An apparatus for photographing a moving object has a velocity detector that measures a velocity of an object, at least one camera that has an image sensor and is located so as to capture the object, an operating processor that calculates a photograph point in accordance with resolution required for an object image, a camera controller that controls the camera on the basis of a detected velocity so as to photograph the object when the object passes the photograph point, and an image transmitting processor that transmits image data, obtained by the camera, outside. The operating processor calculates the photograph point by using an object-resolution conversion diagram. The object-resolution conversion diagram represents a correspondence relationship between an angle of view, a number of pixels, an object distance, and a resolution.