Left: NICMOS F160W image of B0128+437. The resolution of the Hubble Space Telescope in this band makes it difficult to resolve individual components. Middle: AO image of B0128+437. The four lensed quasar images (A–D) are clearly seen and easily resolved, along with a partial Einstein ring from the quasar host galaxy. The 3σ 2.3 GHz contours of B04 are overlayed in white. Additionally, the lensing galaxy can be seen lying close to A, B, and D in the image plane. Right: flux remaining in the B0128+437 system after subtracting the source quasar and host galaxy light. The lens galaxy is now clearly visible. Note that the image stretch in this panel is different from that of the middle panel.