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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 Adapter


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


Focal Length Description: 25 millimeters


Lens: Standard


Compatible Camera Mount: Canon EF-M


Maximum Focal Length: 102 Millimeters


Minimum Focal Length: 28 Millimeters


Lens Design: Zoom


Focus Type: Auto Focus


Lens Fixed Focal Length: 70 Millimeters


Zoom Ratio: 0.711


Image stabilization: Digital


Maximum Aperture: 1.4 Millimeters


Minimum Aperture: 2.2 Millimeters


Compatible Camera Models: Canon EF-M mount cameras


Lens Mount: Canon EF


Brand: VILTROX


Camera Lens: 4


Model Name: EF-EOS M2


Manufacturer Part Number: EF-EOS M2-03034-910


Unit Count: 1.0 Count


Model Number: EF-EOS M2


Item Weight: 5.1 Ounces


Manufacturer: Shenzhen Jueying Technology Co., Ltd.


Compatible Devices: Camera


Exposure Control Type: Automatic


Water Resistance Level: Not Water Resistant


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.

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.


  • If you own an M50 this product will open up you lens choices drastically.
Size: EF-M Speed Booster Adapter
This product, and all their products have changed the way I use my cameras. I can now use all my EF mount lenses with my Canon M50. The build quality is as good as Canon, or any other high end lens I've used. Fit was perfect and all electronics worked flawlessly (auto focus and stabilization). This now expands the lenses made for the M50 from 6 to all the EF lenses (which is many). The one thing to take note, before purchasing, is that only EF lenses work on this adapter and not EF-S mount lenses. I don't understand why they can't make a speed booster to allow the use of myEF and EF-S lenses though. The non speed booster version of this product (the one with no optics in it) that they make, allow me to use both types, why can't they make a speed booster that accepts all my EF and EF-S lenses like their cheaper adapter? Besides that one issue, I still recommend this product. It will open up your lens choices for your Canon M50 and is made of nothing but the best quality material. ... show more
Reviewed in the United States on October 19, 2019 by Hayes Tech

  • Love having so many lens options for my M50 now!!
Size: EF-M Speed Booster Adapter
Got this to go with a wide angle for my m50. Upon receiving it, I was surprised with how close it felt to Canon's version when it came to quality (for much less $)! It works great, the only downside I see is that it changes the minimum focusing distance a little bit, but I think that is unavoidable with a speed booster. I love the .7 x as it makes my 1.6 crop more enjoyable at only 1.12. Auto focus is super snappy, maybe even faster than with the kit lens. And best of all, the speed aspect. Getting another f. stop is great, especially when you are looking at $50-$500 difference between a f.2 lens and a f.2.8 lens. ... show more
Reviewed in the United States on April 1, 2021 by Czeth

  • New Life For EF Lenses On My Canon M50
Size: EF-M Speed Booster Adapter
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

  • First one would not work with my M50 but seller worked with me and sent replacement that works great
Size: EF-M Speed Booster Adapter
Update: Got my replacement from the seller and it works great! He was very easy to work with. I will buy from him again! Bought it to use with my Canon M50 and Canon 100mm F2.8L and Canon 24-105 F4 lenses. The adaptor worked one time. I didn't need to use it again until now and it will not work. It will not recognize an aperture and stays in manual focus (even though my camera and lens are in auto focus.) When I fully push down the shutter release button it says error: camera and lens connection is not working. I have cleaned the lens and camera connections, attached it as stated in the directions to no avail. Since it's been over 3 months, I cannot return it to Amazon but the seller is going to allow me to send it back for an exchange so I’ll repost an update once I receive it back and test it out. Service and communication from the seller as been great. ... show more
Reviewed in the United States on July 7, 2019 by Donna Graham

  • Nice little adapter
Size: EF-M Speed Booster Adapter
This is a great adapter it allows you to use you old canon lenses and still gives you crisp photos. The only drawback is that there is a crop factor
Reviewed in the United States on December 27, 2025 by Tat2dean

  • Absolutely awesome + 1 f-stop!!! Absolutely awesome + 1 f-stop!!!
Size: EF-M Speed Booster Adapter
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 Reviewed in the United States on August 14, 2019 by David

  • GAME CHANGER for Canon M mount...I have the M50
Size: EF-M Speed Booster Adapter
If you have a Canon M mount camera and EF lenses, this is a no brainer!! 1. Most efs lens will not work without heavy vignetting, might damage glass element 2. There is a glass element inside the adapter, which slight effect image quality 3. the crop factor has less effect on focal length and aperture, brings new life to your lenses 4.limited number of native M mount lenses exist, this adapter solves problems of ef primes and zooms 5.Soild hard plastic build, metal mounts and removable tripod mount (hex tool did not come with mine) 6.adapter fits flush to camera body, no wiggle/play 7.works well with manual ef lenses such as rokinon and m42 with canon adapter 8.I wish stabilization and removable nd filter slot was added to this adapter, but for the price you can't beat this!! ... show more
Reviewed in the United States on March 18, 2019 by Ques

  • Great if you have a lot of EF Glass Great if you have a lot of EF Glass
Size: EF-M Speed Booster Adapter
One thing that hasn't been clear to me and I don't blame this on the manufacture Viltrox but on the many reviews out there. I didn't notice until I began to use the speed booster that it will only work with EF Lenses, not EF-S lenses. Yes, this should have been a given with the idea being that this will take a mirrorless crop sensor camera and turn it into a full frame camera. Now on the subject of Full frame. I'm using this with a Canon M50. Which has a crop factor of 1.6. This booster gives a plus 0.71. Meaning that this crops 1.136. For example EF 50mm 1.8 with the adapter is an 80mm with the booster it is a 56.8mm and also drops the F down to 1.2. The images and video were all shot using the Canon 50m 1.8 STM. the first image is with the speed booster with aperture at1.2. The second is with the booster at 1.8. The third is with the Canon EF-m to EF adapter with the aperture set at 1.8. The video is with the speed booster. I have used this both for images and video. With video, I haven't really noticed any issues other than the motor makes does make more noise than usual and the autofocus seems slightly slower when changing the autofocus from one subject to the other. The 50mm is dead silent when used without the booster, so I'm guessing that this is the motor in the booster. When tracking I've noticed no issue beyond the focus motor sound. Who should buy this and who shouldn't? If you already have a collection of EF Full Frame lenses, slap this thing on and Bob's your uncle. If you are just starting out and on a budget, the EF-M to EF adapter may be a better option because you can use both EF and EF-S lenses. EF-S lenses tend to be cheaper and THEY WILL NOT WORK WITH THIS SPEED BOOSTER. ... show more
Reviewed in the United States on April 25, 2019 Reviewed in the United States on April 25, 2019 by DaVo

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