Canon EF-S 24mm f/2.8 STM Lens
EF-S Mount Lens/APS-C Format 38mm (35mm Equivalent) One Aspherical Element Optimized Lens Coatings STM AF Motor Supports Movie Servo AF Micro-Stepping Drive Aperture Mechanism Full-Time Manual Focus Override Rounded 7-Blade Diaphragm Slim Design Measures Less Than 1-Thick From the Manufacturer EF-S 24mm f/2.8 STM Incredibly lightweight, the EF-S 24mm f/2.8. STM is a fast and versatile lens with advanced AF and superior optics.