Nikon D5200 Reference Manual - Page 66

ISO Sensitivity "ISO sensitivity" is the digital equivalent of film speed. The higher the ISO sensitivity, the less light needed to make an exposure, allowing higher shutter speeds or smaller apertures, but the more likely the image is to be affected by noise (randomly-spaced bright pixels, fog, or lines; noise is particularly likely at settings between Hi 0.3 (equivalent to ISO 8000) and Hi 2 (equivalent to ISO 25600)). Choosing Auto allows the camera to set ISO sensitivity automatically in response to lighting conditions. Mode i, j, % P, S, A, M Other shooting modes ISO sensitivity Auto 100-6400 in steps of 1/3 EV; Hi 0.3, Hi 0.7, Hi 1, Hi 2 Auto; 100-6400 in steps of 1/3 EV; Hi 0.3, Hi 0.7, Hi 1, Hi 2 1 Place the cursor in the information display. If shooting information is not displayed in the monitor, press the P button. Press the P button again to place the cursor in the information display. P button 2 Display ISO sensitivity options. Highlight the current ISO sensitivity in the information display and press J. Information display 3 Choose an ISO sensitivity. Highlight an option and press J. To return to shooting mode, press the shutter-release button halfway. 49