| 摘要 |
<p>A zoom lens which is so easily constructed as to bend an optical path and has a high zoom ratio, wide angle of view, small F value, very small aberration, high optical specification/performance, and which comprises a moving lens group B(G2) having a positive refractive power and moving only toward an object side at power varying from a wide angle end to a telescopic end, and a fixed lens group A (G1) disposed closer to the object side than the moving lens group B, having a negative refractive power and being fixed at power varying, wherein the moving lens group B comprises three lenses, a positive lens, a positive lens and a negative lens sequentially from the object side.</p> |
