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

1862. March 28, 1862.] THE PHOTOGRAPHIC NEWS. 155 int fro is I us duly n from 01 i a liti it half manual, 6th edition. If I had the means I should like trying an organic iodide and bromide in place of, or in conjunction with, the usual ones. I must corroborate your correspondent’s experience in the production of mealiness by adding acid to the paper sensi tizing bath, I can produce it directly by that means, and banish it again with an excess of alkali.—I am sir, yours c., Wm. BARTHIOLOMEW. vourN „ srint 20 THE EOSIN PROCESS OF HERR SAUNDERS VAN LOO. grapher r like I mts) "'I 1 > of ) Sui,—I have seen in your estemed PHOrOGRAPHIC News, theatranslation of an article placed by me October Gth Res in the Cosmos, concerning; “ Dry Collodion with Suttod io Phif of lod m print none • ne futu rintin- reciated ime sio ciation ould n t what t phol A Phot om SOU at ot‘ le whe As I desire to facilitate the experiments in this way to Persons practising this method, I make haste to inform yon that in the article alluded to, is not expresssed plainly the kind of pyroxyline suited to this method. The speci- en called “ rotten ” in the valuable work of Mr. Hardwich (6th edition), is the desired one. The ordinary sorts of pyroxyline do not adhere to the glass, and give foggy pictures. I operate on glasses from the size of quarter-plate to whole-plate and larger: in the latter case the edges of the film are fixed with alcoholic Varnish. By inserting this communication in your esteemed Proro- OnAPIIC News, and giving me in a few words the account of the reception of this letter, you will oblige, your obedient servant, D. J. SAUNDERS Van Loo. ight t» 'pies w nt inf amatio’ uite 4 ir, yo 1 ”* IuISH ‘nociit^ I salts o an im N. s of i News,® out tb° of bi essary grain 0 iter, ad A di ment " ollodil on wil j greatl) sensiti, n tryiv dew, b is ve” iorphi peculib -iodiz I id, miv conip ( ’ s ) I possib.) I lined t v in tb? ren wit 1 1 Photographit Zotes an Queries. PHOTOGRAPHIC Exchange Club. DEAR Sik,—Will you allow me to make a suggestion as to marking the prints for the Exchange Club, which is, that the members, if working dry plates, should state whether the plates are purchased ready prepared and sensitised, or prepared throughout by themselves, as if one member procures plates ready sensitized, another may go a step further and have them Printed off by a professional; a third might even have them developed for him ns well. I do not wish to cast any slur on those gentlemen who may procure prepared plates, as I know hat everyone cannot give the necessary time ; but still, I think, the Man who takes his plate of glass, cleans, prepares, exposes, “levelops, and prints, is deserving a little more credit than the 08 wh is only partially a photographer, ’even though the n. may not be so good. . Au think anything in this may be likely to offend anyone, Pzhaps you would be kind enough to make the suggestion, without any remarks ; I only make them to show why I pro- P088 it, and most certainly should be sorry' to annoy any of my "ellow members.—I am, sir, yours truly, W. Labchin. "ult/iam Cross, March 4th, 1862. Hints on Cameras, &c. Dear Sib,—I beg to offer you a few hints in connection with .Vour “ Remarks on Apparatus in connection with Photography.” In reference to your first article on cameras, it must be ad mitted there is nothing more essential to a photographer than a good made camera, no matter how perfect his skill or his lens: too many are made for lightness and portability, without combining with these efficiency. For instance, the dark slide is made so light that it is always getting out of order; the most riseful size I find in practice is nine-eighths of an inch thick, instead of three-fourths or seven-eighths as usual, or even less; with nine-eighths you have two-eighths for the dark shutter, one-eighth between the loose frame and shutter, four- eighths for the loose frames, which will appear quite unneces- sary, and two-eighths for the door. But 1 find the central space one of the best recommendations it has; for you find it gives the quality of a swing back. You may throw the plate out of its vertical position three-eighths any way you please, by removing the loose slide and placing a strip underneath it, so as to bring every part of the picture in focus. Suppose it to be a portrait, the picture the size the lens is intended to cover, and the face to be well defined ; the lower part will be slightly out of focus, in consequence of its being brought too near the plate: by placing the strip of wood under the loose frame at the top, it will bring it into perfect focus. The next thing I wish to call your attention to, is the rack and pinion movement. From what I have seen, I must think the method as bad as the principle is good, for those shown mo have the rack attached to the sliding body, and the pinions to the base board. Now if the racks are fixed in the base board, and the pinions travel with the sliding body, it would be better; but a movement I think bettor still is obtained by sinking two -inch brass rods half in the base board, and half in the sliding body or thereabouts, so the bearing is on the rods only. You would bo surprised how easy the camera is adjusted, and the focus obtained with the greatest accuracy. To mount card pictures, I use glue that will flow free from the brush, square the print A less than the card top and sides (that I think neater than } each way,) glue one end of the print, and place a piece of glass on the glued part, and glue the other end : then you find the glass form a handle to adjust it with, it prevents it curling as much as it does when held in the fingers, is much cleaner, and more manageable. If you think any of the hints of any service, you are at liberty to use them at your discretion; if they are any use, I will try and give you some on other apparatus.—Your obedient servant, W. Nurse. Burnham, March 4,1862. [In using a rack and pinion, the rack should always be attached to the part which travels, and the pinion to the part which is fixed. Our correspondent will find this if ho attempts to work it on the principle he suggests.—Ed.] Painting Magic Lantern Slides. Dear Sib,—I shall feel greatly obliged if you or any of your readers can give me any information on the subject of painting slides for the magic lantern. I much wish to try my hand on colouring some photographs, but my attempts have been com plete failures. I some time since purchased a book published by one of the principal artist’s colourmen, in which you are in structed to use moist water colours. It is perfectly clear that the writer cannot have tried the experiment, or he would not have recommended what is an utter impossibility. My own im pression is that the article used is Canada balsam, or something of that nature, but how the colours arc mixed, or how laid on evenly, I am at a loss to imagine.—I remain, dear sir, yours faith fully, B. Jones. Cheltenham, March \Qth, 1862. Wet Collodion Out of Doors. Sir,—Every little is a help, so I address you concerning the staining of plates, owing to their being carried a distance in out-door photography, I have found that a plate being carried, say five hundred yards, exposed, brought back and developed with every care, such as draining the plate, using filtering paper, &c.; the surplus solution of silver will run on to the plate holder and back again to the sensitive plate, carrying organic matter with it, and by so doing, causing stains, in many cases spoiling a good negative. I have been served so, and naturally I looked round for something to stop this fault; at last I thought of sponge, so cut in pieces about half-inch square, and placed them in the lower corners of the plate-holder, on the back of the sensitive plate, and ever since have done away with stains. Moreover, I find the plates can be carried farther without the least fear of the nitrate solution injuring the collodion film ; I have carried a plate a quarter of a mile and back without the least injury to film or stain on plate, and then developed with out redipping in nitrate bath ; by others using these exceeding simple things they might save many a good negative.— Remaining yours respectfully, Geo. Yevrah.