Patent ID: 8477231

Claim:
An image sensing apparatus comprising: image sensing means including an image sensor having a plurality of image sensing pixels for photoelectrically converting an object image formed via an imaging lens to generate an image signal, and a plurality of focus detection pixels discretely arranged between the plurality of image sensing pixels; shift detection means for detecting a shift amount between images obtained by a plurality of image sensing operations using signals of the image sensing pixels contained in image signals obtained by the plurality of image sensing operations that are continuously obtained by said image sensing means and shifted in position from each other; combining means for combining signals of the focus detection pixels contained in the images obtained by the plurality of image sensing operations on the basis of the shift amount detected by said shift detection means; and focus adjustment means for adjusting a focus of the imaging lens by using signals of the focus detection pixels before being combined by said combining means, and signals of the focus detection pixels that are combined by said combining means.