| 摘要 |
A zoom lens system consisting, from the object to the image side, of a positive front focusing lens group, a negative variator lens group, a negative compensator lens group and a relay lens group is provided. The variator lens group has three single lens elements, in which a negative meniscus shaped air space is formed between the second and third single lens elements. The relay lens group is divided into first and second sub-groups with a relatively wide air space formed therebetween, each of the first and second sub-groups has a pair of separate lens elements.
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