| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens having a high magnification capable of simultaneously achieving reduction in size and price while having high fidelity imaging performance.SOLUTION: A zoom lens has a first lens group G1, a second lens group G2, a third lens group G3 and a fourth lens group G4, and all the lens groups move. The second lens group G2 has a negative lens 21, a negative lens 22, a positive lens 23 and a negative lens 24, and the third lens group G3 has a positive refractive power 3a group and a negative refractive power 3b group, and the fourth lens group G4 has a biconvex positive lens 41, a biconcave negative lens 42 and a biconvex positive lens 43, and the following conditions are fulfilled. |
