Aperture Range: f/2.8-22 | Designed for APS-C-Sized Sensors | 35mm Equivalent Focal Length: 18mm | Floating Element Design | Two Aspherical Lens Elements | Distagon Optical Design | Carl ZEISS T* Anti-Reflective Coating | Rigid Metal Construction | Rubberized Control Rings | Supports All Sony E Camera Functions | Zeiss India 2 Years Warranty