本发明涉及一种后组对焦光学系统、成像设备及其聚焦方法。
The invention relates to a rear-focus optical system, an imaging apparatus and a method for focusing the same.
装上镜头后(不论相机是开着还是关闭的)，相机便会获知镜头特征，包括最大光圈，哪一组对焦参数等。
When you mount a lens (whether the camera is on or off), the camera interrogates the lens for its characteristics, including maximum aperture, which one of the focusing parameters.
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