EF Lens for Canon - Telephoto Lens 420-800mm f/8.3 Manual Zoom Lens for Canon EOS Rebel T3 T3i T4i T5 T5i T6 T6i T6s T7 T7i T8i SL1 SL2 6D 7D 7D 60D 70D 77D 80D 5D II/III/IV SLR Camera Lenses - BENOISON, B-420-800b

• 【Note】: Our lenses are thoroughly checked and if they don't work, it's basically an operational and setup issue. Please feel free to contact us for more information on the settings and using. Meanwhile, manual lenses all need to be used by buyers with shooting experience. It is not recommended for beginners. 【Setting】: This is a manual lens, NO Electronic Contacts, your camera will not detect the lens when mounted, that's why we can't press the shutter (for most Canon cameras). In this case, please find the "Release shutter w/o lens" in the menu and "Enable" it. Then it will work fine. If you still can't press the shutter, please set the camera to "MF". 【Manual Focus】: Please rotate the focus ring of the lens to achieve focus. Shutter speed and ISO need to be adjusted in general, so it is recommended to use it at "MF". At the same time, due to the large magnification of the telephoto lens, the slightest shaking of the hand greatly affects the quality of the picture, so pls use it with a tripod. 【EF Lens for Canon】: 420-800mm f/8.3-16 Manual Telephoto Zoom Lens Compatible/Replacement for Canon EOS Rebel T8i, T7, T7i, T6, T6i, T5, T5i, SL2, 80D, 77D, 700D, 70D, 60D, 50D, 5D, 6D, 7D, 600D, 550D, 200D, 150D, 100D, 1300D, 1400D, 1500D etc. If you have other model/brand of camera(such as RF lens), please feel free to contact us as well. We will provide you with the proper&free T-ring. 【Usage】: Equipped with ultra-high-definition multi-layer optical components and aluminum alloy housing. For those who photograph wildlife or the moon as a hobby, this lens would be a great choice.