Disclosed are an image capture method and device which can reduce the image capture function start-up time of which a user is aware, even when other functions are starting-up after image capture function start-up operations have taken place. The disclosed image capture device is provided with: an image capture unit which implements image capture; a detection unit which detects start-up related operations relating to the start-up of image capture functions; and a control unit which controls the image capture unit. When the detection unit detects start-up related operations, the control unit sends a first start-up instruction to the image capture unit, and then, within a specified timing, implements at least part of an end processing for functions being started-up which are not image capture functions. Upon receiving the first activation instruction, the image capture unit implements a first start-up processing which is one part of a start-up processing for the image capture unit, and thus a speculative state is entered.