| 摘要 |
The focus adjustment device is characterized by comprising: a driver 231 that drives a focus adjustment optical system 213 to change a focus status; a focus detector 170 that detects evaluation values with respect to contrast of images to perform focus detection for a optical system; an obtaining unit 170 that obtains a maximum driving speed among speeds with which the focus adjustment optical system is able to be driven; and a controller 170 that causes the driver to perform a first driving operation in which the focus adjustment optical system is driven within a certain range and with a certain speed or to perform a second driving operation which is different from the first driving operation, wherein the controller compares the maximum driving speed and a first driving speed as a driving speed for the focus adjustment optical system during the first driving operation with each other when a peak of the evaluation values fails to be detected within the certain range as a result of performing the first driving operation, and determines based on obtained comparison result whether or not to cause the driver to perform the second driving operation subsequently to the first driving operation.
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