Bundle Includes: Sigma 17-40mm f/1.8 DC Art Lens (Sony E) Backpack, Filter Kit, Memory Card, Card Reader, Lens Cap Keeper, Digital Cleaning Solution, Cleaning Cloth,Tabletop Tripod, Air Blower, Cleaning Brush. Worlds First f/1.8 Zoom for APS-C Unmatched Low-Light Power Break boundaries with the first-ever APS-C zoom lens featuring a constant f/1.8 aperture across its entire 17-40mm range. Capture bright, sharp images and video in low-light environments without compromising depth of field or image quality. Perfect for shooting indoors, at night, or in natural light without a flash.. Art Series Optical Performance Prime-Like Image Quality in a Zoom Engineered with 17 elements in 11 groups, including 4 aspherical and 4 SLD elements, this lens delivers edge-to-edge sharpness and exceptional control over chromatic aberrations, flare, and ghosting. The 11-blade rounded diaphragm produces smooth, cinematic bokeh ideal for portraiture, events, or creative video work.. Pro Video Features