The present-day mass function, Ψ(m) = dN/dm, for the Coma Berenices cluster from 0.2 M_⊙ to 0.06 M_⊙. Each mass bin with an error bar has a width of 0.02 M_⊙; the error bars are based on the photometric uncertainties. The horizontal line is the mass function for the mass range 0.06 − 0.14 M_⊙ derived from our data. For comparison, the Pleiades mass function dN/dm ∝ m^-0.6 (inclined solid line) fitted over the mass range 0.05 − 0.25 M_⊙ (Moraux et al. 2003) is overplotted. The limiting magnitude of the TLS survey (I = 22.5) corresponds to objects with mass  ~0.05   M_⊙.