In the preceding post, the histogram for the D4 had more spread to it than the one for the D800E. It’s not the camera. It’s the lens. The D800E looked at the monitor through a 200mm lens, and the D4 through a 100mm one. It turns out that, with my 30in NEC PA301W monitor, that… [Read More]
Archives for December 11, 2012
What’s luminance?
In doing research on in-camera histograms, I have found repeated assertions that the luminance histogram is the same as the green channel histogram, color science to the contrary (the only RGB color space in which colorimetric luminance is the same as the green channel would have to have three identical primaries, all of them the… [Read More]