117ZExposure ModeTo determine how thecamera sets shutterspeed and aperturewhen adjustingexposure, press the I(Q) button and rotatethe main command dialuntil the desired optionappears in the controlpanel.A Lens TypesWhen using a CPU lens equipped with an aperture ring (0 373), lockthe aperture ring at the minimum aperture (highest f-number). Type Glenses are not equipped with an aperture ring.Non-CPU lenses can only be used in exposure mode g (aperture-priorityauto) and h (manual). In other modes, exposure mode g isautomatically selected when a non-CPU lens is attached (0 371, 374).The exposure mode indicator (e or f ) will blink in the control panel andA will be displayed in the viewfinder.A Depth-of-Field PreviewTo preview the effects of aperture, press andhold the depth-of-field preview button. The lenswill be stopped down to the aperture valueselected by the camera (modes e and f ) or thevalue chosen by the user (modes g and h),allowing depth of field to be previewed in theviewfinder.A Custom Setting e4—Modeling FlashThis setting controls whether the built-in flash and optional flash unitssuch as the SB-910, SB-900, SB-800, SB-700, and SB-600 (0 381) willemit a modeling flash when the depth-of-field preview button ispressed. See page 307 for more information.I (Q) buttonMain command dialDepth-of-fieldpreview button
