1. A surface mounting apparatus comprising: a mounting head which is movable in X and Y directions and which mounts an electronic component on a positioned board; and a board recognizing camera which is fixed to a base and which moves integrally with said mounting head, wherein a correction jig is fixed to said base, the correction jig includes a correction mark which is imaged by said board recognizing camera, and an imaging result is used to correct temporal change in an interior portion of said camera including an optical system, said correction jig is fixed to said base via a connection member, and the connection member moves said correction jig between a correction position located within an imaging range of said board recognizing camera, and a standby position located out of said imaging range.