In a multipoint autofocus system in which a focus state of objects at different positions in a plurality of focus detection zones in an image surface is detected, and thereafter, one of pieces of information on the focus state thus detected is selected, so that a focusing optical system is moved in accordance with the selected focus data, provision is made of a judging apparatus for judging the contrast of the detected object in the focus detection zones, and a controller for selecting data representing the shortest focus from among the focus data of the objects in the focus detection zones in which the judged object contrast is higher than a predetermined value.