Zoom lens and optical apparatus equipped therewith

Details Zoom lens and optical apparatus equipped therewith Zoom lens and optical apparatus equipped therewith

2011-05-10

2011-05-10

Spector, David N (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S686000

Reexamination Certificate

active

07940472

ABSTRACT:
A zoom lens is provided with comprising a plurality of lens groups including, in order from an object side, a first lens group G1having positive refractive power, a second lens group G2having negative refractive power, a third lens group G3, and a fourth lens group G4, the third lens group G3including, in order from the object side, a first positive lens of the third lens group, a negative lens of the third lens group, and a second positive lens of the third lens group, and a given conditional expression being satisfied, thereby excellently correcting chromatic aberration in a farther away shooting range, capable of having excellent optical performance with being compact.

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