| 摘要 |
Disclosed is a zoom lens having a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power arranged in the mentioned order from an object side, wherein the first lens group includes a negative lens and a positive lens having at least one aspherical surface arranged in the mentioned order from the object side and satisfies a following inequality (1): <?in-line-formulae description="In-line Formulae" end="lead"?>0.4<D1/fw<0.66 (1) <?in-line-formulae description="In-line Formulae" end="tail"?> where D1 represents a distance, inside the first lens group, between a lens surface closest to an object and a lens surface closest to an image, and fw represents a focal distance with the zoom lens set to a wide-angle position.
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