The mixture of blue, red an yellow in these proportions is making a neutral grey tone.

One then meters for an average gray tone and fires away.

The deep gray tones of infrared only added to the ghoulish effect.

Do we really want every picture to be exposed according to an average gray tone?

The shorter red building was later restored to its original gray tone.

But its dull, gray tones make it hard to identify the men by race.

There weren't any colors in that world, all gray tones, but otherwise it wasn't much different from this one.

Bill looked at it and felt the world swim into gray tones all around him.

He nodded, moving the mouse some more, adjusting the gray tones.

The gray tones in my photographs are meant to convey distance and ambiguity.