---
product_id: 468906643
title: "Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.)"
brand: "lightdow"
price: "31821 kr"
currency: ISK
in_stock: true
reviews_count: 9
category: "Lightdow"
url: https://www.desertcart.is/products/468906643-lightdow-420-800mm-f-8-3-manual-telephoto-zoom-lens
store_origin: IS
region: Iceland
---

# 420-800mm super telephoto zoom Fully manual focus & exposure control UMC multi-coating reduces flare & aberrations Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.)

**Brand:** lightdow
**Price:** 31821 kr
**Availability:** ✅ In Stock

## Summary

> 🔭 Zoom into greatness — see what others can’t!

## Quick Answers

- **What is this?** Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) by lightdow
- **How much does it cost?** 31821 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/468906643-lightdow-420-800mm-f-8-3-manual-telephoto-zoom-lens)

## Best For

- lightdow enthusiasts

## Why This Product

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

## Key Features

- • **Reach Far Beyond the Ordinary:** 420-800mm zoom lets you capture distant wildlife, moon shots, and architectural marvels with stunning detail.
- • **Master the Art of Manual Focus:** Take full creative control with precise manual adjustments—perfect for photography purists and pros sharpening their craft.
- • **Flare-Free, Crystal Clear Shots:** Advanced UMC multi-coating minimizes glare and aberrations, delivering sharp, vibrant images every time.
- • **Lightweight & Portable Powerhouse:** At just 0.78 kg, this lens balances reach and portability for on-the-go professionals who never miss a moment.
- • **Seamless Canon EF/EF-S Compatibility:** Plug & play with a wide range of Canon DSLRs—no adapters needed, just pure shooting freedom.

## Overview

The Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens is a lightweight, fully manual zoom lens designed for Canon EF/EF-S DSLR cameras. Featuring a versatile 420-800mm focal range, UMC multi-coating for reduced flare, and a large focus ring for precise manual control, it’s ideal for capturing distant subjects like wildlife, moon, and architecture. Compatible with popular Canon models, this lens empowers photographers to refine their skills with hands-on exposure and focus adjustments.

## Description

Shop Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.). Free delivery and returns on eligible orders.

Review: Good value - Good value
Review: Good quality lens - Amazing lens, comes with adaptors and a rest.

## Features

- 【Important Usage Notes】⚠ This is a fully manual lens with no electronic contacts. After attaching the lens, switch your camera to ​Manual (M) mode​ to avoid "no lens" errors. If the error persists, enable ​​"Release shutter without lens"​​ in your camera menu (commonly found on Nikon/Sony models).
- 【Professional Manual Focus Experience】Ideal for enthusiasts who enjoy full creative control. This 420-800mm f/8.3 lens requires manual adjustment of shutter speed, ISO, and focus – helping refine your photography skills and unlock artistic potential through a hands-on approach.
- 【Super Telephoto Zoom Performance】A specialised full-frame zoom lens with a adapter ring. Features include precise manual focusing with a large focus ring, internal focus mechanism, and UMC multi-coating to reduce flare and aberrations. Aperture automatically adjusts with focal length (f/8.3 at 420mm to f/16 at 800mm). Accepts 62mm filters.
- 【Compatible with Canon EF/EF-S Mount】Works with a wide range of Canon DSLRs including: Rebel series: T8i, T7i, T7, T6, T5i, T4i, T3i, SL3, SL2, etc. EOS models: 90D, 80D, 77D, 6D Mark II, 6D, 5D Mark IV, 5D Mark III, and others.
- 【Ideal for Distant Subject Photography】Perfect for capturing the moon, wildlife, birds, architecture, aircraft, and landscapes. Note: As a manual lens, the aperture is not set by the camera and may display as "F--" or "F00" – this is normal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VZYR6UC |
| Aperture Modes | F8.3-F16 |
| Best Sellers Rank | 42,845 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 467 in Camera Lenses |
| Brand | lightdow |
| Camera Lens | 420-800mm |
| Colour | For Canon EF/EF-S DSLR |
| Country of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (647) |
| Date First Available | 12 April 2015 |
| Focus type | Manual Focus |
| Guaranteed software updates until | unknown |
| Included components | lens body, lens bag, lens front & back cover |
| Item model number | KD-420800-T-N |
| Lens Design | Zoom |
| Lens Fixed Focal Length | 800 Millimetres |
| Max Focal Length | 800 Millimeters |
| Maximum Aperture Range | f8.3-f16 |
| Min Focal Length | 420 Millimeters |
| Package Dimensions L x W x H | 27.3 x 8.5 x 8.4 centimetres |
| Package Weight | 0.78 Kilograms |
| Part number | KD-420800-T-N |
| Photo Filter Mount Type | Round |
| Photo Filter Thread Size | 67 Millimetres |
| Plug profile | Canon |
| Product Dimensions L x W x H | 24 x 7 x 7 centimetres |
| Size | Black For Canon EF/EF-S |
| Style | Black for Canon EF/EF-S |
| Water Resistance Level | Not Water Resistant |
| Zoom Type | Extended Optical Zoom |

## Product Details

- **Brand:** lightdow
- **Camera lens description:** 420-800mm
- **Compatible mountings:** Canon EF, Canon EF-S
- **Focal length description:** 800 millimeters
- **Focus type:** Manual Focus
- **Lens design:** Zoom
- **Lens type:** Telephoto
- **Lens-fixed focal length:** 800 Millimetres
- **Maximum focal length:** 800 Millimeters
- **Minimum focal length:** 420 Millimeters

## Images

![Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) - Image 1](https://m.media-amazon.com/images/I/61Nyq0-fEEL.jpg)
![Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) - Image 2](https://m.media-amazon.com/images/I/61iqW3PA9eL.jpg)
![Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) - Image 3](https://m.media-amazon.com/images/I/61rExYAkruL.jpg)
![Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) - Image 4](https://m.media-amazon.com/images/I/71ESYRFtlmL.jpg)
![Lightdow 420-800mm f/8.3 Manual Telephoto Zoom Lens with T-Mount for Canon EF/EF-S (Rebel T8i/T7/T6/T5/T4i/T3i, 250D, 6D, 5D, etc.) - Image 5](https://m.media-amazon.com/images/I/71FVsdy+PXL.jpg)

## Questions & Answers

**Q: Why can't my camera press the shutter after installation?**
A: This is a full manual focus lens, no electric contacts, your camera will not detect the lens when mounted, switch camera to M mode and then you can press the shutter and take photo.

**Q: Why does my picture seem to be blurry, out of focus?**
A: Fine tune the front focusing ring to make your target in focus.

**Q: How to do if the image turns out dark?**
A: Increase the ISO and decrease the shutter speed. If the image turns out too bright, reverse the above steps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value
*by T***A on 22 March 2025*

Good value

### ⭐⭐⭐⭐ Good quality lens
*by C***E on 22 August 2024*

Amazing lens, comes with adaptors and a rest.

### ⭐⭐⭐⭐⭐ Canon lens
*by P***L on 21 April 2025*

Excellent

## Frequently Bought Together

- EF/EF-S 420-800mm F/8.3 Telephoto Zoom Lens - Manual DSLR Cameras Lenses+ T-Mount for Canon EOS Rebel T8i/T7i/T7/T6s/T6i/T6/T5i/T5/T4i/T3i/T3/T2i/T1i/250D/750D/760D/1200D/1300D/2000D/4000D/6D/5D
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**Shop now:** [https://www.desertcart.is/products/468906643-lightdow-420-800mm-f-8-3-manual-telephoto-zoom-lens](https://www.desertcart.is/products/468906643-lightdow-420-800mm-f-8-3-manual-telephoto-zoom-lens)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-26*