High Power Telephoto Lens - Achieve superior image quality with our 500mm/1000mm f/8 manual telephoto lens for Canon DSLR cameras. The high index, low dispersion multi-coated optical glass assures clear, sharp photos every time. EF-Mount Compatibility - Compatible with EF-Mount, this 500mm lens secures to your DSLR with ease, maximizing camera-lens integration for superior picture quality. This feature ensures sharp, detailed shots every time. Exceptional Magnification - The 2X Teleconverter doubles the lens power to a groundbreaking 1000mm. Whether you're capturing elusive wildlife, distant landscapes, or celestial wonders, this lens brings your subjects closer than you ever thought possible. Manual Precision - Fine-tune your shots with manual focus and aperture, giving you complete creative control over your images allowing unparalleled creative expression and versatility. Durability- Built to withstand the rigors of outdoor shooting, the lens features a robust black finish and durable construction, making it a reliable companion for your photographic adventures.