Ratio of emergent intensities at µ = 1.0 (top panels), µ = 0.5 (middle panels), and µ = 0.2 (bottom panels), calculated using the ODF approach to intensities calculated on a fine spectral grid and then averaged over bins used in the ODF calculations. The ratios are shown for the models with M/H = 0.5 (left column) and M/H = 1.0 (right column), T_eff = 3500 K, and log g = 4.5. ODF calculations between 400 and 550 nm were performed with two different setups: using sub-binning proposed by Castelli & Kurucz (2003) (red) and using sub-binning optimized for cold stars (i.e., four sub-bins of equal size, blue). ODF calculations longward 550 nm were performed only with Castelli & Kurucz (2003) sub-binning.