Patent ID: 8200080

Claim:
An image sensing apparatus that has a plurality of focus state detection areas and a plurality of photometry areas, comprising: a defocus amount obtaining unit that obtains a defocus amount of each of the focus state detection areas; a photometry unit that obtains a photometric value of each of the photometry areas; and a determination unit that determines a weighting coefficient for each of the photometry areas, wherein the plurality of photometry areas includes a first photometry area that is disposed in a position corresponding to any of the plurality of focus state detection areas, and for which the weighting coefficient is determined using a defocus amount of the corresponding focus state detection area, and a second photometry area for which the weighting coefficient is determined, using the weighting coefficient for the first photometry area or the defocus amount of the focus state detection area corresponding to the first photometry area, and the second photometry area includes one or more photometry areas, and the number of photometry areas for obtaining photometric values in a field area that is below a first area for obtaining a photometric value in the first photometry area is greater than the number of photometry areas for obtaining photometric values in a field area that is above the first area.