Reconstruction of input mass function from the observed number counts of shear-selected clusters selected in an n_gal = 30 arcmin⁻² sample with a ν_threshold ≥ 4.0 cut. The dotted histograms show the observed number density of clusters in this sample, and the reconstructed mass functions are shown in error bars. The true number density in each bin based on the input mass function from Tinker et al. (2008) is plotted as the solid histogram.