他用它进行手持拍摄：原本重量就轻，又被他简化得只剩下了机身和镜头。
It was for handheld work: lightweight, and stripped down to the camera body and lens.
采用该设计方法使得在确定变焦镜头的初始结构时，不但步骤简化，而且操作简单方便。
With this design method, not only the determination procedure of the initial constitution of a zoom lens is simplified, but also the operation is simple and convenient.
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