FOCUSING

Thanks to its fully automatic diaphragm, the Micro- Nikkor can be focused with maximum image bright- ness on the screen throughout the entire focusing range. The depth of field is also minimized at maxi- mum aperture, so that the image snaps in and out of focus rapidly and distinctly.

To focus, turn the focusing ring until the image on the focusing screen-appears sharp and crisp. Thanks to the internal dual-helical system, the Micro-Nikkor focuses continuously from infinity to 9-13/16 inches (25cm) at a reproduction ratio of 1:2.

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Nikon 55MM F/2B instruction manual Focusing