| 摘要 |
A zoom lens comprises in order from an object side, a first lens unit having a positive refractive power, and at the time of zooming from a wide angle end to a telephoto end, the first lens unit moves, and the zoom lens satisfies the following conditional expression (1). FNO(W)<1.64(1) where, FNO(W) denotes an F-number of the zoom lens at the wide angle end.
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