Home Ohter Stuff Zone System - Gray Scale
                 
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1
Almost Black Effective threshold. First step above complete black. Slight tonality, but no texture.
 
2
Very Dark First suggestion of texture. Deep tonalities, representing the darkest part of the image in which some detail is required.
 
3
Gray-Black Average dark materials. Low values showing adequate texture.
 
4
Dark Gray Average dark foliage. Dark stone. Landscape shadow. Recommended shadow value for the portraits in sunlight.
 
5
Middle Gray Kodak Neutral Test Card (18% reflectance gray card.) Clear north sky (panchromatic rendering.) Dark skin. Gray stone. Average weathered wood.
 
6
Gray Average Caucasian skin tones in sunlight and in diffuse skylight or very soft light. Light stone. Clear north sky (orthochromatic rendering.) Shadows on snow in sunlight.
 
7
Light Gray Very light skin. Light-gray objects. Average snow with acute side lighting.
 
8
Off-White Whites with textures and delicate values (not blank whites). snow in full shade. Highlights on Caucasian skin.
 
9
White Glaring white surfaces. Snow in flat sunlight. White without texture.