Inferred effective radii in KiDS (g-, r- and i-bands) and VIKING imaging (Z-band) versus the effective radii in SDSS (as described in Kelvin et al. 2012) for the 22+7 objects in our sample. The colour coding follows the Sérsic index, with blue dots being disk-like (n < 2.5) objects and red dots being spheroid-like (n > 2.5) objects. The symbol sizes indicate stellar mass, with big symbols representing > 8 × 10¹⁰ M_⊙ galaxies, and small symbols between 6 × 10¹⁰ M_⊙ and 8 × 10¹⁰ M_⊙. There is little correlation between sizes in the two axes, perhaps only for small galaxies in SDSS being also small in the deeper imaging.