2. Set aperture.
With Nikon F·401/N4004, use camera'saperture dial. Don't forget to lock lens at minimum position.
For other flash operations, set as follows:
For programmed TTL operation, set to smallest lens
aperture (largest f·number) and lock the lens aperture. (For details, see the lens instruction manual).
Lens
only
F·501l
N2020
with
Lens maximum
aperture
f/2 .8 or faster
Slower than f/2.8
f/1.4 or f/1 .2
f/1 .8, f/2, f/2.5 or f/2.8
Aperture setting
f/2 .8 or larger f·number (f/2 .8, f/4 , f/5 .6, etc.)
f/5 .6 or larger
f/2 or larger
f/4 or larger
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