A connector for a camera having a camera body side mount and a rotatively mountable-dismountable type optical accessory side mount capable of being coupled and uncoupled by the rotation thereof relative to the camera body side mount and in which a plurality of camera body side connection terminals are formed on the peripheral area of the camera body side mount and a plurality of optical accessory side connection terminals adapted to contact the camera body side connection terminals during rotative coupling are formed on the peripheral area of the optical accessory side mount to thereby enable the communication therebetween includes at least one level difference provided at the height of the camera body side connection terminals in the direction of contact, and a level difference provided at the height of the optical accessory side connection terminals in the direction of contact. The level difference of the optical accessory side connection terminals is substantially coincident with the level difference of the camera body side connection terminals during the rotative coupling.