BENOISON Telephoto Lens for Canon - RF Lens 420-800mm Manual Focus MF Zoom Lens for Canon EOS R, Ra, RP, R3, R5, R5 C, R6, R6 Mark II, R7, R8, R10, R50, R100 Mirrorless (for Canon RF)

Super Telephoto LensManual focus telephoto lens, NOT original-lens, a focal length of 420-800mm and an aperture of F/8.3-16 (non-adjustable aperture value, f8.3 at 420mm and f16 at 800mm), filter size of 62mm, full frame, RF mount, built with high-quality materials and robust construction, making them durable and long-lasting;

RF Lens for Canon R Series Mirrorless Camera420-800mm Manual Telephoto Lens Compatible for Canon EOS R, Ra, RP, R3, R5, R5 C, R6, R6 Mark II, R7, R8, R10, R50, R100 Mirrorless Camera (Not for Canon M series Mirrorless);

Upgraded VersionUpgraded into an RF mount, which can be mounted on Canon mirrorless cameras without connecting the T adapter ring. For those who photograph wildlife or the moon as a hobby, this lens would be a great choice;

User InstractionThis is a FULL MANUAL lens, NO Electronic Contacts, your camera will not allow to press the shutter after the lens is mounted, please set the "Release shutter w/o Lens" option in the camera menu to "Enable". Tips to use our Manual Lens: 1) Set the Release shutter w/o Lens option in the camera menu to Enable. 2) Set the mode dial to Manual (M);

Manual FocusThe lens has a focus ring located near the front. Manually rotate this focus ring to adjust the focus. Turn the ring slowly until the subject you want to focus on appears sharp and clear. Also, with manual lenses, the aperture value is not displayed in the viewfinder (F00 is displayed).