Patent ID: 7936986

Claim:
An image-pickup apparatus comprising: a light projection part projecting light to an object; a focus detection part detecting a focus state of an image-pickup optical system; a light-source detection part detecting information relating to a light source; and a controller generating information used for focusing control of the image-pickup optical system, wherein: when the focus detection is performed without lighting of the light projection part, the controller generates first correction information based on an information relating to the chromatic aberration amount and the information relating to the light source and generates the information used for the focusing control based on the detection result of the focus state and the first correction information; and when the focus detection is performed with lighting of the light projection part, the controller generates second correction information based on an information relating to the chromatic aberration amount and a wavelength of the light projected from the light projection part and generates third correction information based on first contrast information obtained by a signal from the focus detection part without lighting of the light projection part, second contrast information obtained by a signal from the focus detection part with lighting of the light projection part, the first correction information, and the second correction information, and the controller further generates the information used for the focusing control based on the detection result of the focus state and the third correction information.