Left: HST I-band observation (HST Proposal 9133, based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA)) with B0128 (red circle) and the shear galaxy (yellow circle); the image detail shows the cleaned I-band image of B0128 as obtained by the CASTLe Survey, https://www.cfa.harvard.edu/castles/. Right: MERLIN 5 GHz observation by Phillips et al. (2000) showing the four multiple images; map peak: 0.0174 Jy beam⁻¹, contours: 0.000277 Jy beam⁻¹ × (−3 3 6 12 24 48) amounting to multiples of 48 times the root-mean-square (rms) noise of 277 μJy beam⁻¹, beam full-width at half maximum (FWHM): 58.8 × 47.7 mas² at 50.9°.