Canon EF to MFT Metabones Speed Booster Review - What is it & how does it work?

More info here: http://tomantosfilms.com/4634/ef-m43-speedbooster/

Metabones Canon EF Lens to Micro Four Thirds Speed Booster http://bhpho.to/1qO5Xx3

Metabones Nikon G & F Lens to Micro Four Thirds Mount Camera Speed Booster http://bhpho.to/1pUrAbb

Metabones Canon EF Lens to Sony E-Mount Camera Speed Booster ULTRA http://bhpho.to/1qO89EQ

Metabones Nikon F-Mount Lens to Sony E-Mount Speed Booster ULTRA http://bhpho.to/1lYQOKC

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If you own the Panasonic GH4 or any other micro four thirds camera then you have to get this lens adapter from Metabones.

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My name's Tom Antos and I make videos. I am a film director and cinematographer with over 12 years experience in VFX & animation. Jak sie masz?! I'm originally from Poland ;) Check out my channel here: http://www.youtube.com/user/polcan99