| 摘要 |
<p>A zoom Lens and an imaging apparatus A zoom lens is disclosed to comprise sequentially from an object side, a first lens group (G1) having an negative refracting power, and being movable back and forth along with an optical axis when a zooming rate is changed, a second lens group (G2) having a positive refracting power, and being movable to the object side along with the optical axis when the zooming rate is changed from a wide-end to a tele-end; and a third lens group (G3) movable back and forth along with the optical axis, and having a positive refracting power. In such zoom lens, the second lens group (G2) includes sequentially from the object side, an iris (S) one piece of convergent lens (L4) where at least a surface facing to the object side is an aspherical surface and an adhered three pieces of lenses (L5, L6, L7). Fig.1</p> |
