Nikon COOLPIX P900 Reference Manual - Page 161

D High ISO Sensitivities The higher the ISO sensitivity, the less light needed to make an exposure, allowing pictures to be taken when lighting is poor and helping prevent blur when the subject is in motion. Note, however, that the higher the sensitivity, the more likely the image is to be affected by "noise" in the form of randomly-spaced bright pixels, fog, or lines. D Hi 0.3-Hi 2.0 A setting of [Hi 0.3] corresponds to an ISO sensitivity approximately 0.3 EV higher than the camera's highest numeric ISO value (25600 in the case of the Z 7II, 51200 in the case of the Z 6II), equivalent to ISO 32000 in the case of the Z 7II or ISO 64000 in the case of the Z 6II. [Hi 2.0] corresponds to an ISO sensitivity approximately 2 EV higher (102400 in the case of the Z 7II, 204800 in the case of the Z 6II). Note that pictures taken at these settings are particularly prone to "noise" in the form of randomly-spaced bright pixels, fog, or lines. D Lo 0.3-Lo 1.0 [Lo 0.3] corresponds to an ISO sensitivity about 0.3 EV below the camera's lowest numeric ISO value (64 in the case of the Z 7II, 100 in the case of the Z 6II), equivalent to ISO 50 in the case of the Z 7II or ISO 80 in the case of the Z 6II. [Lo 1.0] is roughly 1 EV below the lowest numeric ISO value, equivalent to ISO 32 in the case of the Z 7II or ISO 50 in the case of the Z 6II. Use for larger apertures or slower shutter speeds when lighting is bright. Highlights may be overexposed. In most cases, ISO sensitivities of ISO [64] (Z 7II) or [100] (Z 6II) or above are recommended. The S Button 119