Cluster completeness-corrected MFs calculated at different radial annuli from the cluster centres. The dashed line indicates the fit to the MF. The slopes of the fits indicate the slope of the MF and are also indicated in the plots. We reiterate here that in our notation, the Salpeter IMF would have a slope α = −2.35, and that a positive index implies that the number of stars decreases with decreasing mass.