- Aperture range: f/1.4 to f/16
- Weather-sealed construction
- Two aspherical elements
- Number of diaphragm blades: 9 (rounded diaphragm)
- Minimum aperture: f16
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