Nikon D3100 - Manual (Page 24)

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8
The Command Dial
The command dial can be used with other controls to adjust a variety of settings
when shooting information is displayed in the monitor.
Choose a combination of
aperture and shutter speed
(mode P;
0 74).
Mode P Command dial Information display
Choose a shutter speed
(mode S or M;
0 75, 77).
Mode S or M Command dial Information display
Choose an aperture
(mode A;
0 76).
Mode A Command dial Information display
Choose an
aperture
(mode M;
0 77).
+
Mode M E button Command dial Information display
Command dial
M button
Fn button
Mode dial
E button