| 摘要 |
A zoom lens system according to the present invention includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group, in this order from the object. The zoom lens system satisfies the following conditions:whereinfL designates the focal length of the entire zoom lens system at the long focal length extremity;D1 designates the distance, along the optical axis, from the most object-side to the most image-side lens surfaces of the first lens group; andf1 designates the focal length of the first lens group.
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