THEN pull the focusing barrel out slightly, and the lens barrel can be swung over farther to the left, to get into the close focusing range.

然后轻轻将镜头的调焦筒拉出，镜筒就可以继续向左转动以获得更近的对焦距离。

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Fourth version 1969-1979 Black lens with no "50" on barrel, no focusing lock or lever.

第四版1969 - 1979，黑色镜筒上没有“50”字样，没有对焦锁和把手。

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Fifth version 1980-95 Black lens with "50" on barrel, reintroduced focusing lever, without built in hood.

第五版1980 - 1995黑色镜，镜筒上刻有“50”字样，重新加上了对焦杆，没有内置遮光罩。

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Additionally, the WG-3's category defining Digital Microscope mode and six LED lights surrounding the lens barrel enable focusing as close as one centimeter from the subject producing bright, shadow-free macro images.

ENGADGET: Pentax expands ruggedized series with Optio WG-3, Target-exclusive WG-10

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.

ENGADGET: Sony's Cyber-shot RX1 compact camera packs a full-frame sensor, 'fits in your palm' (hands-on)