GH4 Metabones EF Smart Adapter & SpeedBooster support AF

Bern Caughey

Bern Caughey

Veteran
"New in Speed Booster ULTRA for Canon EF Mount to Micro Four Thirds is autofocus on Panasonic camera bodies, subject to certain limitations (see specifications for details). We are pleased to report that Panasonic Micro Four Thirds camera bodies are capable of autofocusing accurately even if the maximum aperture of the Speed Booster and the lens combined is in the sub-f/1.0 range. Although our first and foremost priority is accuracy, we are able to make great strides in autofocus speed as well, which is significantly faster than a DSLR Four Thirds lens on a Panasonic Micro Four Thirds camera (with adapter), or our E-mount offerings on Sony cameras prior to Alpha 7R II. For existing Metabones patrons with any previously released Canon EF to Micro Four Thirds mount Speed Boosters and Smart Adapters, a firmware update (Windows/Mac) to add autofocus is available for download on Metabones' web site."

http://www.metabones.com/article/of/Speed_Booster_ULTRA_0.71x
 
"...significantly faster than a DSLR Four Thirds lens on a Panasonic Micro Four Thirds camera (with adapter)".

I still have Olympus' 14-35mm f/2 & a Panasonic/Leica 14-50mm f/2.8-3.5, both of which are 4/3 lenses & require a m4/3 adapter. They focus relatively slowly, & often inaccurately, on the previous GH bodies, so the bar is not set too high.

Good to see Metabones updating their existing adapers.
 
Awesome. Although those years of not being able to adapt electronics has gotten me addicted to old lenses now.
 
I went with the Ultra Nikon mount. I'm sure it's an extra bonus for EF users, but i don't see the point of autofocus for video.
 
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