Duclos Lenses — Voigtlander Nokton Cine-Mod Set. Nokton 17.5mm f/0.95 Cine-Mod (35mm equiv.) Nokton 25mm f/0.95 Cine-Mod (50mm equiv.) Nokton 42.5mm f/0.95 Cine-Mod (85mm equiv.) Once the Voigtlander primes are combined with the Duclos Lenses Cine-Mod, you have a full featured cinema prime lens featuring common 80mm front rings with a 77mm filter thread, an industry standard 32-pitch (0.8 mod) follow focus gear, and a click-less smooth aperture ring.