Zoom lens and imaging apparatus
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United States of America Patent
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Aug 22, 2017
Issued Date -
Sep 22, 2016
app pub date -
Mar 14, 2016
filing date -
Mar 17, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A zoom lens consists of, in order from the object side, a positive first lens group that is fixed during magnification change, at least two movable lens groups that are moved during magnification change, and a positive end lens group that is disposed at the most image side and is fixed during magnification change. The first lens group consists of, in order from the object side, a negative first-a lens group that is fixed during focusing, a positive first-b lens group that is moved during focusing, and a positive first-c lens group. The first-a lens group includes at least two negative lenses, where the most object-side negative lens has a meniscus shape with the convex surface toward the object side, and a first-n lens, which is at least one negative lens of the rest of the negative lenses of the first-a lens group, satisfies given condition expressions (1) to (3).
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