Abstract: An optical apparatus including camera and lens apparatuses detachable from each other, in which the lens apparatus includes an optical system, a driver driving a focus lens unit of the optical system, a detector detecting a focus lens unit position, a storage storing the focus lens unit position, a registering operator causing the storage to store the focus lens unit position as a registered position, a recall operator causing the driver to drive the focus lens unit to the registered position, and a lens communicator communicating with the camera apparatus.

Abstract: An optical apparatus evaluating method includes the steps of acquiring first data on a performance of an optical apparatus, which changes along with use of the optical apparatus, acquiring second data on a reference performance of the optical apparatus, and evaluating the performance of the optical apparatus using the first data and the second data.

Abstract: A lens apparatus connected to a camera, includes: a focus lens; a driving unit which drives the focus lens; an operation input unit; a mode switcher that switches between first and second modes relating to selection between AF and MF and a selection of an operation target of the operation input unit, and a controller, in which the controller, in the first mode, controls the driving unit based on an input from the operation input unit and controls a driving of the focus lens unit in MF, and in which the controller, in the second mode, outputs a control signal to change image pickup parameter based on input from the operation input unit, controls the driving unit in AF based on an AF control signal input from the camera when a set value input from the camera is AF-executable, and does not perform AF when the set value is AF-not-executable.

Abstract: An optical apparatus including camera and lens apparatuses detachable from each other, in which the lens apparatus includes an optical system, a driver driving a focus lens unit of the optical system, a detector detecting a focus lens unit position, a storage storing the focus lens unit position, a registering operator causing the storage to store the focus lens unit position as a registered position, a recall operator causing the driver to drive the focus lens unit to the registered position, and a lens communicator communicating with the camera apparatus.

Abstract: A control apparatus includes a first acquiring unit configured to acquire a hyperfocal length of a lens apparatus that is attachable to, detachable from, and communicable with an image pickup apparatus, using information acquired by communication between the lens apparatus and the image pickup apparatus, and a second acquiring unit configured to acquire a position of a focus lens in the lens apparatus according to the hyperfocal length.

Abstract: A lens barrel includes a detecting unit that detects a position of an optical element in an optical axis direction, a driving unit that drives so as to change the position of the optical element in the optical axis direction, and a memory that stores setting information about the position of the optical element in the optical axis direction. The lens barrel is switchable between a storage mode for storing setting information about a first position of the optical element in the memory, and a reproduction mode in which the driving unit transfers the position of the optical element to the first position. Setting information about a position of the optical element is repeatedly storable in the memory in the storage mode. Setting information about a position of the optical element is prohibited from being stored in the memory in the reproduction mode.

Abstract: A lens apparatus includes an exterior unit incorporating a lens unit, and an operation unit arranged on the exterior unit, on which a touch operation is performed to control at least one controlled unit. The operation unit has a round shape and includes a detection unit configured to detect a clockwise direction touch operation and a counterclockwise direction touch operation.

Abstract: An image pickup apparatus attachable to and detachable from a lens apparatus includes an image sensor, an acquiring unit configured to acquire a hyperfocal length of the lens apparatus, and a setting unit configured to enable a user to change a diameter of a permissible circle of confusion for acquiring the hyperfocal length.

Abstract: A control apparatus includes a first acquiring unit configured to acquire a hyperfocal length of a lens apparatus that is attachable to, detachable from, and communicable with an image pickup apparatus, using information acquired by communication between the lens apparatus and the image pickup apparatus, and a second acquiring unit configured to acquire a position of a focus lens in the lens apparatus according to the hyperfocal length.

Abstract: The rotation detection apparatus including an annular member, a scale member having flexibility and being fixed to a circumferential portion of the annular member, and a detector facing the scale member and configured to detect relative rotation between the scale member and the detector. The circumferential portion of the annular member includes multiple convex portions and multiple concave portions along a circumferential direction of the annular member. The scale member is in contact with the multiple convex portions. Both ends, in the circumferential direction, of the scale member are fixed to the circumferential portion.

Abstract: An optical apparatus evaluating method includes the steps of acquiring first data on a performance of an optical apparatus, which changes along with use of the optical apparatus, acquiring second data on a reference performance of the optical apparatus, and evaluating the performance of the optical apparatus using the first data and the second data.

Abstract: A lens apparatus includes an exterior unit incorporating a lens unit, and an operation unit arranged on the exterior unit, on which a touch operation is performed to control at least one controlled unit. The operation unit has a round shape and includes a detection unit configured to detect a clockwise direction touch operation and a counterclockwise direction touch operation.

Abstract: An optical apparatus including a first operation portion operable to adjust a first optical parameter, a second operation portion operable to adjust the first optical parameter and a second optical parameter different from the first optical parameter. In the optical apparatus, an adjustment amount of the first optical parameter per unit rotation angle of the first operation portion and an adjustment amount of the first optical parameter per unit rotation angle of the second operation portion are different from each other.

Abstract: A driving apparatus attachable to and detachable from a lens apparatus, including a zoom lens unit configured to change a focal length and an operation ring configured to be rotated to move the zoom lens unit includes a controller configured to perform control of a velocity at which the operating ring is rotated, based on a designated velocity; and a detector configured to detect a detected member on the operation ring. The detector is configured to detect the detected member having a structure to provide information on which of a first end region, a second end region, and an intermediate region between the first end region and the second end region where the zoom lens unit is located, and output the information. The controller is configured to perform the control based on the output information from the detector.

Abstract: The vibration-type-motor driving apparatus includes a vibration-type motor including a vibrator on which vibration is excited by an electro-mechanical energy conversion element, a shaft that supports the vibrator, and a rotor that contacts the vibrator to be rotated thereby. A first end portion of the shaft is moved with the vibration of the vibrator. The apparatus further includes a housing that houses therein the motor, and a first elastic member that contacts the first end portion of the shaft and is deformable in a direction in which the first end portion vibrates. The first elastic member transfers heat of the shaft to the housing or another member provided inside the housing.

Abstract: The rotation detection apparatus including an annular member, a scale member having flexibility and being fixed to a circumferential portion of the annular member, and a detector facing the scale member and configured to detect relative rotation between the scale member and the detector. The circumferential portion of the annular member includes multiple convex portions and multiple concave portions along a circumferential direction of the annular member. The scale member is in contact with the multiple convex portions. Both ends, in the circumferential direction, of the scale member are fixed to the circumferential portion.

Abstract: An optical apparatus including a first operation portion operable to adjust a first optical parameter, a second operation portion operable to adjust the first optical parameter and a second optical parameter different from the first optical parameter. In the optical apparatus, an adjustment amount of the first optical parameter per unit rotation angle of the first operation portion and an adjustment amount of the first optical parameter per unit rotation angle of the second operation portion are different from each other.

Abstract: An image generating apparatus includes a first generator configured to obtain a first image using a first camera with a first angle of view, a second generator configured to obtain a second image using a second camera with a second angle of view wider than the first angle of view, and a generator configured to generate an observation image using the first image and the second image. The observation image is observable as a double image in which the first image and the second image are superimposed on each other in an area that contains a center of the first image.

Abstract: The lens drive adapter is detachably attachable to a lens barrel on which an operation member and a lens electric contact portion are provided. The adapter includes a drive unit including a drive member configured to transmit a driving force to the operation member, an adapter electric contact portion configured to contact the lens electric contact portion to be electrically connected therewith, and two adapter coupling portions configured to couple with the lens barrel at its two circumferential locations to fix the adapter to the lens barrel. The adapter electric contact portion is provided, in a first direction corresponding to an optical axis direction of the lens barrel, at a position different from that of the drive member and between the two adapter coupling portions.

Abstract: A lens accessory (1) is detachably attached to a lens barrel (2), and includes a first holder (104) and a second holder (105) for holding the lens barrel, an operation member (102) that moves at least one holder of the first holder and the second holder between a first position and a second position, and a biasing mechanism (110) that applies a biasing force to the at least one holder so as to hold the lens barrel, the biasing mechanism includes a first biasing member and a moving member that moves the at least one holder from the first position to the second position according to an operation of the operation member via the first biasing member, and when the at least one holder contacts the lens barrel, the first biasing member is displaced by the moving member.