Nikon D100 Product Manual - Page 89

Taking Photographs-Exposure Aperture Controlling How the Camera Sets Exposure P: Auto Multi Program In this mode, the camera automatically adjusts shutter speed and aperture according to a built-in program (see below) for 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. Adjustments can be made using flexible program, exposure compensation ( 86), and auto exposure bracketing ( 88). Auto multi program is only available with CPU lenses. Non-CPU Lenses (Exposure Modes P, S, and A) Non-CPU lenses can only be used in manual exposure mode ( 82), when aperture can be adjusted manually using the lens aperture ring. If another exposure mode is selected when a non-CPU lens is attached, the shutter release will be disabled and a blinking will appear in the aperture displays in the control panel and viewfinder. Exposure Program The exposure program for auto multi program is shown in the following graph (ISO 200): AF 50 mm f/1.4D AF ED 180 mm f/2.8D AF-S ED-300 mm f/4D Shutter speed The maximum and minimum values for EV vary with sensitivity (ISO equivalency); the above graph assumes a sensitivity of ISO 200 equivalent. When matrix metering is used, values over 171/3 EV are reduced to 171/3 EV. 77