Abstract: An optical instrument having an image stabilizing function comprises an image stabilizing device comprising an image blur correction member to effect vibration suppression, a detecting device for detecting whether a part of body of a user has approached the optical instrument or not, and a control device for controlling a drive of the image stabilizing device in accordance with an output of the detecting device. Another optical instrument having an image stabilizing function comprises an image stabilizing device for effecting vibration suppression, a sight axis detection device for detecting a direction of sight axis of a user, and a control device for controlling a drive of the image stabilizing device in accordance with an output of the sight axis detection device.

Abstract: Disclosed is an image stabilizing apparatus for correcting image blur by driving at least one of a plurality of lens units constituting an objective lens such that the lens unit is decentered from an optical axis. To prevent incidence of light on an image surface from a space formed when the lens unit is driven, a light-shielding member is provided in this space.

Abstract: An image stabilizing apparatus comprises a light beam deflecting device controllable for deflecting a light beam by moving an optical member disposed in an optical path, an accelerometer for detecting an influence the optical member receives from gravity and a control device for controlling the operation of the light beam deflecting device by the use of the output of the accelerometer so as to provide image stabilization.

Abstract: An image stabilizing device for a camera includes an image stabilizing means for preventing an image blur of the camera and a control means for changing a function of the image stabilizing means in accordance with a photometry or focus mode of the camera.

Abstract: An optical apparatus comprises an optical system in which an amount of movement of an image forming plane varies according to the movement of a specific lens in the direction of an optical axis thereof, a driving unit for driving a focusing lens, a computing unit for obtaining sensitivity information concerned with an amount of movement of the image forming plane relative to a predetermined driving degree of the specific lens, a focus detector and a control unit for controlling a driving speed of the focusing lens as driven by the driving unit on the basis of focus information detected by the focus detector and sensitivity information obtained by the computing unit. The control unit causes the driving unit to drive the focusing lens at a first speed, then at a second speed which is lower than the first sped and then stops the focusing lens, the control unit varying the second speed according to the sensitivity information.