Photometry analysis of J2218-3322’s lens. Left to right: rest-frame B-band luminosity (in AB mag), B-band mass-to-light ratio, and WFC3 [F475W − F814W] color. The black dotted line shows the B-band characteristic luminosity of early-type galaxies at intermediate redshifts reproduced from A. Gabasch et al. (2004). Shaded regions near each curve indicate the relative size of associated uncertainty. Vertical dotted gray lines mark the range of the most probable redshift for this lens between 0.5 < z < 1.2.