NLTE abundance corrections for the lines of Ca i in the 5780/3.70/−2.46 and [Ca/Fe] = 0.4 model from calculations using pure electronic collisions (triangles) and including collisions with H i according to MGB17 (filled circles), B17u (filled rhombi), and MGB17 with no b–b transitions (open rhombi). For comparison, the NLTE corrections were computed with the scaled Drawinian rates (S_H = 0.1, open circles). The vertical lines indicate positions of the following lines: 1 = 4425 Å, 2 = 5349 Å, 3 = 5588 Å, 4 = 5590 Å, 5 = 5857 Å, 6 = 6162 Å, 7 = 6169.5 Å, 8 = 6439 Å, 9 = 6493 Å, and 10 = 6499 Å.