A focus control method comprising; a focus control step of carrying out auto focusing control of a digital camera having an image sensor driven by a rolling shutter, the image sensor having a plurality of autofocusing areas with different charge accumulation timings and equal charge accumulation period located at a plurality of positions read out in a rolling shutter mode by sensing a plurality of images of an object while continuously moving a position of a focusing lens at a constant velocity and determining in-focus positions of each of the auto focusing areas, characterized by comprising: a first acquisition step (S3-S8) of acquiring read times, each of which is a midpoint between a charge accumulation start time (Ts1, Ts2, Ts3) and a read completion time (Te1, Te2, Te3) of finishing reading accumulated charge as image signals from the each of the auto focusing areas; a second acquisition step of acquiring a focusing lens position (Pe) and a time (Te) at which the focusing lens position (Pe) is acquired; an evaluation value calculation step of calculating evaluation values that represent degrees of focused states of the respective auto focusing areas based on the obtained image signals; an in-focus position calculation step of calculating in-focus positions of the focusing lens of the respective auto focusing areas based on the focusing lens position acquired in said second acquisition step and the evaluation values of the respective auto focusing areas that are calculated in said evaluation value calculation step; a correction step of correcting the in-focus positions of the respective auto focusing areas based on the read times of image signals of the respective auto focusing areas that are acquired in said first acquisition step, the focusing lens position and time that are acquired in said second acquisition step, the constant velocity of the focus lens and the in-focus positions of the auto focusing respective areas calculated in said in-focus position calculation step; and an in-focus position determination step of determining an in-focus position of the focusing lens based on the in-focus positions that are corrected in said correction step. a first acquisition step (S3-S8) of acquiring read times, each of which is a midpoint between a charge accumulation start time (Ts1, Ts2, Ts3) and a read completion time (Te1, Te2, Te3) of finishing reading accumulated charge as image signals from the each of the auto focusing areas; a second acquisition step of acquiring a focusing lens position (Pe) and a time (Te) at which the focusing lens position (Pe) is acquired; an evaluation value calculation step of calculating evaluation values that represent degrees of focused states of the respective auto focusing areas based on the obtained image signals; an in-focus position calculation step of calculating in-focus positions of the focusing lens of the respective auto focusing areas based on the focusing lens position acquired in said second acquisition step and the evaluation values of the respective auto focusing areas that are calculated in said evaluation value calculation step; a correction step of correcting the in-focus positions of the respective auto focusing areas based on the read times of image signals of the respective auto focusing areas that are acquired in said first acquisition step, the focusing lens position and time that are acquired in said second acquisition step, the constant velocity of the focus lens and the in-focus positions of the auto focusing respective areas calculated in said in-focus position calculation step; and an in-focus position determination step of determining an in-focus position of the focusing lens based on the in-focus positions that are corrected in said correction step.