Nikon D780, Reference Manual

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Menu Guide > A Custom Settings
Aperture Setting
Choose whether aperture can be adjusted using the aperture
ring on CPU lenses in modes
A and M .
•
Regardless of the option selected for [ Aperture setting ],
aperture for lenses not equipped with an aperture ring (type G
and E lenses) must be adjusted using the sub-command dial.
•
When using non-CPU lenses, supply lens data using the [ Non-
CPU lens data ] item in the setup menu (
0
349) and adjust
aperture using the lens aperture ring.
Option Description
[ Sub-command
dial ]
Aperture can only be adjusted with the sub-command
dial (or with the main command dial if [
On ] is selected
for [ Change main/sub ] > [ Exposure setting ]).
[ Aperture ring ]
Aperture can be adjusted with the lens aperture ring.
The camera aperture display shows aperture in
increments of 1 EV, although fractions of 1 EV can still
be selected using the aperture ring.