... the color difference between two samples. Color difference displayed Δ(L*,a*,b*) Δ(E*ab,C*ab, H*ab) Δ(Y, x, y) Δ(X ... at 0°Measuring area:Approx.f2mmDisplay modes:Color differenceΔ(L*,a*,b*), Δ(E*ab,C*ab, H*ab),Δ(Y, x, y), Δ( ... LED lamp.Repeatability:Standard deviation within ΔE*ab 0.5(Measurement conditions : Average of measurements of standard white plate).Minimum intervalbetween measurements:Approx ...