CMDs of the clusters in our sample. The black dots are the stars that were used for the further analysis, whereas the (cyan) triangles indicate stars that were subtracted as field stars. Obviously, also some cluster stars were excluded in our SFH fits, but this does not affect our results. All CMDs contain only the stars in the inner regions of the clusters (two times the core radius). Note that the CMD of NGC 2157 is in the (V − I) vs. I space.