Nikon F4 User Manual

Page 93

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For lenses with fixed apertures

Because the aperture of a Reflex-Nikkor lens is fixed, in photo­
micrography or telescopic photography, it is impossible to

change the exposure by varying the aperture.

In A mode:

The F4’s computer will automatically adjust the shutter

speed. Take the picture by simply depressing the shutter

release button.

In M mode:

Select the appropriate shutter speed (in 1 EV steps) for
correct exposure. If a correct exposure cannot be obtained,
use either an ND filter (if the scene is too bright) or supple­
mentary illumination (if too dark).


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