| 摘要 |
A focus detection apparatus includes an image pickup element including first and second pixels that detect light beams passing through different exit pupils in an image pickup optical system, an estimating unit that estimates a moving charge amount between the first and second pixels using first and second luminance signals, a correcting unit that corrects the first and second luminance signals based on an estimation result, a defocus amount calculating unit that obtains a defocus amount by using correction values of the first and second luminance signals, and a focus detecting unit that performs focus detection of a phase difference method using the defocus amount, and the moving charge amount is a charge amount which moves from one to the other of the first and second pixels as a charge amount accumulated in the one of the pixels comes close to a saturated charge amount. |
