A follow focus enabling a user to move quickly move into and out of a hard stop operation. A soft stop orientation provides haptic feedback at manually calibrated focusing settings.

A camera device calibration method according to one embodiment comprises the steps of: acquiring first data including location values of a first zoom lens and location values of a first focus lens, corresponding to the location values of the first zoom lens; setting at least two location points of the first zoom lens; acquiring at least two location values, which correspond to the location values of the first focus lens corresponding to at least two location points of the first zoom lens; acquiring second data corresponding to a value between at least two location values of the first zoom lens; and setting, in a camera including the first zoom lens and the first focus lens, at least two location values of the first zoom lens and the first focus lens when a difference value, which is acquired by comparing the first data with the second data, is within a preset threshold range.

A camera device calibration method according to one embodiment comprises the steps of: acquiring first data including location values of a first zoom lens and location values of a first focus lens, corresponding to the location values of the first zoom lens; setting at least two location points of the first zoom lens; acquiring at least two location values, which correspond to the location values of the first focus lens corresponding to at least two location points of the first zoom lens; acquiring second data corresponding to a value between at least two location values of the first zoom lens; and setting, in a camera including the first zoom lens and the first focus lens, at least two location values of the first zoom lens and the first focus lens when a difference value, which is acquired by comparing the first data with the second data, is within a preset threshold range.

A liquid lens includes a first plate including a cavity in which a conductive liquid and a non-conductive liquid are disposed; a first electrode placed under the first plate; a second electrode placed on the first plate; a second plate on the second electrode; and a third plate under the first electrode, wherein a region of the second plate, which is disposed on the conductive liquid, includes a first region having a first thickness and including an optical axis, and a second region extending from the first region and having a second thickness, and the first thickness is greater than the second thickness.

A liquid lens includes a first plate including a cavity in which a conductive liquid and a non-conductive liquid are disposed; a first electrode placed under the first plate; a second electrode placed on the first plate; a second plate on the second electrode; and a third plate under the first electrode, wherein a region of the second plate, which is disposed on the conductive liquid, includes a first region having a first thickness and including an optical axis, and a second region extending from the first region and having a second thickness, and the first thickness is greater than the second thickness.

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.

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.

A lens driving apparatus includes a holder, a metal cover, a carrier, a sensing magnet, a printed circuit board, a position sensor, a coil and at least one driving magnet. The metal cover is coupled with the holder and has an opening. The carrier is assembled to a lens assembly having an optical axis, wherein the carrier is disposed in the metal cover and is movable along a direction parallel to the optical axis. The sensing magnet is coupled with the carrier. The printed circuit board is disposed near to one of the four lateral sides of the holder. The position sensor is disposed on the printed circuit board and corresponds to the sensing magnet. The coil is disposed on an outer surface of the carrier. One of the driving magnet is disposed in the metal cover and corresponds to the coil.

An apparatus includes an acquisition unit configured to acquire a first captured image obtained by first image capturing with a first image capturing parameter and motion information about an object in the first captured image, a setting unit configured to set a second image capturing parameter, an estimation unit configured to estimate motion blur of an object in a second captured image which is obtained in a case where second image capturing is performed with the second image capturing parameter, based on the motion information and the second image capturing parameter, and a notification unit configured to issue a notification of the motion blur.

An apparatus includes an acquisition unit configured to acquire a first captured image obtained by first image capturing with a first image capturing parameter and motion information about an object in the first captured image, a setting unit configured to set a second image capturing parameter, an estimation unit configured to estimate motion blur of an object in a second captured image which is obtained in a case where second image capturing is performed with the second image capturing parameter, based on the motion information and the second image capturing parameter, and a notification unit configured to issue a notification of the motion blur.