Age resolution tests for Field 2 for six different burst ages (indicated by the arrows), namely 10,5,3,0.2,0.1 Gyr. Gaussian profiles represent the recovered SF episodes. The age peak and σ are given. Each colour represents the recovered SF episode of a different age, in dashed-grey-, dashed-black-, dotted-black-, continuous-grey-, dotted-grey-, and continuous-black- lines respectively from the oldest to the youngest. Similar results are obtained for all the other fields.