| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens having a compact arrangement, with a small F-number, or in other words, with a large aperture, which is a zoom lens with high zooming, and favorable aberration performance.SOLUTION: A zoom lens includes, in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, the first lens group includes, in order from an object side, a first lens having a negative refractive power and a second lens having a positive refractive power, and the third lens group includes, in order from an object side, a first lens component having a positive refractive power, a second lens component having a negative refractive power, and a third lens component, wherein the following conditional expressions (1), (2), and (3) are satisfied: 1.3<|f/f|<5 (1), &Sgr;d/f<0.42 (2), and Fno(W)<2.5 (3). |
