Both panels: galaxies from the COSMOS photometric catalog with 0.69 ≤ z_phot ≤ 0.79. The left panel shows K_s-band WIRCAM magnitudes versus masses (computed using Chabrier IMF, and Bruzual&Charlot model library, no secondary bursts). The horizontal red line shows our magnitude cut-off K_s ≤ 22.6, that enables us to reach completeness, irrespective of colors, for masses down to the limit log(ℳ_∗/ℳ_⊙) = 9.8. The right panel shows K_s-band WIRCAM magnitudes versus I_AB magnitudes. Within our K_s-band selection limit the vast majority of galaxies are brighter than I_AB = 24.0.