Comparison between the mass function derived by assuming a constant mass-to-light ratio (red squares), relation between mass and L₁₄₀₀ light derived by González et al. (2011; green stars), and the one derived in this work for the GOODS-South and UDS fields (blue circles). The error bars show only the Poissonian uncertainties of each point. The original GSMF presented González et al. (2011) is shown by dark-green symbols.