Meet samyangs best seller its luminous performance meets perfection meet samyangs best seller its luminous performance meets perfection high refractive extra low dispersionhr ed ultra multi coatingumc glass aspherical lenseas internal focusingif circular aperture with 6 blades the samyang 14 mm is a ultra wide angle manual focus lens designed for both full frame and aps c cameras samyang 14mm f28 features exceptional optical performance a