A typical camera works by recording where light strikes the focal plane-the area onto which rays passing through a lens are captured.

一个典型的摄像机以记录光照射的焦平面上的方式工作——通过镜头被捕获的光线区域。

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It is the distance between the lens diaphragm and the image plane.

即是镜头光圈与影像平面之间的距离。

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Focal plane: The plane where light entering a lens forms a sharp image.

焦面：光线经过镜头后形成清晰影象的平面。

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Instead of converging to a point on a focal plane behind the lens, the rays spread out so as to run in a thick stream roughly parallel to each other (see chart).

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Additionally, it features a macro switching ring on the lens barrel which instantly shortens the minimum focusing distance to approximately 20cm (from image plane), allowing the camera to capture small, close-up subjects with exquisite detail.

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