Nikon Corporation

Kiyoshi Yasuda

Takayuki Funaoka

Hideaki Sugiyama

An interchangeable lens that is removably attachable to a camera body includes: a first clock receiver that receives a first clock signal from the camera body; a second clock transmitter that transmits a second clock signal to the camera body; a lens that is driven by a driving force from a first drive member; a receiver that receives an instruction signal from the camera body in synchronization with the first clock signal; and a first transmitter that repeatedly transmits positional information on the lens to the camera body in synchronization with the second clock signal.

Accessory

An accessory that can be attached to a camera body, the camera body including a first camera-side clock terminal that outputs a first clock signal, a first camera-side data terminal that outputs a first data signal, and a third camera-side data terminal to which a third data signal is input, the accessory includes: an eighth terminal that is brought into contact with the first camera-side clock terminal; a seventh terminal that is brought into contact with the first camera-side data terminal; and a ninth terminal that is brought into contact with the third camera-side data terminal, wherein the eighth terminal is positioned between the seventh terminal and the ninth terminal.

Accessory that is removably attachable to a camera body

An accessory that can be attached to a camera body, the camera body including a first camera-side clock terminal that outputs a first clock signal, a second camera-side clock terminal to which a second clock signal is input, and a first camera-side power supply terminal that outputs first power, the accessory includes: an eighth terminal that is brought into contact with the first camera-side clock terminal; a tenth terminal that is brought into contact with the second camera-side clock terminal; and a second terminal that is brought into contact with the first camera-side power supply terminal, wherein: a distance between the tenth terminal and the second terminal is longer than a distance between the eighth terminal and the second terminal.

An accessory for a camera body, the camera body including a second camera-side clock terminal to which a second clock signal is input, a first camera-side power supply terminal that outputs first power, and a camera-side input terminal to which a signal indicating whether or not data communication is allowed is input, the accessory includes: a second terminal that contacts with the first camera-side power supply terminal; a sixth terminal that contacts with the camera-side input terminal; a tenth terminal that contacts with the second camera-side clock terminal; a first terminal group comprising a plurality of terminals between the second terminal and the sixth terminal; and a second terminal group comprising a plurality of terminals between the sixth terminal and the tenth terminal, wherein the number of terminals in the first terminal group is same as the number of terminals in the second terminals.

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Nishitokyo, Japan

Kiyoshi Yasuda