| 摘要 |
<p>PURPOSE:To use an accessory in common among plural camera bodies different in type by receiving and selecting an information identification code from the accessory side by an accessory information reader provided in the camera body side. CONSTITUTION:When a photometric switch SW1 of a camera X is turned on, an accessory Y is fed through a microcomputer MCP, and the high-level signal converted to time series is sent to AND circuits AN1...ANn from a register SR2 by the clock output of the computer MCP. A measured value at open aperture, the minimum diaphragm value, an open F value, etc., are sent to a shift register SR1 of the camera X through circuits AN1-ANn and an OR circuit OR in accordance with the identification code, which identifies the quantity and contents of information provided in the accessory, by information setting switches S1, S2...Sn. When a release switch SW2 of the camera X is turned on, selected accessory information is given to a terminal DB of the computer MCP from the register SR1.</p> |
