SIGMA 18-50MM F/2.8 DC DN CONTEMPORARY LENS FOR SONY E BUNDLE INCLUDES: 55mm Filter Kit Lens Cleaner ProOPTIC Wrap Cap Tether Software Kit Cleaning Kit FAST F2.8 CONSTANT APERTURE: Ensures excellent low-light performance and smooth background blur. COMPACT STANDARD ZOOM RANGE: Covers wide-angle to short telephoto for everyday shooting. DC DN DESIGN: Optimized for APS-C Sony E-mount mirrorless cameras with lightweight construction.