| 摘要 |
<p>Provided is a relay zoom system (ZL) comprised of a first lens group (G1) which has positive refractive power and a second lens group (G2) which has positive refractive power, in order from the subject side. Furthermore, in the relay zoom system (ZL), each of the first lens group (G1) and the second lens group (G2) is constructed from at least two positive lenses and one negative lens. When varying the magnification from a low magnification state to a high magnification state, the first lens group (G1) and the second lens group (G2) in the relay zoom system (ZL) are constructed to move along the optical axis.</p> |
