| 摘要 |
Provided is a zoom lens having high optical performance over the entire zoom range. The zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power, which are provided in order from an object side to an image side. During zooming, intervals between the respective lens units change. A focal length (fW) of the entire zoom lens at a wide angle end, a focal length (f3) of the third lens unit, and a movement amount (m2) of the second lens unit during zooming from the wide angle end to a telephoto end are suitably set.
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