---
product_id: 701936838
title: "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"
brand: "benoison"
price: "KSh26976"
currency: KES
in_stock: true
reviews_count: 13
category: "Benoison"
url: https://www.desertcart.co.ke/products/701936838-telephoto-lens-for-canon-rf-lens-420-800mm-manual-focus
store_origin: KE
region: Kenya
---

# 420-800mm super telephoto zoom Full manual focus precision Durable high-quality build 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

**Brand:** benoison
**Price:** KSh26976
**Availability:** ✅ In Stock

## Summary

> 🔭 Capture the unseen. Own the extraordinary.

## Quick Answers

- **What is this?** 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 by benoison
- **How much does it cost?** KSh26976 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/701936838-telephoto-lens-for-canon-rf-lens-420-800mm-manual-focus)

## Best For

- benoison enthusiasts

## Why This Product

- Trusted benoison brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Robust construction ensures your lens withstands every adventure and shoot.
- • **Master Your Focus:** Full manual focus control for creative precision and expert-level framing.
- • **Seamless RF Mount:** Direct RF mount compatibility with Canon R series mirrorless—no adapter needed.
- • **Unlock Manual Magic:** Enable 'Release shutter w/o Lens' and shoot confidently in full manual mode.
- • **Epic Reach, No Limits:** Zoom from 420mm to 800mm for breathtaking distant shots.

## Overview

The BENOISON 420-800mm RF telephoto lens is a fully manual zoom lens designed exclusively for Canon EOS R series mirrorless cameras. Featuring a fixed aperture range of f/8.3 to f/16, it offers an ultra-telephoto reach ideal for wildlife, moon, and distant landscape photography. Its durable build and direct RF mount eliminate the need for adapters, while manual focus demands skillful control, making it a budget-friendly choice for enthusiasts ready to elevate their long-range shots.

## Description

desertcart.com : 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 : Electronics

Review: Quality Lens - Great lens for the price. Only downside is that it is fully manual and not able to do autofocus. This makes it hard to capture birds in flight and get detailed photos. But for still instances, it works well with expertise and practice. Here are some of the pictures I have taken with it. I have had this lens for a year now, now upgrading to a Sigma 150-600 mm lens for the Autofocus capabilities. I really appreciated this lens for the convenient price.
Review: 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.

## Features

- 【Super Telephoto Lens】Manual 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 Camera】420-800mm 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 Version】Upgraded 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 Instraction】This 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 Focus】The 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).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DQNRY2DR |
| Best Sellers Rank | #11 in SLR Camera Lenses |
| Customer Reviews | 4.0 4.0 out of 5 stars (599) |
| Date First Available | December 17, 2024 |
| Item Weight | 1.83 pounds |
| Manufacturer | BENOISON |
| Product Dimensions | 9.45 x 2.64 x 2.64 inches |

## Product Details

- **Brand:** BENOISON
- **Camera Lens Description:** Manual focus 420-800mm telephoto lens (RF mount)
- **Compatible Mountings:** Canon RF
- **Focal Length Description:** 420-800mm
- **Lens Type:** Telephoto

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61v5KfuXrzL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71WUBIXT2cL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71B+AzNnVDL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71wp+rcyKAL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71zDpPPONnL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Why can't I press the shutter after mounting the lens?**
A: Please do Enable the "Release shutter w/o lens", and then you can press the shutter to take a picture.

**Q: Why does my picture out of focus and very blurry?**
A: Since our lenses are manual lenses, there are no electronic contacts for autofocus. Need to turn the focus ring (on the front of the lens) for manual focusing. If it is still blurry, use a tripod and time-lapse function to keep the image stable.

**Q: Why is F00 displayed and how can the aperture value be set?**
A: As the manual lens has no electronic contacts to recognize the aperture value, “F00” is displayed. The aperture value can only be adjusted automatically by changing the focal length. (420mm/F8.3 →500mm/F10→600mm/F12→700mm/F14→800mm/F16)

**Q: What if the image turn out bright?**
A: If the image is too bright, lower the ISO (e.g. from 200 to 100) to reduce the light sensitivity and increase the shutter speed (e.g. from 1/125s to 1/250s) to reduce the exposure and avoid overexposure.

**Q: What if the image turn out dark?**
A: If the image is too dark, increase the ISO (e.g. from 800 to 1600) to increase the sensitivity and decrease the shutter speed (e.g. from 1/250s to 1/125s) to allow more light onto the sensor.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality Lens
*by P***R on January 1, 2026*

Great lens for the price. Only downside is that it is fully manual and not able to do autofocus. This makes it hard to capture birds in flight and get detailed photos. But for still instances, it works well with expertise and practice. Here are some of the pictures I have taken with it. I have had this lens for a year now, now upgrading to a Sigma 150-600 mm lens for the Autofocus capabilities. I really appreciated this lens for the convenient price.

### ⭐⭐⭐⭐ It's alright (Read)
*by S***M on January 6, 2026*

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.

### ⭐⭐⭐⭐⭐ Great price and quality
*by R***G on December 5, 2025*

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

## Frequently Bought Together

- 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
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- Ultra Deluxe Lens Kit for Canon Rebel T3, T5, T5i, T6, T6i, T7, T7i, EOS 80D, EOS 77D Cameras with Canon EF-S 18-55mm is II Lens - Includes: 7pc 58mm Filter Set + 58mm Wide Angle and Telephoto Lens

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-02*