| 摘要 |
A zoom lens includes, in order from an object side to an image side, a first lens unit of negative refractive power, a second lens unit of positive refractive power, and a third lens unit of positive refractive power. The zoom lens changes the distances between the lens units during zooming. The following condition is satisfied: 0.3f1 |/fT where f1 is a focal length of the first lens unit, and fT is a focal length of the zoom lens at a telephoto end.
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