Mc-11 on A7... Help

The adapter works with both contrast and pdaf but pdaf is significantly faster. Saying this, I also have an mc-11 and it is relatively slow with my Canon 100-400, but also keep in mind this adapter is specifically designed for Sigma brand EF lenses, so it doesn't guarantee that Canon lenses will work

 

Or a new camera body?  

I agree with the other comments as I had a similar experience with the Techart/DEO TA-GA3 adapter for Contax G glass. I used it for a while with an A6000. It did kind of work, but was slow, glitchy and would occasionally cause the camera to freeze up. When I bought my A7ii, it was like night and day. It works almost as well as the Techart Pro, though much noisier.

 

I have the MC-11 but on the A7Rii body. Works well with Sigma Art lenses (Canon mount), and also the few Canon lenses that I've tried - Canon 70-200/2.8 non IS, Canon 50 STM and Canon 40 STM.

 

Also, if you don't mind manual focus and aperture rings, there are a lot of older lenses that work nicely with very cheap adapters, and are themselves very inexpensive. (Some old glass is quite expensive, though.) Opinions vary among those here as to which lenses are best bang-for-buck with acceptable IQ, as you might expect. And of course it depends on what you like and your subject matter.

Look through Adapted Lens Sample Image Showcase for sample pics.

 

My partner at work bought the MC11 for his A72, and uses it with his Canon glass. Some of the older glass has some issues, being slow to focus, but it works. No issues with his newer Canon glass, both L and STM.
Only the old Canon 85mm continues to plague him.
He like the L lenses, which the 85mm is.

 

I just bought one and installed latest firmware (you do NOT need the Sigma dock, which the instructions say, but only need to download an app SOP Sigma(?)). Anway, I have an A7iii, and it's magic. I was planning to sell my older lenses and "upgrade" to Sony, but my Sigma, Canon, and Tamron lenses seem to work great--perhaps better than on my Canon 5D4!!
This is the non-art Sigma 85 F1.4, wide open. Hit every time!! I am sooo happy.

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DSC00343.jpg by Al Walzem, on Flickr

 

This also Sig 85 at 1.4--but moving. Perfect focus on face. Remarkable....

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Elderly Cyclist Heads Home at Dusk.jpg by Al Walzem, on Flickr

 

This is good news. Just picked up an a7Rii and am planning to go with an MC-11 and a non-IS Canon 70-200 f/4 as a lower cost tele zoom option, and to share lenses with a friend who shoots Canon. I have an a6000 body as well, it’ll be interesting to see if it works on that...

 

I was able to have fairly decent capability with my A6500 + Canon EF 85mm f/1.8 lens and MC-11 adapter. However, the Sony 85mm f/1.8 lens blows the Canon out of the water. The IQ is comparable but, the easy of use of the Sony lens is far superior to using the Canon with the MC-11. I have Eye-AF with the Sony which can be initiated with the lens focus hold button which I reprogrammed for Eye-AF. The native Sony lens, since it doesn't need an adapter, is also lighter in weight than the Canon + MC-11. I bought the Sony lens, used from Adorama, for about $450...