Optical composite image of the field surrounding HE0435−1223 made using the HST/WFC3 UVIS channel and the F275W filter, and ACS WFC and the F555W and F814W filters. The four lensed images (ABCD) of the background QSO at z = 1.689 are well resolved from the lens at z_lens = 0.4546 with a maximum angular separation of |$\overline{AC}=2.5$| arcsec. Galaxies, G1 and G2, are spectroscopically identified at z = 0.4188 and z = 0.7818, respectively (see Section 3 for discussion).