The Fujinon MK-R zooms are a modification to the original Fujinon MK lenses performed by Duclos Lenses to equip them with a fixed Canon RF mount. The Fujinon MK line sets itself apart from the pack with an ultra lightweight design combined with Fujinon's cinema lens pedigree. Ideally matching Fujinon's established Cabrio XK line, the MK lenses are an excellent choice for mirrorless camera systems. The MK-R zooms are an ideal pairing with the new RED KOMODO 6K camera thanks to their versatility and reliability. Learn more about the MK-R mount conversion here. (minor vignetting at small apertures between 18mm and 20mm).