Cluster and field GLFs in the B,V,R, and I rest-frame bands (from left to right). Red and blue points respectively correspond to red-sequence and blue stacked cluster GLFs normalized to 1 deg². The red and blue plain curves show the best Schechter fits to red-sequence and blue galaxies and the red and blue vertical lines indicate the corresponding 90% completeness limits. The slope of the fit α is given for each population. Refer to Table 2 for cluster best Schechter fit parameters. The thin dotted and dashed curves correspond to the COSMOS field GLFs centered at redshifts z = 0.5 and z = 0.7 normalized to 1 deg². The separation between red and blue field galaxies is done the same way than for clusters at the corresponding redshift (see text for details).