| 摘要 |
A zoom lens system includes at least three lens groups, in which the distance between at least two lens groups of the at least three lens groups is varied during zooming, the zoom lens system having a first adjustment mechanism for mechanically adjusting a first lens group in the optical axis direction upon assembly and adjustment; a second adjustment mechanism for mechanically adjusting a second lens group, which is different from the first lens group, in the optical axis direction upon assembly and adjustment; and a third adjustment mechanism for mechanically adjusting a third lens group, which is different from the first and second lens group, in the optical axis direction upon assembly and adjustment.
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