EF-M-Mount Lens/APS-C Format 25.6mm (35mm Equivalent) Aperture Range: f/1.4 to f/16 Two SLD Elements, Three FLD Elements Two Aspherical Elements Super Multi-Layer Coating Stepping Motor AF System Weather-Sealed Construction Rounded 9-Blade Diaphragm
EF-M-Mount Lens/APS-C Format 48mm (35mm Equivalent) Aperture Range: f/1.4 to f/16 Two Aspherical Elements One High-Refractive Index Element Super Multi-Layer Coating Stepping Motor AF System Rounded 9-Blade Diaphragm