Top and middle panels: distribution of our sample of 300 galaxies (orange circles) in redshift, isophotal diameter (A_iso), and absolute r-band petrosian magnitude (M_r,p). For reference, the CALIFA mother sample is shown with black dots. The vertical lines indicate the limits in absolute magnitude in which the CALIFA mother sample is representative. Bottom panel: comparison of the luminosity functions of the SDSS (Blanton et al. 2003, thick dashed line), CALIFA mother sample (dark blue circles), and the kinematic sample presented here (orange circles).