APS-C | f/1.8 to f/16 Aperture | 25.5mm (Full-Frame Equivalent) | Fast & Lightweight Wide-Angle Prime | STM Autofocus Motor | 2 ED & 3 HR Lens Elements
Full-Frame | f/2 to f/22 | Compact, Fast Wide-Angle Prime | Fast Internal Focus System | I Series Lens | All-Metal Lens Barrel | Dust & Splash-Resistant Design
Full-Frame | f/3.5 to f/22 | Tiny Ultra-Wide Angle Prime | Fast Internal Focus System | I Series Lens | All-Metal Lens Barrel | Dust & Splash-Resistant Design
Full-Frame | f/3.5 to f/22 | Tiny Ultra-Wide Angle Prime | Fast Internal Focus System | I Series Lens | All-Metal Lens Barrel | Dust & Splash-Resistant Design