Lensed QSOs and Galaxies:

• The original double QSO 0957+561, discovered in 1979 (z_QSO=1.405, z_lens=0.355), and its spectrum.
• The First Einstein ring, radio galaxy MG 1131+0456, discovered in 1988, z_lens=0.844.
• Another Einstein ring, galaxy SDSS J120540.43+491029.3 (z_source=0.481, z_lens=0.215).
• The "Einstein Cross", discovered in 1985 (z_QSO=1.695, z_lens=0.0394), and a deeper view.
• Galaxy Cluster Abell 2218 (z=0.1756) with lensed arcs of background galaxies.