Sigma AF 400mm f/5.6 APO (1988-1995) / Test and Sample Images
Amazon.com : Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens for Canon EF Bundle with USB Dock, 32GB SD Card Bundle, and Photography Cleaning Kit (4 Items) : Electronics
Review: Sigma 100-400mm F5-6.3 DG OS HSM Contemporary Lens