The sony f14 za zeiss planar lens is an a mount fast prime lens with a bright f14 aperture and is an ideal choice for portraiture and low light shooting featuring 8 elements in 5 groups with two aspherical elements the optical design optimised for superb results with sonys full frame sltslrs the 50mm f14 is a portable lens that maintains the same lens body length during af and offers smooth quiet focusing and exceptional contrast at all apertures this za zeiss alpha lens includes m