Top left: distribution of the inclination angles for disk (S0-Sm) galaxies. The dashed curve represents the expected random distribution. Top right: distribution of corrected g-band absolute magnitudes for the classified (E-Im) galaxies. The dashed histogram shows the distribution of g-band absolute magnitudes of the SDSS Main Galaxy sample (the values are divided by 500 for the sake of clarity). Bottom: the g-band luminosity of the same galaxies as a function of their distance. The color and symbol coding corresponds to Fig. 11. The average luminosity in different distance bins is overplotted as big open circles with error bars of the mean values. The dashed line represents the selection limit of the SDSS Main Galaxy spectroscopic sample (r ≤ 17.77) for the extinction corrected Petrosian magnitude, assuming g − r = 0.64.