Patent ID: 7773873
Filing Date: 2010-08-10
Classification: G03B

Abstract:
1. An image-pickup apparatus comprising: a first detector which generates first information corresponding to a contrast state of a picked-up image; a second detector which detects second information corresponding to an object distance; and a controller which performs focus processing that cyclically repeats first focus control using the first information and performs second focus control using the second information, wherein the controller performs the second focus control when a change amount of the contrast and a change amount of the object distance exceed their respective threshold values, and the controller restricts the second focus control when at least one of the change amount of the contrast and the change amount of the object distance does not exceed the respective threshold value, and wherein the controller restricts the second focus control in a case where the controller is brought into a state of allowing the second focus control but does not perform the second focus control for a predetermined time or more.