| 摘要 |
A zoom lens comprising a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, a third lens group (G3) having positive refractive power, a fourth lens group (G4) having negative refractive power, and a fifth lens group (G5) having positive refractive power which are arranged in order from the object side, wherein by moving the first lens group (G1), the second lens group (G2), the third lens group (G3), the fourth lens group (G4) and the fifth lens group (G5) along an optical axis such that the distance between the first lens group (G1) and the second lens group (G2), the distance between the second lens group (G2) and the third lens group (G3), the distance between the third lens group (G3) and the fourth lens group (G4) and the distance between the fourth lens group (G4) and the fifth lens group (G5) change, magnification is changed from a wide-angle end state to a telephoto end state, and the following conditional expression is satisfied. 2.30<f5/d4w<3.60 |
