An image capturing apparatus comprising a second mount configured to allow coupling to a first mount included in an accessory (200, 400, 500), the accessory being mountable on and dismountable from the image capturing apparatus by rotating relatively a plurality of first claws of the accessory (200, 400, 500) and a plurality of second claws of the image capturing apparatus, wherein the second mount includes a plurality of terminals disposed in a circumferential direction of the second mount and configured to be used in electrical connection, and a terminal holder configured to hold the plurality of terminals, the terminal holder has a height level difference for holding the plurality of terminals at different positions in a center-axis direction of the second mount, the plurality of terminals include a first terminal configured to be used to supply power for driving an internal mechanical drive unit of the accessory (200, 400, 500), and a second terminal configured to be used to supply communication control power, which is communication power used mainly in communication control, from the body of the image capturing apparatus to the accessory, wherein the terminal holder has a first stage and a second stage at different positions in the center-axis direction, in a state where the accessory (200, 400, 500) is mounted on the image capturing apparatus, the second stage projects toward the accessory in the center-axis direction further than the first stage, the first stage is located nearer than the second stage in a mount direction of the accessory, the first terminal and the second terminal are disposed on the second stage of the terminal holder, among the plurality of terminals, the first terminal and the second terminal are disposed adjacent to each other on the terminal holder and are disposed further in the mount direction of the accessory than the other terminals of the plurality of terminals on the second stage of the terminal holder, wherein the second terminal is disposed further than the first terminal in the mount direction of the accessory on the second stage, and an inter-terminal pitch between the first terminal and the second terminal is wider than at least one pitch among inter-terminal pitches of terminals other than the first terminal and the second terminal. the second mount includes a plurality of terminals disposed in a circumferential direction of the second mount and configured to be used in electrical connection, and a terminal holder configured to hold the plurality of terminals, a plurality of terminals disposed in a circumferential direction of the second mount and configured to be used in electrical connection, and a terminal holder configured to hold the plurality of terminals, the terminal holder has a height level difference for holding the plurality of terminals at different positions in a center-axis direction of the second mount, the plurality of terminals include a first terminal configured to be used to supply power for driving an internal mechanical drive unit of the accessory (200, 400, 500), and a second terminal configured to be used to supply communication control power, which is communication power used mainly in communication control, from the body of the image capturing apparatus to the accessory, wherein the terminal holder has a first stage and a second stage at different positions in the center-axis direction, in a state where the accessory (200, 400, 500) is mounted on the image capturing apparatus, the second stage projects toward the accessory in the center-axis direction further than the first stage, the first stage is located nearer than the second stage in a mount direction of the accessory, the first terminal and the second terminal are disposed on the second stage of the terminal holder, among the plurality of terminals, the first terminal and the second terminal are disposed adjacent to each other on the terminal holder and are disposed further in the mount direction of the accessory than the other terminals of the plurality of terminals on the second stage of the terminal holder, wherein the second terminal is disposed further than the first terminal in the mount direction of the accessory on the second stage, and an inter-terminal pitch between the first terminal and the second terminal is wider than at least one pitch among inter-terminal pitches of terminals other than the first terminal and the second terminal.