Metabones introduces Speed Booster XL 0.64x for Panasonic GH4: Digital Photography Review
Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews
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Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews
Kipon adapter to allow AF with Canon lenses on Micro Four Thirds bodies: Digital Photography Review
Panasonic Lumix DMC-GH4 Gear Review - Filmmakers Academy
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How to use Canon EF lenses on the Panasonic GH4
Metabones Releases New Lens Adapter for Panasonic GH4, Adds Autofocus via Firmware Update for Existing Models | Fstoppers
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