GLFs in the B,V,R and I rest-frame bands (from left to right) for individual clusters ordered by right ascension. Red and blue points correspond to red-sequence and blue GLFs normalized to 1 deg². The red vertical lines indicate the 90% completeness limit. The red and blue curves show the best Schechter fits to red sequence and blue galaxies, and the faint-end slope parameter (α) is displayed in the corresponding colour. Only galaxies brighter than the 90% completeness limit are taken into account in the fits. Also, we only show GLFs richer than 20 galaxies after the colour separation and after subtracting the field.