Key Features
- Full-Frame | f/1.4 to f/16
- Bright, Fast Diagonal Fisheye Lens
- Optimized for Astrophotography
- High-Response Linear Actuator AF System
- FLD, SLD & Aspherical Elements
- Rounded 11-Blade Diaphragm
- Removable, Rotating Tripod Foot
- Dust- and Splash-Resistant Construction
