Rokinon RK50M-MFT-SIL 50mm F1.2 AS UMC High Speed Lens for Olympus & Panasonic (Silver) Lens features Rokinon Ultra Multi-Coated (UMC) optical glass for sharp, clear images 50mm fixed focal length with aperture range of f1.2-f21 Constructed of 9 lens elements in 7 lens groups Removable Lens Hood Uses filter size of 62mm and includes lens caps, lens pouch, instructional manual and 1 year Rokinon warranty