Is anyone using a Lumix GH4 & Metabones T Speed Booster XL 0.64x Adapter for Canon full frame lens

How good is the auto-focus? I am thinking of getting a GH5 for video and want to use my Canon lenses. How good are the stills taken from the 4K video capture. The GH5 at least on paper sounds really nice but I want to be able to use my Canon glass and still have auto-focus when needed.

Hey,

In general, I'm not a Panasonic-user, but had the opportunity to try the gh5 with the metabones speed booster and a canon EF 70-200L is USM yesterday.

The autofocus was almost the same as on a canon body. Maybe a split of a second slower, but very fast and always dead on.

It is absolutely usable, if you do not give to much attention to speed, I think there is no difference between using it on a canon body or the gh5.

Hope I could help you a little bit.
Greetings from Germany.