Canon EF Lens to Sony E Mount T Smart Adapter (Mark V)

Metabones is known for their design and this adapter doesn’t disappoint. I’m converting from the MBPCC6K to a Sony A7Siii as my primary camera and this was important to avoid repurchasing a pile of cine lenses (which of course are manual focus). I’m happy as can be on that front.Smooth autofocus is a major advantage of the Sony camera and having that option is a major reason for my switch. Sadly, the adapter hampers this functionality in a big way on my Canon AF lenses. So, if you’re relying on the A7Siii’s AF capabilities, best to pick up some solid F mount lenses instead.

While this adapter allows me to use my Canon lenses on my A7III, I always end up feeling like I overpaid for it. I'm currently using it with my Canon 35mm f/1.4L II and 85mm f/1.4L in green mode. Green mode feels pretty good, doesn't feel native but auto focus works pretty well. I also tried advanced mode but it feels terrible and takes for ever to focus in continuous mode. I do like that I can upgrade the firmware though and the IS switch. I think it would be perfect if it cost $100 less. Eye autofocus kind of works but it doesn't feel completely "right". The build quality feels great.

I have been using the Sigma Mc-11 for a long time and learned to live with its limitations. For reference I use a Sony a7riii and a a6600. Two lenses that were really struggling with the sigma are my Canon 85mm f1.2 I and my Canon 200mm f1.8. I did not have too much expectations with this product but wanted to give it a shot mainly for the 200mm. Well it is good. It works really well with both lenses and worth the money because of the outcome. It even worked well combining the 200 with a 1.4 extender. Mission accomplished.

Note: Previously I wrote this response to someone else’s review about MB V freezing their Sony. I will quote my previous response & add an update below.“ We have the Sony A7ii & a7iii. We also have Metabones IV & Metabones V. Also have Canon 70-200 2.8 L is ii, & other Canon (and Tamron & Sigma) lenses. Our MB V EF-E T freezes both Sony cameras randomly. Our MB IV does not freeze our Sony cameras, (though it often hunts). I took lenses, adapters, & cameras to local Shutterbug shop. The technician experienced the same thing. But freezing never happens with the Sigma art lens that we own & the Sony 70-300 G lens that we rented. The obvious comment is to “use native glass”. Yes, sure, but I love my Tamron 150-600 G2 for birds in Flight. It works on my Canon lenses and with my husband’s A7ii & MB IV. Put in on my Sony A7iii with MB V, I get random freezes and focus problems. All firmware updated. “UPDATE: Since I wrote above, we have put the MB V into Advanced mode permanently. We have not experienced any freezing in Advanced mode. We discovered that Advanced allowed us to use DMF focus mode at High+ drive speed & we could Autofocus (!) with focus peaking (!) on our Sony A7iii fast enough to take multiple sharp hummingbird photos with Tamron 150-600 G2 or Sony 70-200 2.8 L IS II. (Admittedly the hummers are not moving at their top speed, since they are moving slower as they get close to their feeders.) So far so good. Will post some photos later. Advanced mode is not perfect, but it seems more reliable than Green mode for capturing wildlife. Deer, wild turkeys, quail, etc. Now my husband is experimenting with Advanced using his MB IV and Sony A7ii. I would advise everyone to read the user support pages on Metabones.com (Yes, they are horribly confusing, but persevere. If you are having freezing problems, try switching from the default Green mode to Advanced. And try DMF autofus mode.)

I got this to use with a Sony a7r iii to a Canon 24-105 f4 and it works pretty good. Make sure you have the correct firmware installed which you can get from the Meta Bones website and also the camera you are using any of these adapters with if you want to AF to work the best. A little troubleshooting may be required, but it is worth it. Some lenses I use with this I have to switch the a7R iii to APS-C mode and it works fine, specifically a Tamron 17-50 but it is a APS-C lens. Because of the increased distance from the camera body to the lens you'll get a little more vignetting when zoomed all the way in but it isn't anything that cannot in post.

Be prepared to use manual focus only because even with the updated firmware, the autofocus just does not work at all. It will sit there and just keep searching and searching. Thankfully, I just purchased my first Sony lens, but now I'm out $400. Would not recommend this adapter unless you just have absolutely no other option.

Interfaces securely and reasonably well with my favorite Canon lenses for use on my Sony a7iii. AF is pretty good and fast enough for most applications. The only limitation is not having access to all AF features available on a Sony alpha body (automatic AF mode, precision zones off-center, to think of a few). With this I can make my expensive glass last much longer while I transition into the E-mount system.

I'm a professional photographer in the process of making the switch from Canon to Sony. I tried a couple of different ways to strap my existing Canon lenses onto an A7III, but returned everything else and eventually went with this. Metabones is the only one I found that's reliable enough to do regular work with. Auto focus may still search more often than you're used to with some lenses. My 70-200mm and my 100mm macro both struggle more than they do when used on a Canon body, but neither is so bad that it's unusable. Changing up stabilizer settings so they're not competing (either the IBIS switch on the Metabones MKV or turning stabilizer off on the lens itself) seemed to remedy the problem most times for me. Overall, this is as good as it gets if you want to mix Canon glass with a Sony body. Not 100% flawless, but pretty darned good.