Comparison of the luminosity function of red-sequence galaxies for JKCS 041 (blue points with large error bars, shading and lines as in previous figure) and Coma (black points; from Andreon 2008). The JKCS 041 LF has been re-normalized to the Coma cluster φ^∗ for display purposes only. Labels on the upper x-axis indicate the stellar mass, derived from the H-band magnitude assuming our standard BC03 SSP settings with z_f = 3.