Term - Photo telegraphy

Photo telegraphy SWPP Photographic Glossary

Sunday 10th December 2023  

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Photo telegraphy

The transmission of pictures between two points by means of radio or telegraph. A print is wrapped around a cylinder and scanned by a small spot of light. Reflected light values are transmitted as a stream of signals. They control an exposing light source at the receiving station, which exposes light sensitive material on a similar drum.



 

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