Sigma 70-300mm f/4-5.6 DG OS (Optical Stabilizer) AF Telephoto Zoom Lens for Canon EOS + Opteka UV Filter + Opteka CPL Filter + Opteka 5 Piece Cleaning Kit Equipped with Sigma's own OS (Optical Stabilizer) function SLD glass for excellent correction of aberrations Super Multi-Layer Coating reduces flare and ghosting Compact construction For use with full frame and APS-C digital SLRs