Nikon D7500 Users Manual - English for customers in the Americas - Page 331

Live view ends unexpectedly or does not start: Live view may end automatically to prevent damage to the camera's internal circuits if: • The ambient temperature is high • The camera has been used for extended periods in live view or to record movies • The camera has been used in continuous release modes for extended periods If live view does not start when you press the a button, wait for the internal circuits to cool and then try again. Note that the camera may feel warm to the touch, but this does not indicate a malfunction. Image artifacts appear during live view: "Noise" (randomly-spaced bright pixels, fog, or lines) and unexpected colors may appear if you zoom in on the view through the lens (0 57) during live view; in movies, the amount and distribution of randomly-spaced bright pixels, fog, and bright spots is affected by frame size and rate (0 188). Randomly-spaced bright pixels, fog, or bright spots may also arise as a result of increases in the temperature of the camera's internal circuits during live view; exit live view when the camera is not in use. Menu item can not be selected: Some options are not available in all modes. Shooting (P, S, A, M) Shutter-release disabled: • Non-CPU lens is attached: rotate camera mode dial to M (0 72). • Mode dial rotated to S after shutter speed of A or % selected in mode M: choose new shutter speed (0 74). Full range of shutter speeds not available: Flash in use. Flash sync speed can be selected using Custom Setting e1 (Flash sync speed); when using compatible flash units, choose 1/320 s (Auto FP) or 1/250 s (Auto FP) for full range of shutter speeds (0 265). Can not measure white balance: Subject is too dark or too bright (0 142). Image can not be selected as source for preset white balance: Image was not created with D7500 (0 146). 305