Nikon D3100 2 manual Set exposure Compensation Mode P, S, or a, Choose a flash mode 0

Set exposure
compensation		+
(mode P, S, or A;
0 81).
Mode P, S, or A	Ebutton	Command dial	Information display
Choose a flash mode (0 68).
		+

X

		Mbutton	Command dial	Information display
Adjust flash compensation (mode P, S, A, or M; 0 83).
		+	+
P, S, A, or M	Mbutton	Ebutton	Command dial	Information display

The role of the Fn button can be selected using the Buttons > Fn button option in the setup menu (0 146), allowing the following settings to be adjusted by pressing the Fn button and rotating the command dial:

	+
Fn button	Command dial

Image quality/size (064)

ISO sensitivity (071)

White balance (087)

Active D-Lighting (085)

9