Voigtlander APO-Lanthar 90 mm f/ 3.5 SL II Close Focus - telephoto macro-lens for a 35mm SLRs with a Canon EF, Nikon F, Pentax K mounts.
Its predecessor was Voigtlander APO-Lanthar 90 mm f/ 3.5 SL lens with a bayonet mount lens hood. The new design was more compact and lighter. SL II is typical "trombone". On a minimum focus distance, lens body is extended by almost half.