Abstract: A camera body includes an imaging element, a hot shoe, and a camera controller. The imaging element is configured to convert an optical image of the subject into an electrical signal, and is configured to produce image data about the subject. The hot shoe allows the flash device to be mounted. The camera controller is configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and is configured to perform video autofocusing on the basis of this evaluation value. The camera controller is configured to control the imaging element and the flash device so that when the camera controller decides that auxiliary light is needed, and the camera controller decides that the external auxiliary light source of the flash device mounted to the hot shoe is not compatible with video autofocusing, the image data is acquired while an external main light source of the flash device intermittently emits light during the video autofocusing.

Abstract: A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 130 or image data obtained by subjecting the image data generated by the CMOS sensor 130 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, and the microcomputer 110 controls so that movable mirrors 121a and 121b to enter an optical path of an image pickup optical system after the amount of light from a subject is obtained based on the image data generated by the CMOS sensor 130, a strobe 137 emits light, and measurement results of an AE sensor 133 are obtained. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.

Abstract: A camera system includes an interchangeable lens and a camera body. The interchangeable lens has a focal adjuster including a focus lens group, an absolute position detector configured to detect the position of the focus lens group with respect to a movable range, and a relative position detector configured to detect the movement amount of the focus lens group. The camera body has a first focal detector configured to detect the focal state on the basis of a contrast value and a second focal detector configured to detect the focal state by phase difference detection method on the basis of the optical image. When the first focal detector is used for focal adjustment, a detection of the focal state is performed on the basis of only the information obtained by the relative position detector.

Abstract: An imaging apparatus includes a plurality of lenses movable along an optical axis, a plurality of drivers configured to drive the plurality of lenses, respectively, and a synchronism loss detector configured to detect a loss of synchronism of one of the plurality of drivers. The one of the plurality of drivers is a driver that drives a lens which is heaviest in the plurality of lenses.

Abstract: A camera system has an imaging optical system, an imaging component, a liquid crystal monitor, an aperture setting component, and an image display controller. The liquid crystal monitor has a first display region and a second display region. The aperture setting component adjusts the aperture in a specific period so that the actual aperture value will be a preset value. The image display controller displays, in the first display region, a reference image acquired by the imaging component under conditions in which the aperture value is the preset value, and displays, in the second display region, a comparative image acquired by the imaging component at a different timing from that of the reference image.

Abstract: The camera body includes an imaging element, a hot shoe, an internal light source, and a camera controller. The camera controller is configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and perform video autofocusing on the basis of the evaluation value. When the camera controller decides that the auxiliary light is needed, and that the flash device mounted to the hot shoe has an external auxiliary light source arranged to emit near infrared light, the internal light source emits light during the video autofocusing.

Abstract: A digital camera of the present invention includes a receiving portion 155 that receives a control signal from a remote controller, and a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 130 or image data obtained by subjecting the image data generated by the CMOS sensor 130 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, wherein when the receiving portion 155 receives the control signal from the remote controller, the microcomputer 110 controls so as to shift the digital camera to a live view mode. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.

Abstract: A camera system includes an interchangeable lens and a camera body. The camera body includes an imaging unit, a contrast detection unit, a defocusing amount detection unit, and a body microcomputer. The contrast detection unit is configured to detect a contrast value from an image signal of a subject acquired by the imaging unit, and is configured to detect the focal state of an optical image on the basis of the contrast value. The defocusing amount detection unit is configured to detect the focal state of the optical image by phase difference detection method. The body microcomputer is configured to select either the contrast detection unit or the defocusing amount detection unit on the basis of lens information on the interchangeable lens side.

Abstract: A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 133 or image data obtained by subjecting the image data generated by the CMOS sensor 133 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, wherein the microcomputer 110 controls so that, when the live view mode is set, the digital camera comes out of the live view mode, and setting information on the digital camera is displayed on the liquid crystal monitor 150, in accordance with the manipulation of the manipulation portion 140. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.

Abstract: A digital camera of the present invention enables a lens unit to be attachable/detachable with respect thereto. The digital camera of the present invention includes a plurality of display portions, a control portion that causes the plurality of display portions to selectively display the image data generated by the image pickup element or image data obtained by subjecting the image data generated by the image pickup element to predetermined processing as a moving image in real time, and a setting portion capable of switching displays of images with respect to the plurality of display portions. After the control portion causes the lens unit to perform an autofocus operation in accordance with setting of the displays of the images with respect to the plurality of display portions by the setting portion, the control portion switches the displays of the images with respect to the plurality of display portions.

Abstract: A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 133 or image data obtained by subjecting the image data generated by the CMOS sensor 133 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, wherein the microcomputer 110 controls so that, when the live view mode is set, the digital camera comes out of the live view mode, and setting information on the digital camera is displayed on the liquid crystal monitor 150, in accordance with the manipulation of the manipulation portion 140. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.

Abstract: The camera body includes an imaging element, a hot shoe, an internal light source, and a camera controller. The imaging element is configured to convert an optical image of the subject into an electrical signal, and is configured to produce image data for the subject. The hot shoe allows the flash device to be mounted. The internal light source is arranged to shine light on the subject. The camera controller is configured to calculate an evaluation value on the basis of the image data produced by the imaging element, and is configured to perform video autofocusing on the basis of the evaluation value.

Abstract: The camera system is constituted by the camera main body and the interchangeable lens, which is removably attachable to the camera main body. The camera main body has an imaging unit, a main body shake detector, a main body image blur corrector, and a body microcomputer configured to control the imaging unit, the shake detector, and the image blur corrector. The interchangeable lens has a shake detector, an image blur corrector, and a lens microcomputer configured to control the shake detector and the image blur corrector. The body microcomputer selects either the main body or lens shake detector, activates the selected shake detector, and stops the other shake detector.

Abstract: An imaging apparatus includes a plurality of lenses movable along an optical axis, a plurality of drivers configured to drive the plurality of lenses, respectively, and a synchronism loss detector configured to detect a loss of synchronism of one of the plurality of drivers. The one of the plurality of drivers is a driver that drives a lens which is heaviest in the plurality of lenses.

Abstract: A camera system that can maintain a good focus state regardless of the speed of zooming during variable proportion zooming is provided. The camera system has a control portion that, based on information on the speed of the change in the focal length, determines whether to control a focus lens drive portion in either a first control mode or a second control mode. If it determines that control is to be performed in the first control mode, then the control portion controls the focus lens drive portion so that it drives a focus lens in the direction that brings a predetermined captured object into focus based on estimated values for auto focusing that have been calculated from the image data at various positions by controlling the focus lens drive portion so that the captured object distance is moved forward and backward in the optical axis direction.

Abstract: A digital camera comprises an interchangeable lens unit and a camera body. The interchangeable lens unit is provided to form an optical image of a subject. A flash memory is configured to hold a correction coefficient table used to electrically correct distortion produced by the optical system. The camera body has a CCD image sensor, a correction coefficient acquisition part, an operation part, and a correction processor. The correction coefficient acquisition part is configured to acquire the correction coefficient table held in the flash memory. The operation part is configured to produce correction data by performing an interpolation operation or an extrapolation operation on the information obtained from the correction coefficient table. The correction processor is configured to correct distortion in the image data on the basis of information produced by the operation part.

Abstract: A camera system has an imaging optical system, an imaging component, a liquid crystal monitor, an aperture setting component, and an image display controller. The liquid crystal monitor has a first display region and a second display region. The aperture setting component adjusts the aperture in a specific period so that the actual aperture value will be a preset value. The image display controller displays, in the first display region, a reference image acquired by the imaging component under conditions in which the aperture value is the preset value, and displays, in the second display region, a comparative image acquired by the imaging component at a different timing from that of the reference image.

Abstract: In driving a target body only by one of actuators, the target body is smoothly driven. A drive unit (1) includes a stage (3), a first ultrasonic actuator (4A) for driving the stage (3) in an X direction and a second ultrasonic actuator (4B) for driving the stage (3) in a Y direction. When the stage (3) is driven only in one of the X direction and the Y direction, one of the first and second ultrasonic actuators (4A and 4B) which corresponds to the direction generates composite vibration of longitudinal direction parallel to a contact surface of the stage (3) and bending vibration perpendicular to the contact surface of the stage (3). On the other hand, the other one of the first and second ultrasonic actuators (4A and 4B) generates only longitudinal vibration parallel to the contact surface of the stage (3).

Abstract: To provide an interchangeable lens, a camera body, a camera system, and a method for controlling the same, with which a highly efficient and stable image blur correction effect can be obtained. A camera system (1) has a camera body (10) and an interchangeable lens (20) which is attachable to and detachable from the camera body (10). The camera body (10) has an imaging unit (120) for imaging a subject through the interchangeable lens (20), and a sequence microcomputer (100) capable of sending and receiving information to and from a lens microcomputer (200) and for controlling the imaging operation of an imaging unit (120).

Abstract: An imaging device disclosed herein is a device for acquiring image data about a subject, comprising an image acquisition section, a housing, a flash device, and a flash controller. The image acquisition section is configured to continuously acquire a plurality of image data from an optical image of a subject. The housing holds the image acquisition section. The flash device is configured to emit a flash of light, with which the emission angle of the flash light with respect to the housing can be varied. The flash controller is configured to control the flash device so that the emission angle of the flash light when the plurality of image data are being continuously acquired will differ for at least two image data out of the plurality of image data.