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Review: Meike MK-EFTR-A Lens Mount Adapter



Overview : This Meike Lens Mount Adapter allows a Canon EF/EF-S-mount lens to be used on a Canon RF-mount mirrorless camera. Electronic communication between an attached camera and lens is supported, enabling autofocus as well as auto exposure features. If an attached lens is capable of generating Exif metadata, this adapter is designed to transfer that information so that it can be saved with image files generated by a compatible lens and Canon-RF mount camera. Constructed with aluminum alloy, this adapter is durable while remaining lightweight.

Features :
  • Allows a Canon EF or EF-S-mount lens to be used on a Canon RF-mount camera
  • Supports electronic communication to enable autofocus as well as auto exposure features
  • Can transfer EXIF data from lens to camera, saving aperture, speed, and time of capture information to image or video files
  • Aluminum alloy mounting ring provides a lightweight and durable camera-to-lens connection

Quality/Usability : With the release of the Canon R5 and R6, trying to find a basic lens mount adapter or the control ring mount adapter from AmazonB&H PhotoAdorama or Canon's online store is impossible to find unless you're willing to pay eBay's price gouged pricing.

Meike has thrown their hat into the EF-RF lens mount adapter market. They're mostly known for manual focus lenses, extension tubes, flashes and battery grips. But I wanted to check out the Meike mostly because of the weather sealing gasket and how it compares to the Canon lens mount adapter.


When you purchase the Meike MK-EFTR-A Lens Mount Adapter, you're not going to get much. All you get is what you see; lens mount, caps and a silica packet to absorb moisture (not pictured). No pamphlets or pouch.


The lens mount has a matte finish with some texture that closely matches the body of the Canon body. At the very top is the Meike logo, type of product and indicators.

The two indicators on the outside of the lens mount is to line up the lens mount to your R series camera (red line) and the red square indicator is to line up EF-S lenses.

The bottom has all the certification logos. On the side is your lens release button.


Like the OEM Canon lens mount adapter, there are pins to allow communication between your lens and R series camera.

On the inside, you have a red dot indicator for mounting EF lenses.


One of the features that the Meike lens mount adapters separates themselves from other 3rd party adapters is the inclusions of the weather sealing gasket. This seals any gaps there might be between the adapter and camera body.

No gasket is required on the other side since the lens itself will have the gasket (if applicable). Similar to the bayonet on camera bodies.


Above is a side by side comparison between the Meike adapter and the OEM Canon Control Ring Adapter. Size comparison, the Meike is a smidge smaller compared to the Control Ring version.

The lens release button on the Meike half the width of the Canon version. I would have like to see this be about the same size and it does have a little wiggle/play but nothing major from what I can tell that would cause any major issues.


The lens mounted nicely to my R6. I had no problems getting it on and off. The adapter fit snug onto the camera and didn't have any play between the mount adapter, camera body or lens. The EF 85mm f1.2L II fit nicely onto the adapter.


I also attached an older EF 16-35mm f2.8L and the EF 70-200mm f2.8L IS III and those fit nicely as well. Even with the heavy lens, it didn't feel like the adapter was going to break or cause any damage to the lens or camera.

But most importantly, how is the auto focus?! The adapter worked flawlessly. I didn't notice any issues with AF or any sluggishness. The adapter worked just as well as the Canon counterpart.

Below is our unboxing, overview and comparison video.


Conclusion : Overall, the Meike MK-EFTR-A Lens Mount Adapter was very close to getting a perfect score. It has a nice finish, the inclusion of the weather sealing gasket is a HUGE plus but the only thing that I wished they improved or made better was the lens release button. It just felt a little flimsy compared to the Canon version.

I've seen and read peoples hesitation of getting 3rd party adapters or wanting to stick with Canon adapters only for various reasons ie, concerns of compatibility, prefer OEM only, etc. However, if haven't unloaded your EF lenses and switched over to RF lenses or can't get the Canon adapters, this is a great alternative and temporary placeholder until you can get your hands on the Canon version. Some people have multiple EF lenses and don't want to constantly swap lenses on the adapters but rather leave the adapters onto each lens, this can get costly especially with the OEM adapters.

There are other 3rd party lens mount adapter. You can check out the list that we compiled here.






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