White-light images of the three quadruply lensed AGN systems. The target name and the value of the Einstein radius (R_e) is indicated in each panel. The spectra are extracted from the colored circular apertures. The colors of the apertures follow the order of brightness: A (purple, brightest), B (blue), C (orange), and D (green, faintest). For J0957, we also detect the emission-line lensing source (E) in red.