Camera system, camera body, and communication method for acquiring lens information
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United States of America Patent
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Oct 17, 2017
Grant Date -
Aug 4, 2016
app pub date -
Apr 7, 2016
filing date -
Nov 8, 2013
priority date (Note) -
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Abstract
A camera system, a camera body, and a communication method capable of satisfactorily acquiring lens information necessary for image processing or the like for a frame of a video from an interchangeable lens are provided. Three-wire serial communication is performed in which a request signal is transmitted to the interchangeable lens in synchronization with a synchronization signal (VSYNC) of an imaging element in a video recording mode, and a response signal is received from the interchangeable lens. In a communication mode in the video recording mode, the number of transmissions of a first request signal relating to acquisition of lens information such as a focus position, a diaphragm value, and a zoom position is limited. Accordingly, communication other than communication relating to acquisition of lens information can be performed in a period of one frame.
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