PHOTOMETER
A camera is provided with a photometer capable of indicating the necessity of switching from a natural light exposure mode to a flash exposure mode or of automatically switching from the natural light exposure mode to the flash exposure mode, when the brightness of a portion of the field of view con...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
17.12.1974
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Subjects | |
Online Access | Get full text |
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