Present-day local LFs (bottom panels) and MFs (top panels) for NGC 6121 (left column) and NGC 6397 (right column). Error bars represent the propagated Poisson errors. The horizontal, dashed line in the bottom panels is set to zero for reference. For NGC 6121, we plot the results for the Northern and Southern fields with open and filled dots, respectively. In the top panels, the blue lines represent straight-line fits to the points, the slopes of which are reported in the text. For the case of NGC 6121, the blue solid line refers to the Northern field, while the dashed line is obtained from the Southern-field points. Finally, the red, dotted lines have a slope of −1.3 (i.e., that of a Kroupa MF in the observed mass range) and arbitrary intercept to fit in the plot.