A determination device includes a processor and a storage device storing instructions that, when executed by the processor, cause the processor to: determine focus setting values of a photographing device, zoom setting values of the photographing device, and moving speeds of a movable body carrying the photographing device at various time points from a first time point to a second time point according to a time needed to change a zoom ratio of the photographing device from a first zoom ratio to a second zoom ratio, the first zoom ratio, and the second zoom ratio.

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.

A lens control apparatus that controls moving of each of the first optical element and the second optical element during focusing includes a first controller that controls driving of the first optical element to move the first optical element to a first target position according to an object distance, a second controller that controls driving of the second optical element to move the second optical element to a second target position according to the object distance, and a correction value calculator that calculates a correction value for the second target position using a difference between an actual position of the first optical element and the first target position, and focus sensitivities of the first and second optical elements and calculates the correction value using a correction limit value smaller than a maximum movable amount of the second optical element from the second target position.

A lens control unit as a control device includes a second position profile generator that generates a second target position profile indicating a target position of a second focus lens unit of a lens apparatus in driving the second focus lens unit. A trajectory shift amount calculator of the lens control unit calculates a shift between an ideal position of the second focus lens unit corresponding to a position of the first focus lens unit and a position of the second focus lens unit in the second target position profile. A correction value calculator corrects the target position of the second focus lens unit based on this shift.

A liquid lens module includes a liquid lens comprising M individual electrode sectors (where M is a positive integer of 2 or greater) and N common electrode sectors (where N is a positive integer of 1 or greater); an upper cover comprising first to M.sup.th individual terminals electrically connected to the first to M.sup.th individual electrode sectors, respectively, and exposed in a first direction perpendicular to an optical axis of an image sensor; and a lower cover configured to surround the liquid upper cover, the lower cover comprising first to n.sup.th common terminals (where 1nN) electrically connected to the first to N.sup.th common electrode sectors, respectively, and exposed in the first direction.

A control apparatus includes a calculation unit configured to perform a focus detection by a phase difference detection method based on an image signal output from an image sensor, and to calculate a defocus amount, and a focus control unit configured to control a focus lens based on the defocus amount. When a predetermined condition is satisfied, the focus control unit changes a driving speed of the focus lens based on information on a luminance or contrast of the image signal. At least one processor or circuit is configured to perform a function of at least one of the units.

Provided are an imaging device capable of assisting focusing without giving uncomfortable feeling, a focusing assistance method thereof, and a focusing assistance program thereof. In a case where manual focusing is assisted by moving an image sensor, a focus adjustment speed by an imaging lens is detected. In a case where the focus adjustment speed by the imaging lens is reduced to a threshold value or less, the assistance is started by moving the image sensor. At this time, a focusing assistance unit is brought into an in-focus state by controlling the movement of the image sensor such that the sum of the focus adjustment speed by the imaging lens and a focus adjustment speed by the movement of the image sensor is set to a speed equal to or less than the threshold value.

An image pickup apparatus includes an image sensor that photoelectrically converts an object image formed by an image pickup optical system including a zoom lens and a focus lens, a data storage that stores focus data indicating an in-focus position of the focus lens according to an object distance and a position of the zoom lens, and a wavelength acquirer that acquires a wavelength of imaging light incident on the image sensor. The focus data includes data for visible light and data according to a wavelength of infrared light. The wavelength acquirer acquires includes the wavelength of the imaging light using the focus data, the object distance, the position of the zoom lens, and a position of the focus lens when the image pickup optical system is in focus in a state where the visible light and the infrared light can enter the image sensor.

An imaging device stores a focal length and a position of a focus lens in a storage unit in a case in which a focal state is determined to be a focus state in which a subject is in focus and at least one of the imaging device or the subject is determined to be stationary; generates tracking data for changing the position of the focus lens according to a change in focal length, using a plurality of stored focal lengths and a plurality of stored positions of the focus lens; and performs a zoom tracking control using the generated tracking data.

Provided are an imaging device capable of assisting focusing without giving uncomfortable feeling, a focusing assistance method thereof, and a focusing assistance program thereof. In a case where manual focusing is assisted by moving an image sensor, a focus adjustment speed by an imaging lens is detected. In a case where the focus adjustment speed by the imaging lens is reduced to a threshold value or less, the assistance is started by moving the image sensor. At this time, a focusing assistance unit is brought into an in-focus state by controlling the movement of the image sensor such that the sum of the focus adjustment speed by the imaging lens and a focus adjustment speed by the movement of the image sensor is set to a speed equal to or less than the threshold value.