An X-ray photography apparatus includes a photographing system and a
movement control section. The photographing system is made up of a normal
X-ray source for irradiating X rays to a subject, a small focus X-ray
source for irradiating X rays to the subject, and an X-ray detector for
obtaining an image signal by detecting X rays transmitted through the
subject. The movement control section moves and controls at least one
component from among the normal X-ray source, the small focus X-ray
source, and the X-ray detector so that the arrangement of the
photographing system is switched between a first arrangement suitable for
normal photography in which the subject is photographed employing the
normal X-ray source, and a second arrangement suitable for magnified
photography in which the subject is magnified and photographed, employing
the small focus X-ray source.