The Optical Magic Lantern Journal (June 1891)

The Optical Magic Lantern Journal and Photographic Enlargor. 123 and the exposures are made by a rotating shutter, which when wound up will give ten or twelve exposures,a slight depression of a trigger being sufficient. Time exposures may be given by moving the same trigger upwards, which causes the shutter to remain open, whilst a touch in the opposite direction causes it to close. The most ingenious part, however, is in the method of changing the camera for the two styles mentioned. A sliding movement of the front portion | causes the stereoscopic partition to fold away, and opens out two small wings in the inside, which regulates the size for the single picture; this change can be effected instantly. We are informed by the wholesale firm (“ Leviathan,” London), that they anticipate a great run on this camera. Society Meetings. BueECHIN PHOTOGRAPHIC AS880CIATION. — On I5sth ult., the secretary, Mr. J. D. Ross, read a short paper on “ Stereoscopic hotography with a (Juarter-plate Camera.” Although not advocating the use of such a camera for the best sterecscopic work, he pointed out that a stereoscopic camera is not essential to the production of stereo scopic slides, and in proof exhibited a number of trans| parencies and other slides, taken with a small camera | ; : , Was given on the working of kallitype papers by. Mr, CAMERA CLUB.—On April 30, Mr. J. Traill Taylor read without extra top for stand or any extra apparatus. a paper on “ Lantern Optics.’ Mr. Lyonel Clark took the chair. (Particulars will be found on another page.) May 14 was a lantern evening at the Camera Club, and slides: were shown by Messrs. D'Arcis, Pinkney, Fitz-Payne, Phipps, Lucas, Chang, Charters, White, Humphery, and other members. May 21, Dr. J. J. Ackworth read a paper on “The Flash Light.” He, at the outset, dwelt upon the use made of the Hash light on the continent for the production of artistic photographs, and exhibited a large number of examples of single figure and group studies. He described the appliances in use, and illustrated his remarks by showing specimens of lamps employed in Germany. The working of these was practically demonstrated, and some exposures were made by Mr. Chang. LIVERPOOL AMATEUR PHOTOGRAPHIC ASSOCIATION, — The third ordinary meeting of the twenty-eighth session was held on April 30, Mr. Paul Lange (president’, in the chair, The president exhibited Mr. Friese Greene’s handcamera, enabling as many as sixty consecutive photographs to be taken in one minute. Mr. John Price explained ‘ Voightlander's’’ hand camera lens; also Ross and Company’s universal symmetrical lens, Mr. J. A. Furnivel, of Manchester, gave a most interesting description of the optical lantern, explaining its various parts, jets, gas cylinders, &c.,and after the lantern had been lighted up, proceeded to give some curious sound experiments, which represented the waves of sound of the human voice on the screen. Some beautiful microscopic slides were also shown, and the adiptability cf the lantern to microscopic work explaine)., CROYDON MICROSCOPICAL AND NA?YORAL Hisrory Cuup (PHCTOGRAPHIC SECTION).—On May 1, Mr. J. A. Carter, M.A., in the chair, Mr. D. E. Goidard, F.R M.S., read a paper on ‘‘ Elementary Silver Printing.” In an interesting way he set forth the whole routine of silver work, from seasitising one’s own paper to the finished and mounted picture. On May 15, Mr. Edward Lovett, president, in the chair, Mr. J. A. Sinclair, of the Liverpool Amateur Photographic Association, gave.an illustrated lecture, entitled '‘ A Scamper Across Normandy with the Camera.’’ The lecture was interspersed with highly in teresting, curious, and laughable incidents that occurred during his travels. The fine interiors of the French cathedrals were particularly noticeable for their freedom from halation,and the whole series of pictures illustrating the lecture were of the highest technical excellence. COVENTRY AND MIDLAND PHOTOGRAPHIC SOCIETY.— A general meeting was held May 6; resignation of hon. secretary, Mr. Harker. Mr. Thomas W. Owen, The Terrace, Earlsdon, Coventry, was appointed hon. sec. HACKNEY PHOTOGRAPHIC SocigTy.— The annual general meeting was held on May 14: Mr. Walter Wesson presided. The following gentlemen were elected for the ensuing twelve months: President, Dr. Roland Smith ; vice-president, Dr. Ambrose Kibbler ; Messrs. J. Herbert, Frank Jolly, and J. A. Sinclair (the latter gentleman was formerly of the Liverpool Society); Treasurer, T. O. Grant; curator, S. H. Barton; council, W. L. Barker, H. J. Beasley, Walter Wesson, A. Dean, F. Houghton, and C. F. Hodges. Mr. Fenton Jones, 6, Victoria-street, Hackney, was re-elected hon. sec, The report (third year) was a very satisfactory one. NortH MIDDLESEX PxroroGRaPHic Sociery.—On May 11, Mr. G. W. Marchant in the chair. an interesting demonstration on the working of platinotype papers was given by a member.—A field day was organised for Saturday, the 23rd ult.,to Male End and district, when a fair number of the members attended. The party proceeded to Chingford old church, securing several very pretty bits on the way.—On May 25, a demonstration F. W. Cox. 10: Correspondence. MAGAZINE HAND-CAMERAS, [ lo the Bditor. ] Str,—I am one of those who are interested in the magazine form of hand-cameras, and as I understand that ‘‘threatenings and slaughter” are being breathed against those who use them without a licence, I ask you for aid in the form of information as t> the following, Am I at liberty to make a camera and reservoir, the plate from the latter being capable of being transfcrred to the focussing plane of the former, and removed therefrom without subjecting them to the action of light, and this by mechanical means operated from outside ?—Yours truly, W. S, BARNFIELD, London, May, 1891. {Cameras with reservoirs of the nature mentioned have heen in use for over twenty years, and they have formed subjects for patents which have expired miny years ago; therefore there can be no let or hindrance to the adoption of this system.—Ep. } EXCHANGE OF LANTERN SLIDES, [Lo the Editor.) Sir,—Although Mr. Douiney,in his letter in last issue, avoids mentioning names, [, having a large number of customers, may or may not be the party to whom he alludes. However, J, and in fact all those doing a large business, have at times been compelled apparently to disappoint those wishing to hire a particular set of slides for a given evening. During the busy season I have as many as twenty-four sets of tne same slides required for use in one day, and it is not always possible to supply the : particular set at such short notice as your correspondent ; evidently gave to the firms to whom he applied, and [ think, when he considers the matter, he will not blame the tradesmen. [, and ot course others too, are sometimes placed in an awkward position; thus, a set of slides is ordercd by A, which is promised for a given time, L