EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens(MF) for Canon EOS Rebel T8i/T7i/T7/T6i/T5/T3i/T2i/XSi/SL3/SL2/T100/90D/80D/70D/50D/5D Mark IV/6D II/7D II/1D X III II-Manual Focus DSLR Cameras Lenses(Black)
Price: $67.99
(as of Feb 03, 2026 02:46:43 UTC – Details)
Product description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Full Manual Lens: Adjust to M Mode for Use
Support Canon EOS Rebel T7 T7i T6 T8i T6s T6i T5 T5i T4i T3i T3 T2i SL3 SL2;EOS 90D 80D 77D 70D 60Da 50D 40D 30D 20Da 20D 10D 4000D 3000D 1500D 1000D 1D X Mark III/II/1DX, 5D Mark IV/III/5DS/5DS R, 6D Mark II/6D,7D Mark II, EOS Kiss X10i X10 X9i X9 X8i X7i X6i X5 X4 X3 X2 X70 and other EF cameras.
Lightdow 420-800mm Telephoto Zoom Lens
This is a Full Manual Lens, no electronic communication with the camera body, and the settings, including the F-number, are adjusted manually using physical controls on the camera lens itself. Therefore, the camera usually cannot display the F-number (only F00 or F– is displayed).
420-800mm EF Lens
420-800mm Different Mount
EF Mount
Lens Mount
F Mount
420-800mm
Manual Focus
Auto Focus
62mm Filter Size
EF Mount
Lens Mount
EF Mount
420-800mm
Manual Focus
Auto Focus
62mm Filter Size
420-800mm F Lens 
420-800mm EF Lens 
Why are my photos out of focus and very blurry?
Before taking a picture,turn the focus ring on the lens body to focus.If the image is still blurry,we recommend using a tripod,shutter release cable,and time-lapse function to stabilize the image.
Why I can not press the shutter after attaching the lens?
Our 420-800mm lens is a manual focus lens without electronic contacts,so please set your camera to M mode.
What is the filter size for this 420-800mm telephoto lens?
The filter size is 62mm
Why is the aperture value not displayed?
This is a fully manual lens with no electronic communication with the camera body,and the aperture varies with the focal length of the lens.Therefore,the
camera typically cannot display the F-number
If the picture is too dark, it can be remedied by:
Reduce the shutter speed from 1/500 sec. to 1/100 sec. or slower, such as 1/50 sec.
Increase the ISO number from ISO 100 to ISO 200/400/800, etc.
Switching positions to allow more ambient light to enter the camera’s imaging sensor through the lens.
[Easy-to-Use Warm Tips] – ⚠Fully manual(Advantages: precise focus control, creative freedom, high adaptability, stability and durability, and learning value) lens has no electronic contacts for focusing. Switch the camera to full manual (M) mode immediately after installation, otherwise the “no lens” error may be triggered; ⚠If the error still occurs, you need to enable the “Release shutter without lens” option in the camera menu.
[Professional Manual Focus Experience] – Tailored for photographers who pursue the ultimate, the 420-800mm F8.3 lens adopts a fully manual focus design, requiring photographers to carefully adjust parameters such as shutter speed, ISO and aperture before shooting. This process not only exercises photographic skills, but also inspires unlimited artistic creativity, helping you to transcend conventions and explore the infinite possibilities of photography.
[Telephoto Zoom Lens] – Features include precision manual focus with a large focus ring design and an internal focus mechanism, UMC technology to minimize aberrations and flare. The aperture automatically adjusts based on focal length (f/8.3 at 420mm, f/16 at 800mm), and it is compatible with 62mm filters and EF/EF-S mounts.
[Wide Compatibility with Canon EF/EF-S Mount] – Lightdow 420-800mm f8.3 telephoto lens is perfectly compatible with for Canon EOS Rebel T8i/T7i/T7/T6s/T6i/T6/T5i/T5/T4i/T3i/T3/T2i/T1i/XSi/XS/SL3/SL2/SL1(100D) & Digital Rebel/XTi/XT/T100(4000D) & EOS 90D/80D/77D/70D/60D/50D/40D/30D/20D/10D/7D Mark II/7D/6D Mark II/6D/5DS R/5DS/5D Mark IV/5D Mark III/5D Mark II/5D & EOS-1D X Mark III/1D X Mark II/1D X/1Ds Mark III/1Ds Mark II/1Ds/1D Mark IV/1D Mark III/1D Mark II/Mark II N/1D.
[Capture Capabilities] – 420-800mm manual focus telephoto lens excels at capturing detailed images of distant subjects, effectively bringing remote objects closer. It is ideal for photographing the moon, wildlife, birds, buildings, airplanes, landscapes, and more. The aperture range is F8.3-16, and it automatically adjusts with the focal length. Consequently, the camera cannot set the aperture value of the manual lens, resulting in the display of F00/F– on the camera.
