Effect of redshift on the photometric parameters of the galaxies. As a function of galaxy magnitude (m_r′), shown are the effective radius (R_e), the mean effective surface brightness (), the residual flux fraction (RFF), and the concentration parameter (C). The galaxies in the images on the left are presented in the right-side panels with the symbols shown in the upper left corner of the images. The different symbol sizes in the panels correspond to the different redshifts, as indicated in the upper left panel. The gray points in the panels correspond to all the galaxies in our sample, with the spectroscopically confirmed cluster and background galaxies indicated with the black and red filled circles, respectively. This figure is best viewed on-screen.