Nikon D3X D3X User's Manual - Page 246

5 Select [Done]. Highlight [Done] and press J. The specified focal length and aperture will be stored under the chosen lens number. This combination of focal length and aperture can be recalled at any time by selecting the lens number using camera controls as described below. ❚❚ Choosing a Lens Number Using Camera Controls 1 Assign non-CPU lens number selection to a camera control. Select [Choose non-CPU lens number] as the "+command dials" option for a camera control in the Custom Settings menu. Non-CPU lens number selection can be assigned to the Fn button (Custom Setting f4, [Assign FUNC. button], pg. 333), the depth-of-field preview button (Custom Setting f5, [Assign preview button], pg. 339), or the AE-L/AF-L button (Custom Setting f6, [Assign AE-L/AF-L button], pg. 340). 2 t Use the selected control to choose a lens number. Press the selected button and rotate the main command dial until the desired lens number is displayed in the top control panel. Focal length Maximum aperture Main command dial 220 Lens number