Camera system including exposure mode data back and flash accessories

Abstract

Abstract A camera system including a camera body and a camera accessory attachable to the camera body, such as an interchangeable back lid, an interchangeable lens, a flash device and so on, is disclosed. In the system, a plurality of circuits provided in a plurality of camera accessories are controlled by a microcomputer provided in the camera body. Data transmission between the microcomputer and the circuits uses a serial data bus and synchronizing clock line connected therebetween. The circuit to receive the data sent from the microcomputer, or the circuit which should send the data to the microcomputer, are selected by the microcomputer through chip select lines provided between the microcomputer and each circuit. The camera system is capable of coordinating flash mode and a bracket exposure mode. When the bracket mode is set, an exposure value for obtaining a proper exposure condition, a value for obtaining an over exposure condition by a predetermined exposure amount, and a value for obtaining an under exposure condition by a predetermined amount are each calculated for serially exposing a plurality of frames. Serial exposure of the frames is interrupted when a flash photographing mode is discriminated.

Inventors

• 👤 Yoshiiku Kikukawa
• 👤 Masayuki Nakasa
• 👤 Tadahiro Yoshida
• 👤 Mashio Kitaura
• 👤 Masaaki Nakai
• 👤 Takanobu Omaki
• 👤 Nobuyuki Taniguchi

Bibliographic Details