is very interesting, but not so strikingly pictures as to be worth walking, so I saved a day by riding. This would be well worth two or three plates. A trial from the carriage was a failure, as the jolting interfered some what with the steadiness of the camera. Several good views are also obtainable of the Marienberg, round which the river winds very considerably—so much so that any one leaving the boat at Alf can walk up to the ruins, drink a “ Schoppen of Wein ’’attheinn, and meet the steamer at the other side without hurry. A beautiful winding valley leads from Alf to Bertrich, • Bead before the Liverpool Amateur Photographic Association.
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