Comparison between three different Probability Distribution Functions for the H_r of 1034 T-1. All distributions are centered at the median value of the magnitude obtained with the Full PDF. The blue dashed line considers only the errors in the magnitude, the orange dot-dashed line considers a single Δm = 0.4, and the continuous green line considers all possible values of Δm and the photometric errors (see text). The black vertical line represents the zero (i.e., the median of the Full PDF), while the shaded area covers the interval where the 68% of the solutions lie in the green curve.