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📸 Zoom into the extraordinary — master every shot with manual precision!
The BENOISON 420-800mm telephoto lens is a full manual focus zoom lens designed exclusively for Canon RF mount mirrorless cameras. Offering an impressive super telephoto range with a fixed aperture of f/8.3-16, it delivers sharp, detailed images for wildlife and moon photography enthusiasts. Its upgraded RF mount eliminates the need for adapters, ensuring seamless compatibility with Canon EOS R series models. Built with durable materials, this budget-friendly lens is perfect for photographers seeking hands-on control and extended reach.
| ASIN | B0DQNRY2DR |
| Best Sellers Rank | #16 in SLR Camera Lenses |
| Brand | BENOISON |
| Built-In Media | Lens Cleaning Cloth, Telephoto Lens RF mount, User Manual |
| Camera Lens | Manual focus 420-800mm telephoto lens (RF mount) |
| Camera Lens Description | Manual focus 420-800mm telephoto lens (RF mount) |
| Color | Black |
| Compatible Camera Models | Canon EOS R10, Canon EOS R3, Canon EOS R5, Canon EOS R6, Canon EOS RP |
| Compatible Camera Mount | Canon RF |
| Compatible Devices | for Canon RF mount mirrorless cameras |
| Compatible Mountings | Canon RF |
| Customer Reviews | 3.6 out of 5 stars 78 Reviews |
| Exposure Control Type | Manual |
| Focal Length Description | 420-800mm |
| Focus Type | Manual Focus |
| Image stabilization | No image stabilization |
| Lens | Telephoto |
| Lens Design | Zoom |
| Lens Fixed Focal Length | 42 centimeters |
| Lens Mount | Canon RF |
| Lens Type | Telephoto |
| Manufacturer | BENOISON |
| Manufacturer Part Number | 420-B-RF |
| Maximum Aperture | 8.3 f_stop |
| Maximum Focal Length | 80 centimeters |
| Media Type | ProductImage |
| Minimum Aperture | 16 f_stop |
| Minimum Focal Length | 42 centimeters |
| Model Name | 420-B |
| Number of Items | 1 |
| Photo Filter Size | 6.2 centimeters |
| Real Angle Of View | 5 degrees |
| Warranty Description | 1 year |
| Water Resistance Level | Not Water Resistant |
| Zoom Ratio | 1.9 |
R**G
Great price and quality
I'm a novice when it comes to photography, and I've never used a ridiculously expensive lens, so I can't speak to comparisons, but I love the shots I get with this one. A tripod is definitely a must use, and I don't have a remote, so I use the camera timer to let it settle down after pushing the button. I have a Canon R100, and it fit right up. With some time and effort in making those adjustments, I can say I'm fully satisfied with the results. Pictures are 2 at 800mm and one at 600mm
S**M
It's alright (Read)
This is amazing for the price, but it lacks autofocus and has a somewhat pixelated image. You get what you pay for, and it's also pretty shaky, but still great.
M**C
Can see far but shots won't be clean. Might damage sensor
Nice to see really far however.. lots of particles in between the lenses. Was also releasing little fragments that got onto my sensor. Can't seem to get a good clean shot.
G**A
Item was delivered on time
The product is good
F**A
Not a bad lens.
Bought this as a cheap lens for my journey into astrophotography. Good lens for the price.
L**Y
Way better then I was expecting for the price.
It take some getting used to. You have to adjust it yourself. So not for really fast shots, but it absolutely work. I took a crystal clear shot from roughly a quarter mile away with my r50 considering professional lenses similar to this are thousands of dollars. This for 70 is amazing. Not really close to the thousand dollar ones, but way beyond what I was expecting.
J**E
Good product, poor quality control.
Overall, the lens assembly seems well built and functionally sound. My biggest gripe and grounds for my poor review is a quality control issue. There are artifacts in my pictures that are clearly dirty lenses. After careful and thorough efforts, I conclude the dirt contamination is internal and one I cannot rectify. That is very disappointing since the lens is otherwise quite good optically with minimal loss of focus when changing zoom levels. This is an example where one detail in quality control can completely sour a customer's take on your product.
R**E
Won't let me shoot pictures
It dos fit my camera, however it will not work. since I didnt have the opportunity to use it until 10/4/25 my review is late. It will not take photos. I'm stuck with a lens that does not work.
S**E
Ottimo teleobiettivo basta fare un pò di pratica e di pazienza.
Niente male inizialmente è un po' difficile da capire ma poi capisci che è una cavolata, per Canon R100
M**E
Does the job
Very difficult to use. You most definitely need a good strong tripod.
M**C
delivré dans les delais
tres satisfait
L**S
El objetivo cumple.
Llegó en buen estado,buen embalaje, el objetivo con un trípode cumple bastante bien, no olvidemos su precio. solo lo he probado un par de veces fotografiando desde el balcón de casa y quedé satisfecho. En las fotos la distancia del pájaro es de unos 200 metros.
S**E
Für mich zu umständlich
Leider für mich zu aufwendig, da alles manuell eingestellt werden muss. Kann daher von der Bildqualität nichts sagen. Es ging zurück
Trustpilot
1 week ago
2 weeks ago