Vista-C primes use a redesigned optical formula and new coatings that shift flares toward red and blue with gentle falloff. Each lens is T1.5 with a 9-blade iris, ~300° focus rotation, virtually no breathing, 114 mm fronts (112 mm filters), PL mount, and large-format coverage (φ46.7 mm image circle; up to 65 mm sensors). Focal lengths: 18–135 mm.