Compur shutter
A well known German brand of compound shutter.
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Compur
Edit Read more: Leaf shutters, 1911-1914
Edited by Florian S200EXR
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Compur, a gear-train controlled, high quality shutter. One with a small dial for steeing the dpeed wre made before 1931. Those with a ring to set the speed were after 1931. Ther were many variations of the shutter.
Compur shutter - well known German brand of compound shutter.
Concave lens - see Bi-concave lens.
Condenser - optical system which concentrates light rays from a wide source into a narrow beam. Condensers are used in spotlights and enlargers.
Prontor/Compur. The clip on socket of the flash mode terminal.
PC (photographic 2) ...
A PC (Prontor-Compur) terminal located on some camera bodies lets you use cables to connect a flash or strobe. The cable that attaches to the PC terminal is called a sync cord (for synchronization and pronounced "sink") or PC cord.
1 - 1/500 + B Compur Shutter. X (normal) and M (flashbulb) flash sync. V selftimer position.
More data at Schneider Optics and here.
Shutter: 1 - 1/500 second plus bulb. X Flash sync to 1/500 second.
Not a Personal Computer connection as you might think, but a flash connector called a "Prontor/Compur" socket. "Prontor" and "Compur" are names of early shutters. Some think PC stands for "Push Connector", but it doesn't! ...
The PC here stands for "Prontor/Compur," two manufacturers of leaf shutters used in older and large format cameras.
Leica I - was introduced first time to the market at the 1925 spring fair in Leipzig, based on the Ur-Leica prototype developed by Oscar in 1913 and the Prototyp 1 developed in 1923. Followed by Leica Luxur and Leica Compur (a total of 60, ...
The short for PC has by the way nothing to do with in computer technology used short for "Personal Computer", however originally derived from Prontor and Compur ( two type defenitions of shutters from Middle Format and Larg Format cameras), ...
 See also: Shutter, Camera, Exposure, Speed, Photograph
  
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