Colour–magnitude diagram for galaxies in the redshift bin centred around z = 0.11. Black pointsare the 5% reddest galaxies excluded as outliers in the first step of the mass completeness limit computation. Red points represent the 0.15 width colour stripe used to define the absolute magnitude limit starting from the rest-frame colour limit (see text). Blue points are all other objects which are not considered for the mass limit computation.