Histogram ( Plain or RGB) is displayed only in Playback.
Playback menu > Detailed Photo Info > RGB Histogram > OK, Then Done > OK.
See P.45, 99 to 101 & 130 of the PDF manual in CD.
I select all three available options in detailed photo info so that I can cycle thro' them as necessary.
Last edited by Sudhakar Redddy; 04-26-2012 at 12:32 PM.
Nikon D 3100, D 40X.
Nikon 18-55mm VR, 55-200mm VR, 70-300mm VR, 35mm & 18-135 mm.