초록 ▼

At power-on, a digital camera starts to operate with a display unit off (state S1). At a subsequent half shutter press of a shutter button, a quick return mirror is flipped down and phase difference AF is performed with live view display off (state S3). At a subsequent full press of the shutter butt

At power-on, a digital camera starts to operate with a display unit off (state S1). At a subsequent half shutter press of a shutter button, a quick return mirror is flipped down and phase difference AF is performed with live view display off (state S3). At a subsequent full press of the shutter button, the digital camera enters an image capture operation. With a quick return mirror in the up position, a focusing lens is moved to its in-focus, front focus and rear focus positions, at each of which contrast in an AF area of predetermined partial portion of an image is obtained for comparison to select a position of the focusing lens with maximum contrast (state S4). Then, image data is obtained and recorded on a memory card (state S5). With the above processing, the digital camera can perform autofocusing, as circumstances demand, by a contrast AF method.

대표청구항 ▼

1. A digital camera comprising:an image sensor for capturing a subject image; a mirror movable between a first position, in an optical path from an imaging optical system to said image sensor, and a second position, withdrawn from said optical path; a driver for driving said mirror; a first detector

1. A digital camera comprising:an image sensor for capturing a subject image; a mirror movable between a first position, in an optical path from an imaging optical system to said image sensor, and a second position, withdrawn from said optical path; a driver for driving said mirror; a first detector for detecting an in-focus condition of said imaging optical system on the basis of an image signal from said image sensor; a display for displaying an image signal obtained from said image sensor; and a focus controller for, when said display provides a display, controlling said driver to move said mirror to said second position and driving said imaging optical system according to a result of detection by said first detector.