Shop › Voigtlander 40mm f/1.2 Canon Aspherical RF Voigtlander 40mm f/1.2 Canon Aspherical RF $749.00 sold out Voigtlander 40mm f/1.2 Canon Aspherical — a manual-focus lens for Canon RF Mount. Filter thread: 58mm. Sold Out Added! Voigtlander 40mm f/1.2 Canon Aspherical — a manual-focus lens for Canon RF Mount. Filter thread: 58mm.