Key Features APS-C | f/1.4 to f/16 25.6mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction

Key Features APS-C | f/1.4 to f/16 25.6mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction

Key Features APS-C | f/1.4 to f/16 24mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction

Key Features APS-C | f/1.4 to f/16 24mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction

Key Features APS-C | f/1.4 to f/16 24mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction

Key Features Micro Four Thirds | f/1.4 to f/16 32mm (Full-Frame Equivalent) Rounded 9-Blade Diaphragm Stepping Motor AF System Super Multi-Layer Coating Two Aspherical Elements Two SLD Elements, Three FLD Elements Weather-Sealed Construction Sigma 16mm f/1.4 DC DN Contemporary Overview Sigma...

Key Features APS-C | f/1.8 to f/16 25.5 to 60mm (Full-Frame Equivalent) Superfast Wide-to-Normal Zoom HLA Autofocus 11" Minimum Focus Distance Aperture Ring with Click & Lock Switches SLD and Aspherical Elements Water- and Oil-Repellent Coating Dust & Splash Resistant...

Key Features APS-C | f/1.8 to f/16 25.5 to 60mm (Full-Frame Equivalent) Superfast Wide-to-Normal Zoom HLA Autofocus 11" Minimum Focus Distance Aperture Ring with Click & Lock Switches SLD and Aspherical Elements Water- and Oil-Repellent Coating Dust & Splash Resistant...

Key Features APS-C | f/1.8 to f/16 25.5 to 60mm (Full-Frame Equivalent) Superfast Wide-to-Normal Zoom HLA Autofocus 11" Minimum Focus Distance Aperture Ring with Click & Lock Switches SLD and Aspherical Elements Water- and Oil-Repellent Coating Dust & Splash Resistant...

Key Features Full-Frame | f/4 to f/22 Compact Ultra-Wide Angle Prime Fast Internal Focus System I Series Lens All-Metal Lens Barrel Dust & Splash-Resistant Design Knurled Focus and Aperture Rings Rounded 7-Blade Diaphragm Sigma 17mm f/4 DG DN Contemporary Overview Packing...

Key Features Full-Frame | f/4 to f/22 Compact Ultra-Wide Angle Prime Fast Internal Focus System I Series Lens All-Metal Lens Barrel Dust & Splash-Resistant Design Knurled Focus and Aperture Rings Rounded 7-Blade Diaphragm

Key Features Full-Frame | f/4 to f/22 Compact Ultra-Wide Angle Prime Fast Internal Focus System I Series Lens All-Metal Lens Barrel Dust & Splash-Resistant Design Knurled Focus and Aperture Rings Rounded 7-Blade Diaphragm