Tamron 200-500mm f/5-6.3 SP AF Di LD (IF) Lens AF08C-700 B&H
Amazon.com : Tamron AF 200-500mm f/5.0-6.3 Di LD SP FEC (IF) Lens for Canon Digital SLR Cameras (Model A08E) (Discontinued by Manufacturer) : Camera Lenses : Electronics
Tamron SP AF 200-500mm F5-6.3 Di LD IF Lens Review and Specs
Jim Craige Photography | Telephoto Lens Comparison- Tamron SP AF200-500MM vs Nikon 500mm Prime