| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens which offers a high zoom ratio and yet maintains bright lens performance from a wide angle end to a telephoto end as well as good aberration performance and which is compact shaped with reduced total length in operating and retracted positions, and to provide an image capturing device having the same.SOLUTION: A zoom lens comprises, in order from the object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having negative refractive power, and a fifth lens group having positive refractive power. When zooming from a wide angle end to a telephoto end, the first lens group and the fifth lens group are moved. The zoom lens satisfies the following conditional expressions (1), (2), (3): f/f>6.0...(1), Fno<3.5...(2), &Sgr;d/f<0.6...(3). |
