| 摘要 |
An optical apparatus is provided with a main operation member arranged to permit both a rectilinear operation and a rotational operation, a subordinate operation member arranged to be operated to vary an operating force required for operating the main operation member to a greater extent for the rectilinear operation than for the rotational operation, a first optical adjustment mechanism arranged to perform a first optical adjusting action in association with the rectilinear operation of the main operation member, and a second optical adjustment mechanism arranged to perform a second optical adjusting action in association with the rotational operation of the main operation member.
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