- Dust & splash-resistant design
- Knurled focus and aperture rings
- Rounded 9-blade diaphragm
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 Knurled Focus and Aperture Rings Rounded 9-Blade Diaphragm