Nikon D3s Body Only D3S User's Manual - Page 98

To adjust ISO sensitivity to suit lighting conditions, highlight High-sensitivity movie mode and press 2. If lighting is so poor that the subject is difficult to see with the naked eye, highlight On and press J to shoot at ISO sensitivities of ISO 6400 to Hi 3 (a m icon will be displayed in the monitor). Select Off to shoot at ISO sensitivities between ISO 200 and ISO 12800. y A High-Sensitivity Movie Mode Movies shot at high sensitivities are prone to noise (randomly-spaced bright pixels, fog, or lines) and after-images of light sources and other bright objects. If the subject is brightly lit, highlights may be "washed out" and details may be lost. Check the results in the monitor and turn high-sensitivity movie mode off if necessary. Note that the camera may have difficulty focusing using contrast-detect autofocus. Although m is displayed whenever high-sensitivity mode is enabled, photographs taken while high-sensitivity movie mode is in effect are shot at the ISO sensitivity selected for ISO sensitivity in the shooting menu (0 110). 72