Bundle Includes: Sigma 17-40mm f/1.8 DC Art Lens (Canon RF) Backpack, Filter Kit, Memory Card, Card Reader, Lens Cap Keeper, Digital Cleaning Solution, Cleaning Cloth,Tabletop Tripod, Air Blower, Cleaning Brush. Worlds First Constant f/1.8 APS-C Zoom Lens Unlock creative potential with the brightest zoom ever made for APS-C mirrorless cameras. The Sigma 17-40mm f/1.8 DC Art offers stunning low-light performance and beautifully shallow depth of field, making it ideal for portraits, events, and cinematic videowithout the weight of multiple prime lenses.. Professional Optical Performance in a Compact Form Engineered with 17 elements in 11 groupsincluding 4 aspherical and 4 Special Low Dispersion (SLD) elementsthis lens delivers exceptional sharpness, contrast, and color accuracy. Sigmas advanced optical formula reduces flare, ghosting, and chromatic aberration, providing prime-like image quality across the entire zoom range.. Optimized for Hybrid Creators and Video Shooters