A camera includes an imaging device; a phase difference detection unit configured to, in parallel with receipt of the light from the subject by the imaging device, perform phase difference detection using the light to detect a defocus amount of the subject; a focus lens group; a body control section configured to move the focus lens group based on the defocus amount detected by the phase difference detection unit to bring the subject into focus; and an image display section for selecting a subject to be in focus from subjects included in an image signal. The body control section is configured to, when the subject to be in focus is selected, move the focus lens group to bring the selected subject into focus. The body control section adjusts a focusing time depending on the defocus amount detected before the movement of the focus lens group.