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EF/EF-S 420-800mm F8.3 Telephoto Zoom Lens(MF) + T-Mount 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 DSLR Cameras Lenses

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Availability: Only 5 left in stock, order soon!
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Arrives Tuesday, Aug 19
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Style: 420-800mm For Canon EF/EF-S Mount


Features

  • [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 (common on Nikon/Sony models, etc.).
  • [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.
  • [Super Telephoto Zoom Lens] - The 420-800mm f/8.3-16 full-frame zoom lens is designed specifically for professional photographers. It includes an adapter ring at no additional cost. Features include precision manual focus with a large focus ring design and an internal focus mechanism, UMC technology to minimize aberrations and flare, resulting in sharp images with exceptional background bokeh. 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.

Brand: lightdow


Focal Length Description: 420-800mm


Lens Type: Telephoto


Compatible Mountings: Canon EF


Camera Lens Description: 420-800mm f/8.3-16 Manual Telephoto Zoom Lens


Product Dimensions: 9.45 x 2.75 x 2.75 inches


Item Weight: 1.76 pounds


Item model number: KD-420800-T-N


Is Discontinued By Manufacturer: No


Date First Available: April 12, 2015


Manufacturer: lightdow


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews


  • Really nice lens for the money
Style: for Nikon F (DSLR's)
As pics show, these all shot at full 800mm. No tripod, all hand shots. It is going to add some bulk, but if you have good methods of holding telephoto lenses you know how to do it. I just got this today, and the quality is really nice for the 80 or so bucks spent. This resolves nicely on my D750 though it shows DX, and crops the image. It didn't state DX lens in the order details or description, but I assumed it would be. Full frame tele lenses just don't come with $80-100 price tags. Build quality is great too... again for the price. Focus ring is tight, and I like that. Most kit lenses DX lenses are on the loose focus ring side of things. Too easy to move. The lens cap is the weakest point. Spring was stuck. I can get another if needed. Not a big deal. This basically makes your camera look like a small telescope. The included T ring for the lens is nicely made. No issues, all metal and has 3 small allen screws for extra security to the lens mount. Comes with lens caps, faux leather case. Some chromatic aberration is to be expected, but overall if your subject is center, it's not bad. The flag picture above with the cloud background was shot at the full 800mm. The problem I had in my camera was not being able to set the Aperture. It fixed at F22. Auto ISO did well enough for most shots. I bought this to photo rocket launches as well. Great lens, awesome price!!! Not good in low light though, so don't expect much there. Should work better on a tripod for moon, or even bright planets. Going to try getting Jupiter and it's bigger moons. ... show more
Reviewed in the United States on July 26, 2019 by PMT PMT

  • This lens has a purpose
Style: 420-800mm For Sony E-mount
Simple, honest review as to why I gave it five stars. Likes: price is unbeatable, seems to be well made out of metal not plastic, light weight, narrow design, excellent sharpness at 800mm for the price Dislikes: chromatic aberration is sinful, the screw on camera mount doesn’t stay tight, the tripod mount seems a little flimsy, not weather sealed, no aperture ring, no filter threads and the vinyl pouch is an abomination. This lens is excellent if you want to use it to survey an area from a long distance away, without spending the king’s fortune on a high dollar lens that weighs 16 lbs and is 5 ft long and 1 ft wide. A drone might work also but it’s not going to cost $66. That’s why I gave it five stars :) You might be disappointed if you’re a high priced photographer like myself, who sells his images for a living. This is not that kind of lens. Although I did get some sharp ones out of it. ... show more
Reviewed in the United States on July 18, 2024 by Honest Reviewer Honest Reviewer

  • Better than expected.
Style: 420-800mm For Canon EF/EF-S Mount
I opened the box 10 min ago. The lens easily attached to my Canon Rebel using the provided T mount adapter. The hex tool also porvided was not needed. Its a manual focus lens so I had some concerns but I was able to focus the lens faster than my standard ef-s lenses set on auto focus. Picture quality is yet to be determined but the image on the cameras viewing screen is impressive. In my novice opinion this lens is worth twice the price. Another plus is I receved the lens in perfect condition 2 days early. When purchasing in the future I will be checking this companys lenses first. ... show more
Reviewed in the United States on January 2, 2023 by E T Sine

  • Tripod Mounting Ring Broke
Style: for Nikon F (DSLR's)
The lens itself was impressive. I wasn't expecting much as it was pretty inexpensive, but my initial pictures were pretty good! Yes, using a tripod is needed unless you're very lucky. Yes, manual focus is a hassle, but that's the way it was in the old days so, suck it up - LOL! It still was well worth the cost - until the metal on the tripod mounting ring broke after only trying it out about 4 times in 6 months. Now, I cannot reliably mount the lens at all and I'm not going to risk my camera, hoping it will just stay. Because of the cheap steel they used, it's pretty much useless now. ... show more
Reviewed in the United States on May 30, 2024 by RKC RKC

  • Affordable...but not worth it.
Style: for Nikon F (DSLR's)
You get what you pay for. It is an affordable alternative to name-brand lenses. The issue is, you have to be in manual mode to even use it, so you're constantly needing to adjust and readjust the lens to keep your subject clear. The output, once you look at the photos in post, shows soft, rounded edges and pixelation. So the lens really is just a piece of glass that doesn't entirely interface with your DSLR, resulting in less than top-quality photos. This lens shines best for night photography, capturing the moon or some distant wildlife. Again, you get what you pay for. ... show more
Reviewed in the United States on July 28, 2025 by Ross

  • Great lens
Style: for Nikon F (DSLR's)
A little tricky to learn to manually focus but once you get used to it the lens is fantastic. Took it to Yosemite and could zoom in on the people up on half dome from across the valley. First picture is to show distance. Second picture it the tip of half dome
Reviewed in the United States on July 18, 2025 by Misty Pinter Misty Pinter

  • Exceeded my expectations
Style: for Nikon F (DSLR's)
I am extremely pleased with this. For the price I was expecting something cheaply made, impossible to use. There was no way I could get good pictures, I thought. First off, it's very well constructed. Heavy, sturdy steel. The lenses seem crystal clear. It feels like a more expensive item. It's not some 3D printed, mass produced piece of crap. Definitely worth more than the price, as far as workmanship is concerned. Secondly, I was pleasantly surprised with the picture quality I got. Of course the first pictures I took were of the moon (like everyone else). You can actually see craters. The picture of the rabbit--that's from about 50 feet away, hand held, no tripod. You can see for yourself the color and the clarity. Now, this IS a manual lens. I'm using a Nikon D3200, very basic DSLR, set to MANUAL. After experimenting with different ISO's and shutter speeds, and some pictures that didn't turn out, I think I got the hang of it. For the moon picture I did have to mount it on a tripod and use the timer release to click the shot, to minimize blur. But you can get good pictures without a tripod for distances up to about 50 feet. Definitely worth the price. I wasn't quite ready to invest in a $3000-10,000 lens. This does what I need it to do. ... show more
Reviewed in the United States on August 27, 2020 by Noel Alcoba, Author Noel Alcoba, Author

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