Examples of synthetic spectra at the solar disk center, μ = 1, for the nonmagnetic (left) and the magnetic 240 mT (2400 G) simulation, expanded in wavelength from top down. Each section is normalized locally while the lower frame shows line identifications. From that region, the lines of Fe II 449.1405 and Fe II 450.8288 nm were selected for detailed study (Fig. 4 below). The wavelength scale denotes values in air.