The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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Cylindroscope
stamped or ruled with a scale of vertical lines, marking the angles subtended at the original point of sight - or it can be placed under a glass scale 'on which such lines are ruled. In the case of the panoramic picture an equal scale of parts will plot off the subject into equal horizontal angles, and if the actual radius of the camera is known, together with the aspect of one object, all the horizontal aspects are readily obtainable ; whereas with an ordinary photograph such determinations are much more complex
Fig. 4o-
and require a datum mark on the print to show where the axis of the lens cuts the scene. The original form of all cameras of the above type is that of Marten's (1845), a camera used with daguerreotype plates bent into a half-circle. In recent times cameras of the above-mentioned type, and adapted for use with roll-film, have become very popular. (See Panoramic Camera.)
Cylindroscope. Captain Moessard's apparatus for exhibiting panoramic views, the print being curved to a radius corresponding to the original radius of the panoramic camera which was used in obtaining the negative. The point of view is in the centre, where, if necessary, a suitable eye-lens is fixed. Another method of viewing cylindrographic or other panoramic pictures devised by Captain MoSssard is to attach the print to the outside of a
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