-New generation EF wide-angle L lens with ultra fast f/1.4 aperture
-14 elements in 11 groups optical design with 1 BR lens, 2 aspherical lenses and 1 UD lens to achieve unprecedented image quality
-Featuring BR (Blue Spectrum Refractive Optics) Lens effectively eliminates axial chromatic aberration and color blur even at wide open aperture, which are not correctable with conventional lens combinations
-The use of 1 large diameter glass-molded(GMo) aspherical lens, 1 ground aspherical lens with 1 UD lens results in higher image quality across the entire image including the periphery even at wide open aperture
-Optimized lens design reduces sagittal flare in the peripheral areas dramatically
-Application of SWC (Subwavelength Structure Coating) on the 1st lens element to suppress the ghosting and flare caused by light with a high angle of incidence, which is not possible with conventional coating
-9-blade circular aperture produces beautiful out-of-focus image
-0.28m minimum focusing distance with 0.21x maximum magnification
-Rear focusing design with ring USM and optimized AF algorithm bring fast and quiet autofocus with full time manual focus
-Optimized mechanical structure provides improved resistance to shock and vibration, offering durability that satisfies the demand of professional users
-Optimized lens placement and coatings for digital cameras to ensure excellent color balance and minimize ghosting and flare
-Fluorine coating on foremost and rearmost lens surfaces makes lens cleaning easier
-Dust and water resistance design1 to enable shooting in harsh conditions
-Lens Hood EW-77B” and “Lens Case LP1219” included
1 With EOS-1D Series and EOS-1V body, however it is not recommended for use under rain
