Canon and Sony with Sigma EF lenses?

I've been a Canon shooter for about 8 years. I have a lot of L glass and a 5D4. There is just something about the A7R ii that I can't resist, so I bought it (again) last week. I bought it with the 50 f/1.8 and sold my 35L since I now have the 35 f/2 IS. Now I'm debating returning the 50 1.8 and getting the Sigma 35 Art with the MC-11 adapter. This got me thinking about swapping all my Canon L primes for Sigma Arts (over time) Is there anyone else running with such a setup? Looking for thoughts/advice.

Not yet, but I have similar thoughts. I have my Canon kit and an A7RII with a few Sony lenses. I have the Sigma MC11 adapter, and have been toying with changing out my Canon EF glass to Sigma glass. It's a tough call. My 135L works just great on the Sony with the adapter, and images are great. So do I need the Sigma 135 Art? Probably not. I've found all my glass works just fine with the adapter. My decision is more around filling in holes in focal lengths, not completely swapping glass.

Do you feel that your current L glass doesn't give you what the Sigma's will? Just wondering why you'd swap out. For example, to me, the 135L -> 135Art is a minor upgrade, very negligible difference in IQ (at least in final post-processed raws; back of camera jpgs show a major improvement).

What I find with adapted L glass on the Sony is the center point is the only one that works acceptably. The images are fine, and if you manual focus it's fine (and you get peaking which is nice).

So its like shooting with a canon 6d but with focus peaking.

Did not know 6d has focus peaking. What I like about Sony is that it puts that square on any part of the frame automatically. I don't chimp with my sony. Now going back to lense question. I got rid of 2 of my L and swapped out for art. Why? Canons were soft, the sigmas are way sharp. No need to sharpen on ps! Still own 3 L lenses. Debating to sell 2 more and get 2 more sigmas arts.

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elitejp wrote in post #18375100
So its like shooting with a canon 6d but with focus peaking.

jay25 wrote in post #18376133
Did not know 6d has focus peaking.

It doesn't. Elite J.P. said that it is like shooting with the 6D, except that it has focus peaking.

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Why sell your L lenses? I use my L glass with a Metabones or Sigma MC11, Depending on the lens, autofocus performance is sometimes amazing (70-200 f2.8).. to gets the job done, to don't waste your time trying to autofocus. But as mentioned, with focus peaking, I am good to go with even manual focus. I have a 7 inch HD monitor hooked up to my camera and it works perfect. I wouldn't go back to traditional SLRs if you paid me. And the additional dynamic range is to drool over. I am keeping my L stuff in hopes Canon gets their acts together on the sensors - but Canon menus and feel is way better. I am hoping the new 6D will be mirrorless as the rumors have it.

I'm a Canon shooter but I've been using the Sigma 35 f.14 and 135mm f1.8 and I'm seriously looking at getting the 20mm and 50mm. Sharp, good build quality and you cannot beat the warranty (7 years here in Canada).

I have been a Canon shooter for more years than I want to count. I was relatively happy until I put the Sigma 85mm art on my 5D Mk III. The
sharpness of that piece of glass ruined me. I now have 35/85/135 mm art lenses. I have been contemplating Sony A7r ii with an adapter. (MC-11 or Metabones)
For the moment I am going to hold off on adding a Sony body. I am hoping the next generation of the A7r ii arrives with some upgrades to make it more
attractive. Current battery life is a downer, so I am staying put for the moment. The auto focus of the Sony A7r ii is tempting, but with
adapted lenses it makes me pause. To many L's to start from scratch.