Lens-plane plots of the deflection angle α₀(x)/κ_s of the ellipsoidal NFW lens with components given by Eqs. (30) and (31). The three panels correspond to eccentricities e ∈ {0, 0.6, 0.9}, as marked above the plots. The arrows mark the deflection-angle vectors at the position of their central dots. The amplitude of each vector is indicated by its color (with a separate color bar for each panel), and by constant-amplitude contours at values marked vertically across the color bars. Positions with maximum deflection amplitude are marked by the large bold black circle in the left panel, and by the two solid black dots along the minor axis in the second and third panels. The two small black circles in these panels indicate saddle points with maximum deflection along the major axis. We note that in the case of non-zero eccentricity the deflection at positions off the major and minor axes has a non-radial orientation.