Customer Ratings & Reviews

This Sigma adapter is a great investment for newer model Sony Alpha series E-mount camera systems (A7II, A7RII, A7SII, A6300, A6500). I have not tested the adapter on my A7R and A6000, but I am sure that the performance would not be that great based on the type of focusing system in those cameras. I currently shoot with a Canon 6D and 7DII and own a fair amount of Canon and other EF mount glass. I currently own an A6300 and just recently picked up an A7RII and decided to get this MC-11 to mount a few of my Sigma Art lenses. The focusing performance on these two cameras with the Sigma adapter is very near the performance of native Sony E-mount lenses. There are a few things that do not work, such as eye auto focus, but realize that we are adapting an EF mount lens on a Sony camera system and certain things just aren’t going to work. Remember that Sigma will only guarantee functionality with updated Sigma Art lenses and state that other brands and older Sigma lenses are not compatible. However, I have mounted a Tamron 24-70 and was able to achieve fairly reliable autofocus. It’s not great performance, but it does work. I have also used a few Canon EF lenses with similar results. There are a few lenses that flat out do not work such as my Tamron 70-200. So, when it comes to using other than Art series lenses you run a 50-50 on the lens working with the adapter. At this point in the game I really do not have anything to complain about on this adapter. It is a cheaper alternative to some of the other adapters out there and for the most part it works really well and is as advertised. The price point of this adapter is what got me interested in the Sigma adapter. There are other adapters on the market, but I’m not sure they can compare to the Sigma’s performance.

Works flawlessly with my Sony A7R II. Using Canon and Sigma lens, and have blazing fast autofocus, easily change aperture with the camera, EXIF data transfer. Makes the third party lenses act like native lenses. One of the best adaptors I have every used. Very happy with it.

It could be improved. There are moments when quick picture is critical and the it's slow. It's also not working with some flashes (delay picture take for 5 s - you just stand and wait).

Sigma MC-11 Canon EF lens to Sony E Mount Adapter works great. All of my Canon lenses now work on my Sony A9II. Autofocus, and apeture controls work as well as on my Canon camera bodies

Purchased this to adapt my Canon Glass to a Sony a7II. I’m pressed to say the AF is actually faster with this adapter to Sony than Canon on Canon. No light leakage or vignetting either. Awesome product!

Awesome product! Works great! Auto focus works 100%! Can’t complain!

is a best adapter me used on mi canon lens an sigma lens and work good

I was a bit wary of this particular converter i was anticipating some vignetting but on my sigma 18-35 theres absolutely none! Image quality is perfect

Best adapter ive bought for my Sony comes in handy when putting canon lens on Sony makes it look 10x better you should purchase one

Sigma is HIGH QUALITY lens's and accessories. This Mount converter allows Canon EF and EFS lens's to be used on Sony E mount cameras, BRILLIANT!

This adaptor is a great alternative to metabones. Works fast and have had no issues whatsoever. Perfect for using with my Sony camera and canon lenses.

I have a Sony mirrorless camera now and had a couple Cannon lenses I want to use with this camera. The adapter works great.

A must have if your moving from canon to Sony and have canon EF lens

This product works well to adapt lenses from canon but is not as smooth because they aren't native to sony.

This adapter is great if you have many Canon glass and don't want to spend on Sony lens yet. The only downside is that the photos are on the softer side. I would prefer the kit lens before getting this or getting the cheaper Sony 50mm 1.8 for $200

I am using this mainly for manual lenses and it work great.

Works perfectly and I haven’t had any issues with it!

Good lens for my camera. Got this at great deal price

My brother loves it, it goes great with his Canon Camera.

Long story short is that my Canon 70D fell in the lake filming. I saw this adapter fit my Sony so I bought it. Quality is fantastic which should be expected. Fits Sony A6000 Here’s the issue...... THIS ADAPTER DOES NOT WORK WITH THE EF-S LENSES only THE EF (One of the main reasons I bought this) They will have to be modified. The autofocus doesn’t work. I haven’t updated it so I’m hoping that’s why.