Shooting method, shooting device, camera and mobile terminal

The invention provides a shooting method, a shooting device, a camera and a mobile terminal, suitable for the technical field of digital photograph. The shooting method comprises the steps that the practical size S of an object which is shot at present and the distance L between the shooting object and the camera are determined; the present focusing distance M of the camera is calculated according to the present zooming multiple, the aperture value and the screen pixel parameter Y1 of the camera; the coordinates X and Y of a touch position are obtained; an input shooting instruction is received; the practical focusing distance H is calculated according to S, L, X and Y as well as the screen pixel parameters X1 and Y1 of the camera; and the S, L, X, Y, M and H as well as the difference between M and H are recorded on a photograph. The values of parameters related to the quality of the photograph are recorded on the photograph, quality information is provided for professional photographers, and basis is provided for improving the shooting effects of the camera.