Techart EF to E Mount Adapter?

Hello,

So long story short, I finally decided to upgrade from my old and trusty a7 to the new a7C, and in the process, I also sold off some of my Minolta glass and got some used Canon EF glass (the modern Sony G lenses are still out of my reach). I currently have the Sigma MC-11, but since it is designed really for Sigma glass, the functionality of Canon glass on it is somewhat limited (i.e. no DMF).

The Metabones adapter is cool, but it's priced way too high, and I've heard that their flange is much shorter than the actual EF mount or the MC-11, so lenses with floating elements would take a severe image quality hit, and that's why I would try to not consider it.

I will be receiving a shipment of stuff from China recently, so I was also considering getting a good Chinese adapter. I wonder if anyone has used the Techart TCS-04 EF to E mount adapter? I know that they built an autofocus Contax G to E adapter that seems to be pretty good. I will need a reasonably good AF-C performance, but values supporting all the functionality over the fastest AF (and that's why I do not like the MC-11 that much, after having played around a bit with it). I am also open to suggestion about other adapter options.

Sincerely

QuietOC wrote: I am not sure what you mean by no DMF with the MC-11. Full-time Manual Focus works MC-11.

When I connected my EF 40 2.8 STM onto the MC-11. and go into the menu to select focus mode, I can only select AF-S or AF-C. AF-A and DMF are grayed out.

Also I prefer native emulation over EA3 emulation whenever possible.