<p>An imaging apparatus includes: a zoom lens unit (100) that forms image light on an imaging unit (120); a zoom ring (200) that is provided around the zoom lens unit (100) and is to be manually rotated; a rotation detection unit (200) that amplifies a rotation angle of the zoom ring (200), detects the amplified rotation angle, and outputs a detection signal; and a control unit (140) that controls a zoom ratio by driving the zoom lens unit (100) based on the detection signal of the rotation detection unit (300).</p>
