Canon EF-M 15-45mm f/3.5-6.3 IS STM Lens (Graphite) Short Description EF-M Mount Lens/APS-C Format 24-72mm (35mm Equivalent) Maximum Aperture: f/3.5-6.3 Three Aspherical Elements Optimized Lens Placement Reduces Flare STM Stepping AF Motor Full-Time Manual Focus Override Optical Image Stabilizer Retractable Design for Compact Profile