Brand Tamron Lens Type Zoom Compatible Mountings Canon EF Camera Lens Description 600mm Maximum Focal Length 600 Millimeters About this item State-of-the-art USD (Ultrasonic Silent Drive) motor for super fast whisper quiet focusing Three-coil electromagnetic VC image stabilization system provides a 4-stop handling advantage for significantly sharper images BBAR (Broad-Band Anti-Reflection) Coating helps suppress flare and ghosting for class-leading image quality. Advanced eBAND coating technology improves lens performance Moisture-resistant construction helps prevent moisture from penetrating the lens