Samyang SYAE35M-C 35mm F1.4 Aspherical Lens with Chip for Canon AE/EF-S Cameras Focal Length Matched Bayonet Lens Hood That's Reversible for Storage Included Ultra Multi Coating (UMC) For Increased Light Transmission and Reduced Internal Reflections Excellent Bokeh at F1.4 Aided by an 8 Bladed Diaphragm Remains Super Smooth at All Apertures CPU (AE) Auto Exposure Chip + Aperture Control Motor Provides Operation in All Exposure Modes and Aperture Control from the Camera Body Utilizes 12 High Precision Glass Lens Elements Including 1 High Refractive Index (HR) + 1 Aspherical (AS) For Superior Image Quality Even at Open Aperture