Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP10048777ApriorityCriticalpatent/JPS5434818A/en
Publication of JPS5434818ApublicationCriticalpatent/JPS5434818A/en
PURPOSE: To make it possible to control the amount of light of exposure with the high accuracy by providing a counter circuit at the former stage of a counter circuit of pulse of the shutter speed value which corresponds to the amount of exposure, and forming the second shutter speed value with the output of this counter.
COPYRIGHT: (C)1979,JPO&Japio
JP10048777A1977-08-241977-08-24Shutter control circuit
PendingJPS5434818A
(en)