---
product_id: 259204860
title: "Mount Converter MC-21 Canon EF-L"
brand: "sigma"
price: "£395.17"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/259204860-mount-converter-mc-21-canon-ef-l
store_origin: GB
region: Great Britain
---

# Integrated LED compatibility display Compact 7x10.8x12.2 cm design Seamless EF to L-Mount conversion Mount Converter MC-21 Canon EF-L

**Brand:** sigma
**Price:** £395.17
**Availability:** ✅ In Stock

## Summary

> 🔄 Bridge your lens legacy with future-ready precision!

## Quick Answers

- **What is this?** Mount Converter MC-21 Canon EF-L by sigma
- **How much does it cost?** £395.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/259204860-mount-converter-mc-21-canon-ef-l)

## Best For

- sigma enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Travel-Ready:** Slim, lightweight design fits perfectly in your camera bag for on-the-go shoots.
- • **Effortless Lens Adaptation:** Transform your Canon EF lenses to L-Mount bodies without losing quality.
- • **Maximize Your Gear Investment:** Unlock the full potential of your existing Canon EF lenses on modern L-Mount cameras.
- • **Real-Time Compatibility Check:** Integrated LED display ensures instant confirmation of lens compatibility.
- • **Precision Engineering by Sigma:** Reliable, high-performance mount converter crafted for professional results.

## Overview

The Sigma MC-21 Mount Converter enables seamless use of Canon EF lenses on L-Mount camera bodies, featuring an integrated LED display for compatibility status and a compact form factor designed for professional photographers seeking versatile, high-quality gear adaptation.

## Description

SigmaMount Converter MC-21 Canon EF-L

## Features

- Mount Converter MC-21 Canon EF-L, Mount Converter MC-21 Canon EF-L, SIGMA
- Accessoire image & son, Dimensions de lemballage de larticle ( L x L x H) en cm : 7 x 10.8 x 12.2
- Quantité de colis darticles : 1, Mount Converter MC-21 Canon EF-L, SIGMA
- Accessoire image & son, Sigma
- Accesorio de imagen y sonido., EF-Mount Lens to L-Mount Body,Integrated LED Displays Compatibility

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q8Q6QK9 |
| Batteries | 1 12V batteries required. |
| Best Sellers Rank | #146 in Camera Lens Adapters & Converters |
| Customer Reviews | 4.2 4.2 out of 5 stars (172) |
| Date First Available | April 3, 2019 |
| Item Weight | 4.8 ounces |
| Item model number | 89E969 |
| Manufacturer | Sigma |
| Product Dimensions | 1.75 x 2.5 x 2.5 inches |

## Product Details

- **Brand:** Sigma
- **Focal length description:** 24 millimeters
- **Lens type:** Standard
- **Compatible mountings:** Canon EF
- **Camera lens description:** 7

## Images

![Mount Converter MC-21 Canon EF-L - Image 1](https://m.media-amazon.com/images/I/718jGL0ZKTL.jpg)

## Questions & Answers

**Q: Does it work with EF-S lenses?**
A: Yes it does Regards Steve 1-800-221-2253 cambridgeworld

**Q: Does continuous autofocus still work with the adapter?**
A: I could be doing something wrong however. Auto focus works using same setting when on my Panasonic 24-70 but when I attach adapter to the Ed lens it no longer works. On bhphoto they claim it does.

**Q: why are the l mount things so expense?  emount and rf adapters are so much cheaper?**
A: The Sigma adapters are the highest Quality adapters made.They are made in Japan.Regards Steve 1-800-221-2253 cambrisgeworld

**Q: Does this work with canon ef lenses or just sigma ef lenses?**
A: It does work with the canon lenses also Regards Steve 1-800-221-2253 cambridgeworld

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- Sigma MC-21 FOR Canon
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**Shop now:** [https://www.desertcart.co.uk/products/259204860-mount-converter-mc-21-canon-ef-l](https://www.desertcart.co.uk/products/259204860-mount-converter-mc-21-canon-ef-l)

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-23*