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A photographer.

An instrument for determining the sensibility of the plates employed in photographic processes to luminous rays.

evice, consisting essentially of an electric arc and a camera, by which a series of photographs of the variations of the arc due to sound waves are obtained for reproduction by means of a selenium cell and a telephone.

The science which relates to the action of light on sensitive bodies in the production of pictures, the fixation of images, and the like.

A modified kind of telescope adapted to taking photographs of the sun.

A lithographic picture or copy from a stone prepared by the aid of photography.

One who practices, or one who employs, photolithography.

Of or pertaining to photolithography; produced by photolithography.

The art or process of producing photolithographs.

An enlarged or macroscopic photograph of a microscopic object. See Microphotograph.

The art of producing photomicrographs.

A nephoscope registering by photography, commonly consisting of a pair of cameras used simultaneously.

Telegraphy by means of light, as by the heliograph or the photophone. Also, less properly, telephotography. -- Pho`to*tel"e*graph (#), n. --Pho`to*tel`e*graph"ic (#), a.

The application of light for therapeutic purposes, esp. for treating diseases of the skin. -- Pho`to*the*rap"ic (#), Pho`to*ther`a*peu"tic (#), a.

Photogrammetry. -- Pho`to*top`o*graph"ic (#), Pho`to*top`o*graph"ic*al (#), a.

Same as Phototypy.

The process of producing a representation of an object on wood, by photography, for the use of the wood engraver.

A print made by photozincography. -- Pho`to*zin`co*graph"ic, a.

A process, analogous to photolithography, for reproducing photographed impressions transferred to zinc plate.

An instrument for registering the movements of the diaphragm, or midriff, in respiration.