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VILTROX

VILTROX EF-EOS M2 Speed Booster 0.71x Canon EF Lens to EF-M Mount Speedbooster for Canon m50 ii m6 ii m200 m50 m6 m5

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Size: EF-M Speed Booster


Features

  • Allows the aperture increased by one level while the focal length is reduced (equivalent focal length= focal length x 0.71 x 1.6), increase the lens 1 f-stop, Bring better photo bokeh.
  • Signal transmission using PIN gold needle, greatly enhanced its transmission performance, real-time preview of photo information on camera, full compatible with Canon lens and camera features, e.g. autofocus, image stabilization, auto aperture adjustment, etc.
  • 4 lens elements in 4 groups for optical clarity as well as color fidelity.Detachable tripod foot with 1/4"-20 accessory thread for direct attachment to tripods or quick release plates that feature 1/4"-20 mounts.
  • USB upgrade port: Through continuous software updates, VILTROX will help users get better shooting experience, fix product bugs and constantly adapt to the new EF lens, provide more Canon lens and camera combinations.

Brand: VILTROX


Focal Length Description: 25 millimeters


Lens Type: Standard


Compatible Mountings: Canon EF-M


Camera Lens Description: 4


Package Dimensions: 4.3 x 4 x 2.5 inches


Item Weight: 5.1 ounces


Item model number: EF-EOS M2


Is Discontinued By Manufacturer: No


Date First Available: November 1, 2018


Manufacturer: Shenzhen Jueying Technology Co., Ltd.


Country of Origin: China


Frequently asked questions

A speed booster, like the VILTROX EF-EOS M2, is an adapter that allows you to use Canon EF lenses on EF-M mount cameras, such as the Canon M50 II or M6 II, among others. Besides enabling the lens mount compatibility, it also effectively reduces the focal length multiplier by 0.71x, which means you get a wider field of view and more light, enhancing low-light performance and potentially improving image quality.

While the VILTROX EF-EOS M2 is designed to adapt Canon EF lenses to EF-M mount cameras, there might be compatibility issues with certain lenses, especially third-party ones. However, most Canon EF lenses, including primes, zooms, and professional L-series lenses, should work well with this adapter, providing full electronic communication for autofocus and aperture control.

The VILTROX EF-EOS M2 adapter is designed to maintain electronic communication between the Canon EF lens and the EF-M mount camera, supporting autofocus functionality. While in most cases, autofocus speed and performance are preserved, there might be slight variations depending on the lens and camera model used. Some users may experience a minimal lag in autofocus speed, but it generally remains functional for most photography and videography purposes.

The VILTROX EF-EOS M2 includes optics that can affect the image projected onto your camera's sensor. Due to the 0.71x magnification reduction, the adapter can actually increase the amount of light entering the lens by about one stop, potentially enhancing image quality in low-light conditions. However, the impact on sharpness and distortion will vary by lens. Most users find the image quality excellent, with minimal to no noticeable degradation.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The Viltrox EF-EOS M2 Lens Adapter revolutionizes Canon M50 usage by enabling EF lens compatibility, significantly enhancing photographic capabilities. Users celebrate the adapter's ability to provide nearly full-frame imaging and an additional f-stop for lenses, thereby improving low-light performance and depth of field control. While the adapter primarily supports EF lenses, its build quality and functional integration with the camera’s electronics like autofocus and stabilization are highly praised. The product's value is underscored by its affordability and the quality it brings to photography, particularly appreciated by beginners and enthusiasts seeking professional-grade results without a hefty investment.

Pros

  • 📸 Enables EF lens compatibility with Canon M50, expanding creative options
  • 🔩 High build quality matching that of Canon's own products
  • đź’ˇ Provides an additional f-stop, enhancing low-light performance
  • 🔄 Supports autofocus and stabilization features seamlessly
  • đź’° Offers great value by improving lens functionality at a low cost

Cons

  • âť— Does not support EF-S lenses with speed booster functionality
  • ⚙️ Some users experienced initial malfunctions requiring replacements

Should I Buy It?

If you own a Canon M50 and seek to enhance its photographic capabilities without breaking the bank, the Viltrox EF-EOS M2 Lens Adapter is a compelling purchase. It unlocks a broader range of lens compatibility, improves image quality in low-light conditions, and maintains integral camera functions. Though it falls short for EF-S lens owners needing speed booster capabilities, its pros overwhelmingly make it a valuable tool for photographers. Highly recommended for those looking to maximize their M50’s potential on a budget.

    • Funciona Perfecto con lentes Canon a LUMIX G100
Size: EF-M AF Mount adapter
Review Image by Fernando Perez Reyes Fernando Perez Reyes
Excelente funciona Perfecto con los lentes Canon pero los de otra marca no los toma automáticos solo manual , pero cumple con lo que buscaba pra mi LUMIX G100
Reviewed in the United States on June 12, 2025 by Fernando Perez Reyes Fernando Perez Reyes
    • Excelente
Size: EF-M AF Mount adapter
RecibĂ­ lo que pedĂ­
Reviewed in the United States on June 8, 2025 by Sara Calderon correa
    • Justo lo que esperaba
Size: EF-M AF Mount adapter
Excelente producto, sencillo de instalar, funcionĂł tal como lo necesitaba
Reviewed in the United States on May 5, 2025 by Sergio
    • ArtĂ­culo muy bueno
Size: EF-M AF Mount adapter
Excelente funcionĂł a la primera junto con mi Canon EF 50mm f/1.8
Reviewed in the United States on April 17, 2025 by Adrian Maristany
    • Fits my Canon M50 well with 50mm f1.8 lens
Size: EF-M Speed Booster
The combination of this speed booster and my Canon 50mm f1.8 lens is pretty solid! Love the quality of my photos and I can’t wait to use it more. The only con I found about this product is that it drains my battery even if my camera is off. I also read that in multiple other sources but I can confirm that it does happen. As a temporary fix, I remove the battery when my camera is idle. ... show more
Reviewed in the United States on September 30, 2024 by violanicole
    • Pretty good
Size: EF-M AF Mount adapter
Review Image by Family over Money Family over Money
Review Image by Family over Money Family over Money
Review Image by Family over Money Family over Money
Review Image by Family over Money Family over Money
Review Image by Family over Money Family over Money
Review Image by Family over Money Family over Money
So far, it exceeded my expectations. The build quality is good and the adapter works great. No delay in focus or any other mechanism.
Reviewed in the United States on February 18, 2025 by Family over Money Family over Money
    • New Life For EF Lenses On My Canon M50
Size: EF-M Speed Booster
I had an old Canon EOS 80D that broke. And still had 3 EF lenses for it just sitting around, 35-75, 70-300, and 18mm. Since I replaced the 80D with the M50, those three lenses were unusable until now. This Valtrox Lens Mount Adapter EF-EOS M2 fit my Canon M50 perfect and gave those old EF lenses new life. It’s amazing that this adapter with those old EF lenses makes the picture and video quality so much better! I was getting a communications error on the camera at first, but a simple cleaning of the gold contacts on the old lenses solved that issue. I can’t speak for the other Canon cameras this adapter will fit, but if you have a Canon M50 and some EF lenses, it’s definitely worth the investment! ... show more
Reviewed in the United States on August 6, 2024 by John Markelewicz
    • Absolutely awesome + 1 f-stop!!!
Size: EF-M Speed Booster
Review Image by David David
Review Image by David David
Review Image by David David
Review Image by David David
So I got myself a Canon M50. Very similar to the Canon 77D I already owned features-wise, but significantly smaller and lighter. I was a little bummed that I needed to get all new glass because of the EF-M mount, but then it turns out that there’s adapters that let you use your EF and EF-S lenses on the EF-M mount, albeit with the same 1.6x crop factor as my 77D, both being crop-sensor cameras. I'd been watching M50 review videos on YouTube and in one of them someone mentioned the Viltrox EF-EOS M2 Lens Adapter. Honestly, it sounded too good to be true at first. So you’re telling me I get an adapter that will make my EF lenses look almost their actual focal length (about 1.1x instead of 1.6x) AND also gain a full f-stop for about 150 USD? Yeah, right… I kept watching reviews on the Viltrox adapter until curiosity finally got the best of me. I ended up buying one from Amazon, hoping for the best. First thing I did, I had to try my beloved nifty-fifty (EF 50mm f/1.8 STM lens). Using the Viltrox adapter it now looks like a 56-57 mm lens (50 * 1.6 * .071) which is not bad at all. But wait, when using the lens and adjusting the aperture on the camera, it didn’t stop at f/1.8 but rather all the way down to f/1.2! My lens, brand new, goes for 125 USD on Canon’s website. The 50mm f/1.2 also on Canon’s website goes for 1,349 USD. I’m getting the aperture of a 1,300 dollar lens for less than 300 dollars (lens + Viltrox adapter). Sure, it’s not quite the same but I’m very much a beginner/enthusiast, so it's more than enough for me right now. That’s an excellent price point for such an awesome aperture on a prime lens. That’s only talking about the one lens, though. Got any EF lenses sitting around? Pop them into this glorious thing right here and get almost full-frame images out of them with extra aperture. Couldn’t be happier with my purchase. Get this adapter NOW! ... show more
Reviewed in the United States on August 14, 2019 by David David

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