Nikon F Mount Lens/DX Format | 21-30mm (35mm Equivalent) | Aperture Range: f/2 to f/22 | One Plastic-Molded Aspherical Element | Two Glass-Molded | spherical SD Elements | Two Super Low Dispersion Elements | Multi-Layer Anti-Reflection Coating | Internal Focus; One-Touch Focus Clutch | Nine-Blade Diaphragm | 2 Year Warranty
Canon EF Mount Lens/APS-C Format | 22.4-32mm (35mm Equivalent) | Aperture Range: f/2 to f/22 | One Plastic-Molded Aspherical Element | Two Glass-Molded Aspherical SD Elements | Two Super Low Dispersion Elements | Multi-Layer Anti-Reflection Coating | Internal Focus; One-Touch Focus Clutch | Nine-Blade Diaphragm | 2 Year Warranty
F-Mount Lens/FX Format | Aperture Range: f/2.8 to f/22 | Three Glass Molded Aspherical Elements | Three SD Super-Low Dispersion Elements | Multi-Layer Lens Coatings | Silent-Drive Module AF System | Internal Focus; One-Touch Focus Clutch | Nine-Blade Diaphragm | 2 Year Warranty
EF-Mount Lens/Full-Frame Format | Aperture Range: f/2.8 to f/22 | Three Glass Molded Aspherical Elements | Three SD Super-Low Dispersion Elements | Multi-Layer Lens Coatings | Silent-Drive Module AF System | Internal Focus; One-Touch Focus Clutch | Nine-Blade Diaphragm | 2 Year Warranty