Nikon 25414 D2Xs User's Manual - Page 107
Non-CPU Lenses, Non-CPU lens data, Exposure Warning, Aperture Lock, b3-EV Step, f6-Command Dials,
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Taking Photographs-Exposure Non-CPU Lenses If the maximum aperture of the lens has been specified using the Non-CPU lens data item in shooting menu ( 131) when a non-CPU lens is attached, the current f/-number will be displayed in the viewfinder and top control panel, rounded to the nearest full stop. Otherwise the aperture displays will show only the number of stops ( , with maximum aperture displayed as ) and the f/-number must be read from the lens aperture ring. Exposure Warning If the camera is unable to produce the correct exposure at the selected aperture, the electronic analog exposure display ( 95) in the viewfinder will show the amount of under- or over-exposure and one of the following indicators will be displayed in the control panel and viewfinder shutter-speed displays: Indicator Description Subject too bright. Choose smaller aperture (larger f/-number) or lower ISO sensitivity ( 52), or use optional Neutral Density (ND) filter. Subject too dark. Choose larger aperture (smaller f/-number) or higher ISO sensitivity ( 52), or use optional Speedlight. Aperture Lock Aperture can be locked at the selected setting ( 96). b3-EV Step ( 192) This option controls whether changes to shutter speed and aperture are made in increments equivalent to 1/3 EV (the default setting), ½ EV, or 1 EV. f6-Command Dials ( 210) Command dials > Change main/sub and Command dials > Aperture setting control whether aperture is assigned with the main command dial, the sub-command dial, or the lens aperture ring. Regardless of the settings chosen, the command dials are always used with type G lenses, the lens aperture ring with non-CPU lenses. 93