<p>An imaging body (1) includes: an attach/detach portion (2) to which an imaging optical system (12) is detachably attached; an imaging element (3); and a conversion optical system (4). The conversion optical system (4) is formed by a front lens system (4a, 4b) and a rear lens system (4c). The conversion optical system (4) forms an intermediate image between the attach/detach portion (2) and the imaging element (3). A shutter (5) is arranged in the vicinity of the intermediate image.</p>
