i-band image of the field around QSO 0102−2209 from the DES (Abbott et al. 2018). Dashed black circles denote impact parameters in multiples of 25 pkpc at the cluster redshift. Stars (selected from morphology as described in Abbott et al. 2018) are indicated with purple circles, while galaxies are marked with maroon circles. Where available, redshifts from Connor et al. (2018) are shown to the right; for other galaxies brighter than i < 21, DES photometry is given. For reference, the larger black circle in Figure 1 has a radius of 100 pkpc.