A method for capturing an image with an electronic handheld device (1) equipped with a camera unit (2) and capture means (3) for triggering an image capture, said electronic handheld device (1) further comprising power supplying means (4) connected to said camera unit, and at least one additional component (5) also connected to said power supplying means (4) through a DC/DC converter (11), said method comprising a first step (B) for detecting actuation of capture means (3), and a second step (C) for capturing image once actuation of capture means has been detected. According to the invention, said method further comprises an intermediate step (D) for switching said DC/DC converter (11) off for at least the duration of the second step (C).