Recovery of magnitude values for bulges (top) and disks (bottom) as a function of wavelength at each band [b], for a bright (m_r,B+D,sim < 17.5 mag, left) and faint (18.5 < m_r,B+D,sim < 19.5 mag, right) sample for multi-band (red) and single-band (blue) fits. Symbols show median values, and error bars indicate 16 and 84 percentiles. Numbers at the top of the panels indicate the sample size for each data point, for example the 580 bright disk galaxies for which both single-band (in all of griYHK band) and multi-band fitting produce a good fit, and in which the disk is bright enough (m_D < m_B + 1.5). For uzJ bands, we plot the biggest possible sub-sample of these objects. Deviations towards the top indicate that a component is fit too faintly. We note the different scales on the y axis for bulges and disks.