Radial profile of M/L for g (upper panels) and r band (lower panels) stacked by Hubble type for the observed (left panels) and synthetic restframe spectra (right panels). The profiles with intrinsic extinction are shown in continuous lines and the deredden profiles (using the extinction values given by the stellar population analysis) in dashed lines. For the sake of clarity, the uncertainty band is plotted only in the not dereddened profiles.