An apparatus for taking photographs of the sun.

Astronomy. A camera with a rotating plate for making time exposures of celestial objects automatically. Now historical.

An instrument used for photographing a spectrum. More widely, any apparatus for producing a visual record of a spectrum (optical or otherwise). Cf. m…

Astronomy. An instrument in which a beam of light triggers a camera at a known instant of time, e.g. so as to show the exact time at which a star…

A camera combined with a theodolite. Now rare.

a camera designed for taking photographs for use in photomechanical printing.

(see quot. 1948).

a camera used in photomicrography or X-ray diffraction studies.

(a) a photoelectric timer for regulating exposure time in radiography; (b) a timer for races incorporating a camera which photographs the finish.

a camera designed for the precise photography of trajectories and other features of high velocity flight, using techniques such as high-speed…

a camera mounted on a single rail which allows positional adjustment and may also support additional components.