Pentax smc FA 20-35mm F4 AL 操作指南

The zoom lens has a focusing ring at the front and a zoom ring behind it.
Turn the zoom ring to set the desired angle of view (lens focal length).

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• The focusing point may shift slightly by changing the focal length. First adjust the zoom

and then adjust focus.

Turn the zoom ring clockwise for telephoto and counterclockwise for wide-angle.