Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An image capturing apparatus includes a plurality of terminals including a terminal used for electrical connection with an accessory, and a first mount portion connectable with a second mount portion on the accessory. With the accessory and the image capturing apparatus detachably attached, a first terminal is configured to output a signal from the image capturing apparatus to the accessory, a second terminal is configured to input a signal output from the accessory to the image capturing apparatus, and a third terminal is configured to supply first power to the accessory. A second signal is detected as a signal input to the second terminal when a first signal is output to the first terminal. When it is detected that the second signal is a signal changing in synchronization with the first signal, the first power is supplied to the accessory via the third terminal.

Abstract: A camera body includes a plurality of electric contacts in a first set and a second set. When a lens apparatus is mounted to the camera body, the first set of the electric contacts comes into contact with an electric contact disposed on the lens apparatus before coming into contact with the second set of electric contacts.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: A mounting apparatus on which an accessory including a first mount is mountable, comprising: a second mount that is capable of coupling to the first mount of the accessory; terminals disposed along a circumferential direction of the second mount and used for electrical connection with corresponding terminals provided on the accessory; and mount claws for engaging with claws provided in the accessory. A terminal holder has first and second stages at different positions in a direction parallel to a center-axis direction of the second mount. The terminals include a first terminal for detecting mounting of the accessory and a second terminal for supplying communication power to the accessory. The second stage is projecting toward the accessory further than the first stage in a state where the accessory is mounted on the mounting apparatus.

Abstract: A lens apparatus is mountable to a camera body. The camera body has multiple electric contacts. Of these multiple electric contacts, when mounting the lens apparatus to the camera body, electric contacts used for second communication or third communication come into contact with an electric contact provided to the lens apparatus before electric contacts used for first communication, when mounting the lens apparatus to the camera body.

Abstract: In a camera body, a VBAT terminal and PGND terminal are both disposed adjacent to a TYPE terminal. In a case where the voltage of the TYPE terminal is a voltage of a first voltage range that does not include the VBAT voltage and does not include the voltage of the PGND terminal, a camera control unit distinguishes the mounted lens apparatus to be a first lens apparatus. In a case where the voltage of the TYPE terminal is a voltage of a second voltage range that is a voltage range different from the first voltage range, does not include the VBAT voltage and does not include the voltage of the PGND terminal, the camera control unit distinguishes the mounted lens apparatus to be a second lens apparatus.

Abstract: There are provided a plurality of terminals disposed in a circumferential direction of a second mount of an image capturing apparatus. The plurality of terminals correspond to a plurality of terminals disposed in a circumferential direction of a first mount of an accessory. The plurality of terminals of the image capturing apparatus include a first terminal used to supply power for driving an internal component of the accessory, and a second terminal used to supply power for controlling communication with the accessory. The first and second terminals are disposed further in a mount direction of the accessory than the other terminals of the image capturing apparatus on a predetermined stage of the terminal holder. An inter-terminal pitch between the first and second terminals is wider than at least one pitch among inter-terminal pitches of the other terminals.

Abstract: In a mount device including a mount which an accessory is attachable to and detachable from, a plurality of terminals arranged along a circumferential direction of the mount and used for electrical connection with the accessory includes a first terminal which is used to supply driving electric power serving as a first voltage to the accessory, and a second terminal which exhibits a voltage that changes according to the accessory mounted to the mount device, wherein the second terminal is able to be set to an input state or an output state, and is set to the input state during a period in which the driving electric power is not output to the accessory via the first terminal.

Abstract: In a lens apparatus, a CS terminal is disposed adjacent to a DGND terminal, and a DCA terminal is disposed on the other side of the CS terminal from the DGND terminal. The terminals on the accessory correspond to terminals on an imaging apparatus where a CS terminal is disposed adjacent to a DGND terminal, and a DCA terminal is disposed on the other side of the CS terminal from the DGND terminal.

Abstract: A lens apparatus is mountable to a camera body. The camera body has multiple electric contacts. Of these multiple electric contacts, when mounting the lens apparatus to the camera body, electric contacts used for second communication or third communication come into contact with an electric contact provided to the lens apparatus before electric contacts used for first communication, when mounting the lens apparatus to the camera body.

Abstract: In a lens apparatus, a CS terminal is disposed adjacent to a DGND terminal, and a DCA terminal is disposed on the other side of the CS terminal from the DGND terminal. The terminals on the accessory correspond to terminals on an imaging apparatus where a CS terminal is disposed adjacent to a DGND terminal, and a DCA terminal is disposed on the other side of the CS terminal from the DGND terminal.

Abstract: A mounting apparatus on which an accessory including a first mount is mountable, comprising: a second mount that is capable of coupling to the first mount of the accessory; terminals disposed along a circumferential direction of the second mount and used for electrical connection with corresponding terminals provided on the accessory; and mount claws for engaging with claws provided in the accessory. A terminal holder has first and second stages at different positions in a direction parallel to a center-axis direction of the second mount. The terminals include a first terminal for detecting mounting of the accessory and a second terminal for supplying communication power to the accessory. The second stage is projecting toward the accessory further than the first stage in a state where the accessory is mounted on the mounting apparatus.

Abstract: A camera body includes a plurality of electric contacts in a first set and a second set. When a lens apparatus is mounted to the camera body, the first set of the electric contacts comes into contact with an electric contact disposed on the lens apparatus before coming into contact with the second set of electric contacts.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: A lens apparatus is mountable to a camera body. The camera body has multiple electric contacts. Of these multiple electric contacts, when mounting the lens apparatus to the camera body, electric contacts used for second communication or third communication come into contact with an electric contact provided to the lens apparatus before electric contacts used for first communication, when mounting the lens apparatus to the camera body.

Abstract: An image capturing apparatus on which, and from which, an accessory is mountable and dismountable includes a plurality of terminals disposed in a circumferential direction of a mount, and a terminal holder. The terminal holder has a height level difference for holding the terminals at different positions in a center-axis direction of the mount. The terminals include a first terminal configured to be used to supply power for driving an internal component of the accessory, and a second terminal configured to indicate a ground level corresponding to the first terminal. The second terminal is disposed nearer in a mount direction of the accessory than the other terminals on a predetermined stage of the terminal holder, and is connected to a corresponding one of a plurality of terminals of the accessory first among the terminals when the accessory is mounted on the image capturing apparatus.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.