Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . y in photography. but few things iiDprovided for. One of these is a simple and cheap apparatusfor making panoramic views. Of course, we all know of the Johnson pano-ramic or pantascopic camera, which moves the objective laterally over the plateduring exposure, but it is intricate and expensive. 95. Exposing shutters are offered in great abundance now, so compact, soingenious, and so complete as to enable the operator to regulate the exposurequickly, at will, to
Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . y in photography. but few things iiDprovided for. One of these is a simple and cheap apparatusfor making panoramic views. Of course, we all know of the Johnson pano-ramic or pantascopic camera, which moves the objective laterally over the plateduring exposure, but it is intricate and expensive. 95. Exposing shutters are offered in great abundance now, so compact, soingenious, and so complete as to enable the operator to regulate the exposurequickly, at will, to suit the light and subject of the occasion. If a ruler is tried on the drawing, it will be found that the lines above the horizon areheaped up where they join, while those below are crushed down, looking slightly con-cave.—John Moran. 95. My shutter is simple, cheap, and sure. Fig. 215 shows the shutter complete, readyfor action. The string runs through an opening at the top, and may be of any length. The case for the shutter may be of tin or cardboard. Thedrop should be of Russia iron or copper. Fig. 217. Fig. 215. Fig. Fig. 216 has the sliding front removed to show the is suspended in the picture about two-thirds of its properheight. It works in the slot of the diaphragm, and shouldwork very freely.—William R. Wright. I send a photograph of a very easily made shutter of myown contrivance (Fig. 217). Its construction will be understood at once. I find itconvenient on every occasion. It will act instantaneously ifyou desire it, and very slowly if you wish it. Moreover, itis easily made at little cost.—Col. Ottavio Baratti. A very ingenious stop, invented by Mr. Klein, the meritof which lies in its great simplicity, as well as in its perfectadaptation to the end to be obtained, is, viz: The motion isgiven by an India-rubber string (Fig. 218), more or lessdistended, according to the duration of time required. The opening is madeby an increasing and decreasing
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Keywords: ., bookcentury1800, bookdecade1880, bookidwilsonsquart, bookyear1887
