Abstract: The accessory is detachably attachable to an image capturing apparatus. The accessory includes a communicator configured to communicate with the image capturing apparatus in multiple communication modes, and a communication mode setter configured to set one of the multiple communication modes which corresponds to command information received from the image capturing apparatus as a use communication mode used to communicate with the image capturing apparatus. The communication mode setter is configured to set the use communication mode corresponding to the command information in response to reception of the command information and reception of first correspondence information different from the command information and in correspondence with the command information, from the image capturing apparatus.

Abstract: The accessory is detachably attachable to an image capturing apparatus. The accessory includes a communicator configured to communicate with the image capturing apparatus in multiple communication modes, and a communication mode setter configured to set one of the multiple communication modes which corresponds to command information received from the image capturing apparatus as a use communication mode used to communicate with the image capturing apparatus. The communication mode setter is configured to set the use communication mode corresponding to the command information in response to reception of the command information and reception of first correspondence information different from the command information and in correspondence with the command information, from the image capturing apparatus.

Abstract: An interchangeable lens attachable to a camera body includes an image pickup optical system configured to form an optical image of an object, and a controller configured to start initializing an optical element included in the image pickup optical system so as to move the optical element to a predetermined position when the controller receives a first signal that commands a start of an initialization from the camera body, and configured to start initializing the optical element after the controller receives identification information from the camera body and a period elapses for which the camera body consumes more than a predetermined amount of power when the controller does not receive the first signal from the camera body.

Abstract: An optical apparatus includes a control unit configured to perform control to change power consumed by a lens unit or operation state of an actuator of the lens unit during processing of an image signal obtained from an image pickup element according to a noise tolerance of a camera and a set state of the camera, such as an ISO speed rating.

Abstract: The present invention relates to a camera system. The system includes a selector configured to select one of a still image shooting mode and a movie shooting mode, and a communication unit employing a plurality of communication methods by which communication between an interchangeable lens and a camera body is performed. If the still image shooting mode is selected by the selector and a lens information request command is sent from the camera body to the interchangeable lens, the communication unit operates such that information on the interchangeable lens is sent from the interchangeable lens to the camera body. If the movie shooting mode is selected by the selector, the communication unit operates such that the information on the interchangeable lens is sent from the interchangeable lens to the camera body even without the lens information request command being sent from the camera body to the interchangeable lens.

Abstract: An optical apparatus includes a control unit configured to perform control to change power consumed by a lens unit or operation state of an actuator of the lens unit during processing of an image signal obtained from an image pickup element according to a noise tolerance of a camera and a set state of the camera, such as an ISO speed rating.

Abstract: An optical apparatus includes a control unit configured to perform control to change power consumed by a lens unit or operation state of an actuator of the lens unit during processing of an image signal obtained from an image pickup element according to a noise tolerance of a camera and a set state of the camera, such as an ISO speed rating.

Abstract: The present invention relates to a camera system. The system includes a selector configured to select one of a still image shooting mode and a movie shooting mode, and a communication unit employing a plurality of communication methods by which communication between an interchangeable lens and a camera body is performed. If the still image shooting mode is selected by the selector and a lens information request command is sent from the camera body to the interchangeable lens, the communication unit operates such that information on the interchangeable lens is sent from the interchangeable lens to the camera body. If the movie shooting mode is selected by the selector, the communication unit operates such that the information on the interchangeable lens is sent from the interchangeable lens to the camera body even without the lens information request command being sent from the camera body to the interchangeable lens.

Abstract: An optical apparatus includes a control unit configured to perform control to change power consumed by a lens unit or operation state of an actuator of the lens unit during processing of an image signal obtained from an image pickup element according to a noise tolerance of a camera and a set state of the camera, such as an ISO speed rating.

Abstract: An optical apparatus is disclosed which can control a position of a driven member with precision using a simple control algorithm. The optical apparatus includes an actuator, a driven member, a transmission mechanism for transmitting a driving force from the actuator to the driven member, a first detector for detecting driving of the actuator and for outputting a signal corresponding to a detection result, a second detector for detecting driving of the driven member and for outputting a signal corresponding to a detection result, and a controller for controlling the actuator, wherein the controller determines, after activating the actuator, one of the first and second detectors which the one outputs a signal corresponding to a predetermined driving amount earlier, and controls the actuator based on the signal from the one that has been determined.

Abstract: An optical apparatus is disclosed which can control a position of a driven member with precision using a simple control algorithm. The optical apparatus includes an actuator, a driven member, a transmission mechanism for transmitting a driving force from the actuator to the driven member, a first detector for detecting driving of the actuator and for outputting a signal corresponding to a detection result, a second detector for detecting driving of the driven member and for outputting a signal corresponding to a detection result, and a controller for controlling the actuator, wherein the controller determines, after activating the actuator, one of the first and second detectors which the one outputs a signal corresponding to a predetermined driving amount earlier, and controls the actuator based on the signal from the one that has been determined.

Abstract: A position control device arranged to store a stop position of a movable lens member and, after the lens member is moved from the stop position to an arbitrary position, to automatically move the lens member to the stored stop position includes a first encoder which divides a movable range of the lens member into a plurality of areas and detects one of the areas in which the stored stop position is located and a second encoder which outputs pulses according to the movement of the lens member at a finer rate of resolution than the resolution of the first encoder. In the position control device, information on the area detected by the first encoder and the number of pulses detected by the second encoder as a position within the detected area is stored as the information on the stored stop position. The position control device compares the output of the first encoder and that of the second encoder with the stored information in moving the lens member to the stored stop position.

Abstract: A driving control device includes a driving direction storing part for storing a driving direction of a driven body, a position detecting circuit for detecting a position of the driven body, and an amount-of-driving varying part for, when a direction of the present driving of the driven body differs from a direction of the last driving of the driven body stored in the driving direction storing part, varying an amount of driving of the driven body according to the position of the driven body detected by the position detecting circuit.

Abstract: An optical apparatus having the image blur correcting function has control means for effecting first drive control for moving optical means to correct image vibration and second drive control for moving the optical means for focus adjustment, and varying means for effecting 1) to make the manner of the first control differ between a case where the first control is effected in parallel with the second control and a case where the first control is effected without the second control being effected in parallel (to change (lengthen) the execution cycle of image blur correction control to thereby prevent an image blur correction control routine from being repetitively executed), or 2) to make the manner of the second control differ between a case where the second control is effected in parallel with the first control and a case where the second control is effected without the first control being effected in parallel (specifically, to change the control characteristics of driving velocity (the deceleration characte

Abstract: A focus adjusting apparatus comprises a motor serving as a drive source, a focusing unit which is driven by the motor and has at least a focusing lens, a focus detecting device which performs focus detection, an area setting device which sets a first area and a second area in an area in which the focusing unit is movable, a position detecting device which detects whether the focusing unit is located within the first area, and a motor control device which, when the focusing unit is located within the first area and the first area and the second area are set by the area setting device, forcibly drives the motor until the focusing unit moves out of the first area, and, then, drives and controls the motor on the basis of a result of focus detection performed by the focus detecting device in such a manner that the focusing unit performs a focus adjusting operation within the second area.

Abstract: The present invention provides a lens driving device, such as an automatic focusing device, which is arranged to detect a difference (the amount of overrun) between a given target amount of driving of a lens and an amount in which the lens is actually driven in a lens driving cycle, correct the next target amount of driving of the lens according to data formed by the accumulation of difference information on the detected difference, and drive the lens by the target amount corrected in this manner, thereby effecting lens driving which takes the past amount of overrun into account.

Abstract: An optical apparatus includes a driving part for driving an optical member such as a lens or the like to move along its optical axis, a rotary operation member arranged to determine the moving direction of the optical member by the rotating direction of the rotary operation member, a switching part arranged to permit switching a relationship between the rotating direction of the rotary operation member and the moving direction of the optical member, and a control part arranged to control the driving part to cause the optical member to move in one of two opposite directions according to the rotating direction of the rotary operation member and the switching position of the switching part.