Line profiles emerging from a Milne-Eddington atmosphere with β₀ = 2, η_l = 3 and a = 0.02. The lines have a characteristic Doppler broadening of 2 km s^-1. Because the Doppler broadening is defined in velocity units, the broadening in wavelength units increases in proportion to the central wavelength of the line. We display the line profiles for five different microturbulent magnetic field strengths (B = 0,100,200,300, and 400 G).