Kit includes ZEISS Milvus 15mm f/2.8 ZE Lens for Canon EF, Corel Photo-Video-Art Suite (includes Photo Mirage, Corel AfterShot Pro 3 Painter Essential 7), and Deluxe Cleaning Kit. An impressive wide-angle prime for Canon EF-mount cameras, however can also be used with APS-C models where it will provide a 24mm equivalent focal length. EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22. Five Low Dispersion Elements Two Aspherical Elements. Distagon optical concept affords high sharpness, well-corrected image quality from edge-to-edge, and very low field curvature