Ewinter said:
sdsr said:
charlymann said:
I have talked to several people who have the A7rii in England and it still seems that even with the Metabones IV that Canon glass in many circumstances will be slow to find focus. I also have heard about a lot of jello-judder problems when panning in 4K video. I would love the camera if these problems could be solved - though I would also prefer it shoot faster than 5fps.
And presumably (?) there will still be plenty of Canon EF lenses that won't AF at all; for them, speed improvements are irrelevant (you still get EXIF information and in-camera aperture control with such lenses, though).
I couldn't get the 50 1.4 or the 1.8 ii to lock at all in af. They were fast but just wouldn't lock; they hunt forever.
I haven't tried the stm though - I'm very interested to see if that works because I can't afford the 55 zeiss and don't have a small 50
You've probably noticed that the list of lenses Metabones claims will have AF via their adapters is rather short:
http://www.metabones.com/products/details/MB-EF-E-BT4
Neither of your Canon 50mm lenses is on the list. It seems odd to me that the 100mm macro is on it, but not the 100mm L macro. In my experience, the Mk III adapter on a7r/a7s/a6000 provides AF for more lenses than they listed for that adapter (typically, newer lenses; it works fine on my 10-18mm EF-S, so maybe it will work with the new 50mm STM too), but it certainly doesn't for my 50mm 1.4 or 100mm L. You presumably won't find it helpful that it does provide AF for the 50mm L; Steve Huff reports that it's faster and more accurate on the a7rII than it is on Canon bodies (I use the old, less expensive, MF-only FD 50mm L, so for me it's a non-issue). Their list is based on testing on pre-a7rII bodies, of course, but it doesn't seem likely that it would be any different with the a7rII. I hope I'm wrong!