| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens that offers both suppressed zoom ratio reduction at finite distance and a high performance, 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 that is stationary while zooming and has positive refractive power, a second lens group that is movable while zooming and has negative refractive power, a third lens group that is either movable or stationary while zooming and has negative refractive power, a fourth lens group that is movable while zooming and has positive refractive power, a fifth lens group that is stationary while zooming and has positive refractive power. The second, third, and fourth lens groups move toward the image side when shifting focus from an infinity end to a proximity end.SELECTED DRAWING: Figure 3 |
