The samyang 14mm f28 ed as if umc lens canon fit is a super wide angle lens designed to work with both full frame and aps c sensor cameras its optical construction features 14 elements in 12 groups and combines two ed plus two aspherical elements hybrid and standard all lens elements are ultra multi coated umc with the highest quality new generation antireflective layers this optical construction as well as state of the art materials allows you to take photos of the highest possible qual