BENOISON Telephoto Lens Canon Manual Zoom Lens with EOS Kiss and for Canon SLR Cameras 420-800mm F8.3-16 (for EF/EF-S) [Compatible X10, X9i, X8i, X7,

This ultra-telephoto lens is a manual focus telephoto lens (not a genuine lens). It has a focal length of 420-800mm and a fixed aperture of f/8.3-16 (f/8.3 at 420mm, f/16 at 800mm). It has a 62mm filter diameter and is compatible with full-frame EF/EF-S mounts. Made with high-quality materials and a sturdy construction, this lens is durable and will last for years to come. Upgraded to EF/EF-S mount (directly mounts on Canon DSLR cameras without the need for a T-adapter ring), this lens is perfect for wildlife and lunar photography enthusiasts. EF/EF-S Mount Compatible Cameras: Canon EOS-1D series, EOS-5D series, EOS-6D series, EOS-7D series; EOS-10D-90D series; EOS Kiss series (Kiss X10, X9i, X8i, X7, X6i, X5, X4, X3, X2), 4000D, 3000D, 1500D, etc. (Not compatible with M-series and R-series mirrorless cameras) [Manual Focus Function] The lens is equipped with a focus ring. Slowly turn the ring to adjust the focus until the subject is clearly visible. [No electronic contacts/no autofocus] Because there are no electronic contacts, please use M mode (manual mode). The camera screen may display "F00" (because the aperture value is not recognized). 420-800mm telephoto lens