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ZOOM LENS SYSTEM, OPTICAL APPARATUS EQUIPPED WITH ZOOM LENS SYSTEM AND METHOD FOR ZOOMING ZOOM LENS SYSTEM
ZOOM LENS SYSTEM, OPTICAL APPARATUS EQUIPPED WITH ZOOM LENS SYSTEM AND METHOD FOR ZOOMING ZOOM LENS SYSTEM
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机译:变焦镜头系统,配备有变焦镜头系统的光学设备以及变焦镜头的方法
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摘要
A zoom lens system ZL mounted in an electronic still camera 1 etc is constructed to include, in order from an object side, a first lens group G1 having negative refractive power and a second lens group G2 having positive refractive power, in which the second lens group G2 has two cemented lenses. A distance between the first lens group G1 and the second lens group G2 changes when a lens position state changes from a wide-angle end state to a telephoto end state, thereby providing the zoom lens system exhibiting preferable optical performance, an optical apparatus including the zoom lens system and a magnification varying method using the zoom lens system.
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