Nikon SB 20 - Page 27

4. Select appropriate aperture and set aperture index knob.
The aperture index window shows usable apertures. With the film
speed index at
IS O 100, for example, you can select any aperture from f/2
tof/8 .
With the zoom set ring at N, if you select f/4, you can take pictures of sub-
jects
1 m to 7.5m (approx. 3.3f t. to 25ft.) away.
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