A projector system includes a connector attachable to a lighting wiring base mounted on a ceiling surface of a room, a housing hanging from the connector, a communicator accommodated in the housing to obtain content to be projected onto a wall surface of the room, a projection unit accommodated in the housing to emit emission light to project a picture including the content onto the wall surface, a brightness sensor to sense a brightness of the room, and a corrector to control the emission light to correct an effect of a state of the wall surface on the projected picture in accordance with the brightness of the room.

An apparatus includes a first operation member, an assigning unit configured to assign one of a plurality of functions to the first operation member, and a second operation member configured to enable a user to provide a setting relating to a specific function among the plurality of functions. The assigning unit assigns the specific function to the first operation member according to an operation of the second operation member.

A lens apparatus attachable to an imaging apparatus via an accessory, the lens apparatus includes an acquirer configured to acquire first power information indicating power available for the accessory, a determiner configured to determine second power information indicating power available for the lens apparatus based on the first power information, and a transmitter configured to transmit, to the imaging apparatus, the second power information or power information relating to the first power information and the second power information.

The processor recognizes a first act for an imaging and print instruction that combines an imaging instruction and an instruction to print an image, the first act being performed by a person to be imaged who is included in a subject and within an imaging range of a camera unit, causes the camera unit to perform an imaging operation of outputting an image required to be printed in a case where the first act is recognized, recognizes a second act for an instruction to stop printing the image required to be printed, and causes a printer unit to print the image required to be printed in a case where the second act is not recognized during a predetermined print standby period and instructs the printer unit to stop printing the image required to be printed in a case where the second act is recognized during the print standby period.

A camera built into a cylindrical housing couples to a stand with a stand member that inserts into an opening having a magnet attracted to ferromagnetic material integrated in the stand member. The stand member may couple to a bracket that holds the camera at a display or to a tripod that places the camera between the display and an end user participating in a video conference. A lens cover couples over a front face of the camera with magnetic attraction and is stored at a rear face of the camera with magnetic attraction. In various embodiments, sensors detect lens cap and/or stand member position to control camera power and/or camera visual image capture operations.

A lens control apparatus includes an operation input unit, a communication unit, and a control unit. The operation input unit is configured to accept a user operation. The communication unit is configured to perform communication with an external apparatus. The control unit is configured to perform driving control of a zoom lens in response to a zoom operation accepted by the operation input unit or a zoom control signal received by the communication unit. The control unit is also configured to selectively set a zoom position changing speed for driving control performed in response to the zoom operation and a zoom position changing speed for driving control performed in response to the zoom control signal, the zoom position changing speeds being different from each other.

An accessory that can be attached to a camera body, the camera body including a first camera-side clock terminal that outputs a first clock signal, a first camera-side data terminal that outputs a first data signal, and a third camera-side data terminal to which a third data signal is input, the accessory includes: an eighth terminal that is brought into contact with the first camera-side clock terminal; a seventh terminal that is brought into contact with the first camera-side data terminal; and a ninth terminal that is brought into contact with the third camera-side data terminal, wherein the eighth terminal is positioned between the seventh terminal and the ninth terminal.

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.

The imaging apparatus according to the present invention includes: a first operation unit having a plurality of buttons corresponding to setting items of imaging conditions, and capable of adjusting the setting items according to operation; and a second operation unit capable of performing a rotating operation and a depressing operation and setting conditions related to the setting items according to operation.

Provided are a device and a method by which high-precision auto focus (AF) processing can be performed while a focus lens or a zoom lens is being operated. An interchangeable lens acquires position information regarding a focus lens and a zoom lens at a predetermined time interval during an exposure time period of detection information acquisition pixels for use in calculation of a defocus amount (DF), and outputs the position information to an imaging device. The imaging device calculates the defocus amount (DF) by using information regarding the detection information acquisition pixels, calculates a reference focus lens position (Ref_fc) by using points, on a cam curve, corresponding to the inputted lens position information, calculates a target focus lens position (Tgt_fc) in an in-focus position, from the reference focus lens position (Ref_fc) and the defocus amount (DF), and outputs the target focus lens position (Tgt_fc) to the interchangeable lens.