A focus control device that is capable of preventing an object intended by a user from being excluded from a focusing target. The focus control device performs focus adjustment by using one of autofocus and manual focus. When focus control is switched from the autofocus to the manual focus, and then switched to the autofocus, whether to perform focus adjustment with settings of the autofocus set before being switched to the manual focus, or with settings of the autofocus to be set after being switched from the manual focus, is controlled according to whether or not there is an object focused by the manual focus.

A focus control device that is capable of preventing an object intended by a user from being excluded from a focusing target. The focus control device performs focus adjustment by using one of autofocus and manual focus. When focus control is switched from the autofocus to the manual focus, and then switched to the autofocus, whether to perform focus adjustment with settings of the autofocus set before being switched to the manual focus, or with settings of the autofocus to be set after being switched from the manual focus, is controlled according to whether or not there is an object focused by the manual focus.

A display control apparatus, comprises: a focus detection unit configured to detect, based on an image signal obtainable from an image sensor, a focus state and reliability of the image signal; and a display control unit configured to display in a display unit, when focus adjustment is performed by a manual operation, an index that indicates the focus state that was detected by the focus detection unit, wherein the display control unit changes a display format of the index according to the reliability.

A display control apparatus, comprises: a focus detection unit configured to detect, based on an image signal obtainable from an image sensor, a focus state and reliability of the image signal; and a display control unit configured to display in a display unit, when focus adjustment is performed by a manual operation, an index that indicates the focus state that was detected by the focus detection unit, wherein the display control unit changes a display format of the index according to the reliability.

A photography system includes a digital camera and a depth and position detection device. The digital camera is configured to capture a digital image of a subject. The depth and position detection device scans the subject and determines three-dimensional locations of the subject and any other objects within the field of view. The depth and position detection device also determines locations of body points of the subject. The depth and position information can then be mapped to the digital image.

A photography system includes a digital camera and a depth and position detection device. The digital camera is configured to capture a digital image of a subject. The depth and position detection device scans the subject and determines three-dimensional locations of the subject and any other objects within the field of view. The depth and position detection device also determines locations of body points of the subject. The depth and position information can then be mapped to the digital image.

A transmission mechanism includes an output member and a worm wheel shaft configured to be connected to a power device to transmit a power of the power device to the output member. The worm wheel shaft and the output member are engaged with each other through a relative movement along an axial direction. An engagement between the worm wheel shaft and the output member limits a relative rotation between the worm wheel shaft and the output member.

A transmission mechanism includes an output member and a worm wheel shaft configured to be connected to a power device to transmit a power of the power device to the output member. The worm wheel shaft and the output member are engaged with each other through a relative movement along an axial direction. An engagement between the worm wheel shaft and the output member limits a relative rotation between the worm wheel shaft and the output member.

An image capture control apparatus comprises a touch detector being capable of detecting a touch operation, a tracking unit that tracks a tracking target in a live view image captured by an image capturing unit, and a display control unit that, in response to the touch detector detecting a movement operation of moving a touch position, carries out control to display an indicator at a position, in a display, that is based on a movement amount of the movement operation, and a control unit configured to, in response to a predetermined amount of time elapsing after the touch for making the movement operation has been released, carry out control such that a tracking target determined on the basis of the position of the indicator is tracked by the tracking unit.

A follow-focus wheel assembly includes a supporting member, a follow-focus plate, and a follow-focus wheel. The supporting member includes a supporting seat and a mounting seat formed by extending outward from the supporting seat; the follow-focus plate and the follow-focus wheel are located on two sides of the mounting seat respectively, and the follow-focus wheel passes through a through hole on the mounting seat and then connects to the follow-focus plate in a rotatable manner. The supporting member is used for connecting an external structure, and the follow-focus wheel assembly is mounted in the external structure via the supporting member, where the follow-focus wheel partially extends out of the external structure when the supporting member is connected to the external structure. The follow-focus wheel assembly has a simple and compact structure, and can be miniaturized. It meets the requirement of performing a focusing operation with a single hand.