Nikon COOLPIX A900 Reference Manual - Page 73

P: Programmed Auto In this mode, the camera automatically adjusts shutter speed and aperture according to a built-in program to ensure optimal exposure in most situations. This mode is recommended for snapshots and other situations in which you want to leave the camera in charge of shutter speed and aperture. # A Flexible Program In mode P, different combinations of shutter speed and aperture can be selected by rotating the command dial ("flexible program"). Rotate the dial Command dial counterclockwise for large apertures (low f-numbers) that blur background details or fast shutter speeds that "freeze" motion. Rotate the dial in the opposite direction for small apertures (high f-numbers) that increase depth of field or slow shutter speeds that blur motion. All combinations produce the same exposure. While flexible program is in effect, a U indicator is displayed. To restore default shutter speed and aperture settings, rotate the command dial until the indicator is no longer displayed, choose another mode, or turn the camera off. 53