Hi Christine - the Macbeth chart - bottom row is meant to go from absolute white to absolute black. According to my monitor both white squares are shades of grey - the first one goes to dark grey - the second to almost black but not quite. The contrast increase brings the white squares nearer to white but it they are both still grey on my screen. The first chart also shows a definite yellow/orange cast which is very faint on the increased contrast chart - but detectable. Try a cooler setting and lets see?
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