| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a zoom lens system, an interchangeable lens device and a camera system being small-sized and light-weight, in which aberration fluctuation involved in focusing is small, specifically aberrations are sufficiently corrected in a state of proximity object focus, so as to allow excellent optical performances in all focusing states, and an excellent blurring correction function is provided. <P>SOLUTION: In a zoom lens system, an interchangeable lens device and a camera system, a lens group arranged closest to an object has negative power, and when zooming from a wide angle end to a telephoto end at imaging, the lens group arranged closest to the object and a lens group arranged closest to an image are fixed with respect to an image surface. The lens group arranged closest to the object includes at least one lens element having positive power and at least one lens element having negative power, and there is provided an image blurring correction lens group that moves in vertical direction with respect to an optical axis so as to optically correct image blurring. <P>COPYRIGHT: (C)2012,JPO&INPIT |
