Zoom lens and image pickup apparatus including the same

摘要

The maximum amount of movement DF1 of a first focus lens section during focusing, the maximum amount of movement DF2 of a second focus lens section during focusing, the focal length fLP of a lens section LP, the focal length fF2 of the second focus lens section, the focal length fLRw of a rear unit at the wide angle end, and the focal length fw of the entire system at the wide angle end are appropriately configured.

主权项

1. A zoom lens comprising, in order from an object side to an image side: a front unit that consists of a first lens unit having a negative refractive power; and a rear unit that includes at least one lens unit and has a positive refractive power over an entire zoom range, an interval between the front unit and the rear unit varying during zooming,
wherein the rear unit includes: a first focus lens section that has a positive refractive power and moves to the image side during focusing from infinity to a close range; a second focus lens section that has a negative refractive power and moves to the image side along a locus different from a locus of the first focus lens section during focusing from infinity to the close range; and a lens section LP that has a positive refractive power and is immovable during focusing, the lens section LP being arranged on the image side with respect to the second focus lens section, and the zoom lens satisfies following conditional expressions,
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