Comparison of MILES SSP templates with different ages (0.05 and 10 Gyr, from left to right) and metallicities (-1.49 and 0.40 dex, from top to bottom). The templates are shown for both values of [Mg/Fe] (black: 0.00 dex, red: 0.40 dex) and important absorption features are indicated by colored dashed lines (blue: Hβ at 4861.33 Å, orange: Mg at 5183, 5172 and 5167 Å, green: Fe at 5167.49, 5227.15 and 5269.54 Å).