Upper panel: light bending relation between the cosine of the emission angle α and the cosine of the angle ψ between the line of sight and the radius-vector of the emission point in the Schwarzschild metric. The red curves give the exact relation. Our new approximate relation (2) is shown with the black curves. The blue straight lines are for the Beloborodov (2002) approximation (1), while the green curves represent the approximation (16) by La Placa et al. (2019). The red, green, and black curves practically coincide. The solid, dotted, dashed, and dot-dashed curves correspond to radii R/R_S = 1.5, 2, 2.5, and 3, respectively. Bottom panel: relative error of the emission angle δα/α for three approximations as compared to the exact result. Same notations as in the upper panel.