Patent ID: 8885094

Claim:
An accessory which has a light-emitting section and is capable of being attached and detached to and from a camera, the accessory comprising: a plurality of terminals located in an array that extends in an array direction, the plurality of terminals including a power terminal to which power is supplied from the camera, an emission control signal input terminal to which an emission control signal controlling a light-emitting state of the light-emitting section is input from the camera, and a plurality of signal input terminals to which a control signal is input from the camera, the signal input terminals including a communication control signal input terminal to which a communication control signal controlling a start of a data signal communication which communicates a data signal with the camera is input from the camera; and a ground portion corresponding to the power terminal, wherein in the array direction, the power terminal, the communication control signal input terminal, and the emission control signal input terminal are arrayed in this order, and the ground portion is disposed in a position further away from the power terminal than is the communication control signal input terminal.