Focus adjustment apparatus with a size detector

摘要

In a focus position control apparatus, a control unit performs, when a size changing amount of an object image is larger than a predetermined amount during control for driving a focus lens according to a distance change of an object image in an optical axis direction based on a determination result of a determination unit, a following driving operation corresponding to the distance change as a driving control, and limits the following driving operation corresponding to the distance change when the size changing amount of the object image smaller than the predetermined amount. The predetermined amount is changed according to an imaging parameter and an object status.

主权项

1. A focus position control apparatus comprising:
a processor; the processor is configured to detect a changing amount of a detected size of an object image, wherein the object image is acquired at a shooting parameter; and a controller configured by the processor to switch a first control and a second control based on whether the changing amount is larger than a predetermined amount or not, wherein the first control is for controlling a focus position corresponding to a change in size of the object image, and the second control is a control different from the first control, and wherein the controller changes the predetermined amount based on the shooting parameter.