Differential-reddening-corrected and proper-motion-selected NIR CMDs of Terzan 5 (in an annular region between 10″ and 40″ from the center). Left: CMD shows a sequence of stars brighter than the second MS-TO. Right: same stars shown in gray, with the best-fitting PARSEC (Bressan et al. 2012; Tang et al. 2014; Chen et al. 2015) isochrones overplotted. The blue and red lines are the same as in Fig. 8, while the additional component of 3.8 Gyr (Z = 0.03) is shown in green.