A camera body includes a DCL terminal, a DLC terminal, and a LCLK terminal, that perform communication with a lens apparatus by a first voltage, or a second voltage that differs from the first voltage. The camera body also includes a DLC2 terminal that is only used when communication using the DCL terminal, DLC terminal, and LCLK terminal is performed by the first voltage. The DLC2 terminal is disposed adjacent to the LCLK terminal.