An imaging apparatus includes an electronic viewfinder unit that includes an image display element configured to display an image, an eyepiece optical system configured to enable the image to be observed from a rear side of the imaging apparatus, and a holder unit configured to hold the eyepiece optical system and the image display element. The holder unit moves the eyepiece optical system from a retracted position in which the eyepiece optical system is retracted in a body of the electronic viewfinder unit to an observable position in which the eyepiece optical system projects from the body of the electronic viewfinder unit to the rear side from the retracted position, and moves the image display element to the rear side.

An imaging apparatus includes an electronic viewfinder unit that includes an image display element configured to display an image, an eyepiece optical system configured to enable the image to be observed from a rear side of the imaging apparatus, and a holder unit configured to hold the eyepiece optical system and the image display element. The holder unit moves the eyepiece optical system from a retracted position in which the eyepiece optical system is retracted in a body of the electronic viewfinder unit to an observable position in which the eyepiece optical system projects from the body of the electronic viewfinder unit to the rear side from the retracted position, and moves the image display element to the rear side.

A lens apparatus of the present invention includes an optical unit that moves integrally in a direction of an optical axis and a biasing unit that applies a first force and a second force to the optical unit at different positions around the optical axis. In the lens apparatus, a direction of a component of the first force in the optical axis direction and a direction of a component of the second force in the optical axis direction are opposite to each other.

A camera body includes a mount, a solid-state imaging element, a body control unit, a diopter value detection unit, a number-of-configurations storage unit, a rear display unit, and a finder unit. An interchangeable lens is attached to the mount. The body control unit counts the number of configurations by the diopter adjustment dial for each diopter value of the finder unit configured by the diopter adjustment dial and stores the number of configurations in the number-of-configurations storage unit. In a case where the diopter value of the finder unit has been configured by the diopter adjustment dial, the body control unit changes a configuration screen to be displayed on the rear display unit according to the number of configurations stored in the number-of-configurations storage unit.

A camera body includes a mount, a solid-state imaging element, a body control unit, a diopter value detection unit, a number-of-configurations storage unit, a rear display unit, and a finder unit. An interchangeable lens is attached to the mount. The body control unit counts the number of configurations by the diopter adjustment dial for each diopter value of the finder unit configured by the diopter adjustment dial and stores the number of configurations in the number-of-configurations storage unit. In a case where the diopter value of the finder unit has been configured by the diopter adjustment dial, the body control unit changes a configuration screen to be displayed on the rear display unit according to the number of configurations stored in the number-of-configurations storage unit.

A method and an apparatus to provide a service using a sensor and image recognition in a portable terminal that supports Augmented Reality (AR). The method includes determining whether the portable terminal is parallel to ground using an acceleration sensor. When the portable terminal is parallel to the ground, either a map including nearby Point Of Interest (POI) information or constellation information is displayed.

A method and an apparatus to provide a service using a sensor and image recognition in a portable terminal that supports Augmented Reality (AR). The method includes determining whether the portable terminal is parallel to ground using an acceleration sensor. When the portable terminal is parallel to the ground, either a map including nearby Point Of Interest (POI) information or constellation information is displayed.

There is provided a camera of which operability is good regardless of the brightness of the surrounding environment. The brightness of the surrounding environment is detected by a brightness detection unit provided in a camera. The contents of settings of the camera are displayed on a sub-display 18 in a situation in which the surrounding environment is bright. The contents of settings of the camera and an image representing the set state of a shutter speed dial 33 are displayed on the sub-display 18 in a case in which the surrounding environment is dark.

There is provided a camera of which operability is good regardless of the brightness of the surrounding environment. The brightness of the surrounding environment is detected by a brightness detection unit provided in a camera. The contents of settings of the camera are displayed on a sub-display 18 in a situation in which the surrounding environment is bright. The contents of settings of the camera and an image representing the set state of a shutter speed dial 33 are displayed on the sub-display 18 in a case in which the surrounding environment is dark.

An information processing apparatus includes an eyeball position estimation unit that estimates an eyeball position of a user in a pupil-corneal reflection method on the basis of a captured image including an eye of the user captured when the eye of the user looking at a display surface is irradiated with light; a discrepancy estimation unit that estimates an amount of discrepancy between an eyeball position on the display surface and a visual field center of the display surface, the eyeball position being identified on the basis of the eyeball position; and an operation instruction unit that issues an operation instruction to adjust a position of a device including the display surface on the basis of the estimated amount of discrepancy.