| 摘要 |
An image pickup lens includes an optical system that includes a magnification variable lens used for a magnification variation, and a focus lens configured to adjust an in-focus state, a wide attachment lens being configured to change an enlargement ratio of the image pickup lens and attachable to the optical system, and a manipulator manipulated so as to instruct driving of the magnification variable lens. A moving amount of the magnification variable lens per a predetermined manipulated amount of the manipulator when the wide attachment lens is attached is smaller than that when the wide attachment lens is not attached.
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