Image pickup apparatus with moving image and still image focus control based on changing threshold value

摘要

In an image pickup apparatus which permits switching between a moving-image shooting mode and a still image shooting mode and is provided with an automatic focusing device for focus adjustment by detecting a high frequency component of a video signal to use it as a focus evaluating signal, the focusing action of the automatic focusing device is arranged to be restarted when the moving-image shooting mode is switched to the still-image shooting mode.