Sigma MC-11 Mount Converter - Sigma Canon EF Fit Lenses to Sony E Mount Cameras

The price is on par with other adaptors... it's still very expensive for what it is... It's some plastic and bits of electronics.But boy does it perform well for me.I have a Sony a6400 and a Sigma 18-35mm f/1.8 Art lens (Canon mount).It does the bridge perfectly. All (as far as I can tell) Sony native features work with the Sigma lens! Eye AF, Focus Peaking. It's really great. It's not very fast with the 18-35 but enough for my needs.I also use it with a Canon 50mm f/1.8 STM and it works great for stills. It does Eye AF/Face tracking which is my main concern. It doesn't do AF in video however.Overall very happy because I have a perfect platform for my Sigma 18-35 f/1.8 Art lens.

Best adapter out there. Works brilliantly with both Canon and Canon mount sigma lenses. Continuous focus and eye af works brilliantly. Not quite native performance, but still excellent.

It works and delivers.It is not fast as a native lens, but it is expected.I am using this adapter on Sony A7RII with various lens and always single shot, AF-S with small central point focusSo far:Canon EF 16-35 F4 L IS - works good. low light - difficult focus. For some reason the IBIS in A7RII needs to be set manual in order to work...Canon EF 24-70 F/2.8 L II - works fast. reliable. Low light expect some slow focusing sometimesCanon EF-70-200 F/4 L IS - works. Not very good focus and hunting around the long end of the lens (135++) Low light - not reliable muchSigma 35mm ART - works as expected - hunts focus sometimes in low light.So in conclusion - it is not th ebest solution, but for this money it deliver and you can use your canon lens with SONY A series.

excellent product does exactly what it says it does, you will have to be aware that this will only work with certain Sigma lenses. build quality is top class. I bought it so that I could use it on my canon mount 150-600mm lens and it works wonderfully, all the Sony A7R ii feature work as with native lenses.

Just Buy It ! You Wont Be Dissapointed.I have a Sony A6000 (as well as my Sony A7Rii) and after 2 years of trying to find a decent zoom lens for my A6000 - I tried all the Sony versions, which were poor quality and over-priced, however, this little device has finally ended my quest!I am using this with the Sigma 17-70mm (which equates to 25.5-105mm - a brilliant every-day zoom range) which now gives me a relatively fast zoom - F2.8-4. and the optical quality is better than the Sony Zooms - very sharp and virtually no chromatic aberrations or vignetting - and it cost just £319 brand new with 3 year UK warranty - simply amazing!However, it's not perfect. Things to be aware of:- It's nicely compact but quite heavy- The auto-focus is not as fast as native Sony lenses - but fast enough for kids and pets etc.- You will need to persevere to get the auto-focus working properly i.e. test out the different settings. It took me a couple of hours, but now it's great.- Auto-focus is not silent, so you might hear it in videos - not ideal.- It works even better on my A7Rii but I need a much higher quality lens for this little beast

Great adaptor, does its job just great. But some of the lens don't work as fast on the Sony camera, as they were in the Canon, like my Sigma 24-105 f/4. But others like the 16-35 f/4 as fast and as sharp as canon

I bought this to use my Canon L lenses with my Sony A7s2If manual focus is you're thing, then this adapter works fine, allows you to change aperture and IS works too !However, none of my lenses would autofocus, they were just hunting consistently.I used this with:24-105 f/4 IS L16-35 f/4 IS L400 f/5.6 L85 f/1.8 USM50 f/1.8 STMAutofocus was poor on all of the above, however simply mounting did work fine.

I'm using this to adapt my Canon L lenses to my Sony A7iii and it works incredibly well. I've used this setup at 4 weddings so far and the hit rate of in focus shot is through the roof. Don't be put off by people on the internet telling you that adapted glass is a bad idea. Personally I have found it to work perfectly, even with continuous eye-AF. The only downside is the lack of weather sealing.