Nikon D500 Users Manual - English for customers in Asia Oceania the Middle Eas - Page 160

A: Aperture-Priority Auto In aperture-priority auto, you choose the aperture while the camera automatically selects the shutter speed that will produce the optimal exposure. To choose an aperture between the minimum and maximum values for the lens, rotate the sub-command dial while the exposure meters are on. Aperture can be locked at the selected setting (0 140). Sub-command dial A Non-CPU Lenses (0 321, 323) Use the lens aperture ring to adjust aperture. If the maximum aperture of the lens has been specified using the NonCPU lens data item in setup menu (0 251) when a non-CPU lens is attached, the current f-number will be displayed in the viewfinder and control panel, rounded to the nearest full stop. Otherwise the aperture displays will show only the number of stops (F, with maximum aperture displayed as FA) and the f-number must be read from the lens aperture ring. 134