Selector Dial and OK Button

Another big improvement in the design of the SB-900 and SB-910 is the introduction of the Selector Dial and OK button. Previous versions of Nikon flashes relied on the +/– buttons to increase or decrease settings. Now, you rotate the dial right or left to increase/decrease settings. Once you have dialed in the correct setting, you use the OK button to lock in your selection (figure 7.18).

For example, to make an EV (output) change in TTL BL mode, rotate the Selector Dial to your desired output and press the OK button to lock in the value. The approach is simple and direct.

If you look carefully at the back of the SB-900 flash, you will see a small icon with the words OK/MENU. The dot icon next to OK means that if you press the OK button quickly, the button will behave like an enter button. On the SB-910, the line icon next to MENU means that if you press and hold the OK button for two seconds, it will open up the Custom Settings Menus.