Zoom lens and image pickup apparatus including the same

摘要

The zoom lens includes: a positive first lens unit; a positive second lens unit disposed in an image side of the first lens unit, at least a part of the second lens unit constituting an image stabilizing lens unit configured to move with a component perpendicular to an optical axis; the zoom lens being configured to change an interval between neighboring lens units during zooming; and an aperture stop arranged in the image side of the first lens unit, wherein a focal length of the first lens unit, a focal length of the image stabilizing lens unit, a focal length at a wide angle end of an optical system Lr arranged on the image side of the image stabilizing lens unit, and a focal length of an entire system at the wide angle end are appropriately set.

主权项

1. A zoom lens comprising, in order from an object side to an image side:
a first lens unit having a negative refractive power; a second lens unit having a positive refractive power, wherein an entirety of the second lens unit or a part of the second lens unit constitutes an image stabilizing lens unit configured to move in a direction having a component perpendicular to an optical axis for image stabilization; wherein the zoom lens being configured to change an interval between adjacent lens units during zooming; and wherein an aperture stop arranged in the image side of the first lens unit, wherein the following conditional expressions are satisfied:
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