Nikon D5100 - Manual (Page 240)

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Shooting (P, S, A, M)
Shutter-release disabled :
• Non-CPU lens is attached: rotate camera mode dial to M ( 0 65, 199).
• Mode dial rotated to S after shutter speed of “Bulb” or “Time” selected in mode M: choose
new shutter speed ( 0 63).
Full range of shutter speeds not available : Flash in use ( 0 53).
Colors are unnatural :
• Adjust white balance to match light source ( 0 81).
• Adjust Set Picture Control settings ( 0 91).
Can not measure white balance : Subject is too dark or too bright ( 0 85).
Image can not be selected as source for preset white balance : Image was not created with D5100 ( 0 87).
Effects of Picture Control differ from image to image : A (auto) is selected for sharpening, contrast, or
saturation. For consistent results over a series of photos, choose another setting ( 0 93).
Metering can not be changed : Autoexposure lock is in effect ( 0 69).
Exposure compensation can not be used : Choose mode P, S, or A ( 0 61, 70).
Noise (reddish areas or other artifacts) appears in long time-exposures : Enable long-exposure noise
reduction ( 0 154).