PURPOSE: To take the continuous photograph which develops the outside circumference of an object in strip form within a short time by specifying the disposition of the camera and the feed method of film.

CONSTITUTION: A camera 4 is so disposed that its optical axis 8 intersects orthogonally with the axial line 3 of the object 2 on a rotary table 1. The film loaded in the camera 4 is run in the moving direction of the image of the object 2 and a slit 14 whose lengthwise direction intersects orthogonally with the running direction of the film 11 is provided to a lens-barrel part 6. As a result of this, if the film 11 is run at a running speed S while the rotary table 1 is being rotated at a fixed speed and a shutter 10 is held in an open state, the moving speed of the image of the object front end part 2a formed on the film 11 is equal to the film running speed and therefore the photographing of the continuous static image according to the object front end part 2a is accomplished by the light passed through the slit 14 without causing any blur.