Bundle Includes: Sigma 17mm f/4 DG DN Contemporary Leica L Bundle, Backpack, Filter Kit, Lens Cap Keeper, Cleaning Solution Cleaning Cloth, Tabletop Tripod, Air Blower, Cleaning Brush. Ultra-Wide Performance in a Compact Body Get stunning wide-angle shots without the bulk. With a 17mm focal length and a sleek 2.5 x 2' design weighing under 8 oz, this lens is ideal for landscapes, interiors, street photography, and vlogging. The f/4 aperture keeps the size minimal while delivering excellent sharpness and detail, making it perfect for travel and everyday use.. Exceptional Image Quality with Advanced Optics Built with two Special Low Dispersion (SLD) elements and three precision-molded aspherical elements, the lens minimizes chromatic aberrations and distortion while maximizing edge-to-edge sharpness. A Super Multi-Layer Coating reduces ghosting and flare, even in challenging lighting conditions, ensuring consistently crisp and clean images.. Fast, Quiet Autofocus & Close-Up