Comparison between the CMDs of ESO452-11 (upper row) and 2MASS-GC01 (lower row), before (left-hand panels) and after (right-hand panels) applying our differential-reddening correction. The red arrows represent the reddening vector obtained using the E(B − V) values from the literature (Sect. 3.2), the A_λ assuming the Cardelli et al. (1989) law, and R_V = 3.1. The size of the arrows is reduced by a factor of three for clarity.