| 摘要 |
Provided is a lens apparatus including: an image pickup optical system including a focus lens and a zoom lens; a focus detector for detecting a focus state of the image pickup optical system; a defocus amount calculation unit for calculating a defocus amount based on a result of a detection performed by the focus detector; a driving amount calculation unit for calculating a driving amount necessary to drive the focus lens to a focus position based on the defocus amount calculated by the defocus amount calculation unit; and a controller for controlling a driving of the focus lens, in which the controller controls a driving speed of the focus lens depending on the defocus amount calculated by the defocus amount calculation unit and the driving amount calculated by the driving amount calculation unit.
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