Shop › Voigtlander 90mm f/2.0 Apo-Ultron VM (Black) Voigtlander 90mm f/2.0 Apo-Ultron VM (Black) $899.00 sold out Voigtlander 90mm f/2.0 Apo-Ultron — a manual-focus lens for Leica M Mount. Filter thread: 52mm. Sold Out Added! Voigtlander 90mm f/2.0 Apo-Ultron — a manual-focus lens for Leica M Mount. Filter thread: 52mm.