An electronic device able to automatically select one of a plurality of lenses includes a lens module, an image sensor, a focusing module, and a processor. The lens module includes a standard lens, a macro lens, and a telephoto lens. The image sensor captures images and the focusing module controls the lenses to automatically focus on the object. The processor selects the standard lens as a current lens, obtains a first focusing distance at a first moment and a second focusing distance at a second moment, and determines to switch the current lens or not to switch according to a comparison of the first and second focusing distances. The second moment is later than the first moment. A lens switching method is also provided.

Methods and apparatus for implementing a camera having a depth which is less than the maximum length of the outer lens of at least one optical chain of the camera are described. In some embodiments a light redirection device, e.g., a mirror, is used to allow a relatively long optical chain with a relatively large non-circular outer lens. In some embodiments the light redirection device has a depth, e.g., front of camera to back of camera dimension, which is less than the maximum length of the aperture of the outer lens in the aperture's direction of maximum extent. Multiple optical chains with non-circular outer lenses arranged in different directions may and in some embodiments are used to capture images with the captured images being combined to generate a composite image.

Photographing device control system, method and device are provided. The photographing device includes a manual lens. The control system includes a parameter adjustment ring(s), a motor(s) and a processor(s). The parameter adjustment ring is arranged on the manual lens, and may be rotated to adjust a lens parameter(s) of the manual lens. A motor(s) is used to drive the parameter adjustment ring to rotate; the motor rotates to different angles based on a first user instruction. The processor is used to obtain the lens parameter of the manual lens when the motor is at each angle, and calibrate a conversion relationship(s) between the rotation angle of the motor and the lens parameters of the manual lens based on each angle and corresponding lens parameter thereof. A target rotation angle of the motor is determined based on the conversion relationship and a target lens parameter(s).

The present disclosure relates to a light emission control apparatus, a light emission control method, a program, a light emission apparatus, and an imaging apparatus that make it possible to emit AF assist light with a more appropriate amount of light. A light emission unit is configured to be capable of emitting AF (Auto Focus) assist light when capturing a static image and illumination light when capturing a moving image. Then, a light-amount setting unit sets the amount of AF assist light to a light emission control unit, the light amount being obtained in accordance with a distance to an object to be focused on or specification by a user, and the light emission control unit controls light emission of the AF assist light in accordance with the setting. The present technology is applicable to, for example, an external light emission apparatus that is mountable to an imaging apparatus main body.

There are provided a variable magnification optical system and a control method thereof which are capable of relatively accurately adjusting a positional relationship between a variable magnification optical device and an imaging surface of an imaging device according to a zoom amount. A zoom lens included in the variable magnification optical device is positioned at a telephoto end and a wide angle end, and shift amounts S1 and S2, tilt angles 1 and 2, rotation angles 1 and 2, and focusing adjustment amounts 1 and 2 of the variable magnification optical device are set by a user and are stored. In a case where a zoom amount of the zoom lens is set to a desired value by the user, a shift amount corresponding to the set zoom amount is calculated by using the stored shift amounts S1 and S2. The positional relationship between the variable magnification optical device and the imaging surface of the imaging device is adjusted so as to have the calculated shift amount.

An image-capturing apparatus includes: an optical system having a variable power function; microlenses; an image sensor having pixel groups each including pixels, receiving light having passed through the optical system and the microlenses at the pixel groups, and outputting a signal based on the received light; and an image processing unit generating an image focused on one point of an object among objects at different positions in an optical axis direction, based on the sensor signal output. If a range length in the optical axis direction specified by a focal length in which the optical system focuses on one point of a target object is longer than a length based on the object, the unit generates a first image focused on one point in the range, and if the range length is smaller, the unit generates a second image focused on one point outside and one within the range.

An imaging device for evaluating focusing of light by one or more optical elements on an imaging sensor, the imaging device having one or more processors configured to compare a first value of a characteristic of a first signal from a first photoelectric conversion structure of the imaging sensor having a first light-receiving surface area and a second value of the characteristic of a second signal from a second photoelectric conversion structure of the imaging sensor having a second light-receiving surface area smaller than the first light-receiving surface area, and to determine whether focusing is achieved by the one or more optical elements.

A focus driving control unit 34 of a control unit 30 performs speed priority driving control in which a focus lens is driven to a focusing position in a driving pattern selected in advance by a user, for example, in a case in which a defocus amount of a ranging area is greater than a driving control determination threshold set in advance. In addition, the focus driving control unit 34 performs subject priority driving control in which a focus lens movement amount by which the focus lens is located at the focusing position in accordance with the defocus amount of the ranging area is set and the focus lens is driven in a case in which the defocus amount is equal to or less than the driving control determination threshold. The focus lens is driven to the focusing position in the driving pattern selected by the user. Thereafter, a focusing state can be maintained. Accordingly, it is possible to easily perform an auto-focus operation with the high degree of freedom.

An imaging device that is capable of having a fisheye lens attached to a main body, and that is capable of shooting digital images, comprising, an image sensor on which photometric domains and/or AF region are arranged, a lens communication circuit that performs communication with a lens that has been attached and acquires lens information, and a processor that detects whether or not a lens that has been attached is a circular fisheye lens based on the lens information, and, if it has been determined that the lens is a circular fisheye lens, restricts the photometric domains and/or AF regions based on an image circle of the circular fisheye lens.

The actuator device according to the present embodiment comprises: a holder; a reflective member disposed on the holder; a rigid mover coupled to the holder; a first magnet disposed on the rigid mover; a second magnet generating a repulsive force with the first magnet; and a first driving magnet for tilting the holder, wherein the first driving magnet comprises a first surface in a direction directing toward the reflective member, wherein the second magnet comprises a first surface in a direction directing toward the reflective member, wherein the first surface of the first driving magnet comprises a first region that is the most adjacent to the second magnet, and wherein a first region of the first driving magnet having a polarity different from that of the first surface of the second magnet.