![BMCC variant Speed Booster works on GH3 and GH4 to give 1.28x crop, near full frame - EOSHD.com - Filmmaking Gear and Camera Reviews BMCC variant Speed Booster works on GH3 and GH4 to give 1.28x crop, near full frame - EOSHD.com - Filmmaking Gear and Camera Reviews](https://www.eoshd.com/wp-content/uploads/2014/04/gh4-bmcc-speed-booster-660x371.jpg)
BMCC variant Speed Booster works on GH3 and GH4 to give 1.28x crop, near full frame - EOSHD.com - Filmmaking Gear and Camera Reviews
![Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews](https://www.eoshd.com/wp-content/uploads/2014/08/m43-sb-2-660x440.jpg)
Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews
![Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews](https://www.eoshd.com/wp-content/uploads/2014/08/m43-sb-1-660x440.jpg)
Officially announced - Metabones Canon EF Speed Booster for Micro Four Thirds and Panasonic GH4 - EOSHD.com - Filmmaking Gear and Camera Reviews
![Viltrox NF M43X Manual Focus 0.71x Reducer Speed Booster Lens Mount Adapter for Nikon G D Lens to M4/3 Camera GH5 GH4 GX85 E M10|speed booster|focal reducerring for nikon - AliExpress Viltrox NF M43X Manual Focus 0.71x Reducer Speed Booster Lens Mount Adapter for Nikon G D Lens to M4/3 Camera GH5 GH4 GX85 E M10|speed booster|focal reducerring for nikon - AliExpress](https://ae01.alicdn.com/kf/HTB1B3RlKRLoK1RjSZFuq6xn0XXaf/Viltrox-NF-M43X-Manual-Focus-0-71x-Reducer-Speed-Booster-Lens-Mount-Adapter-for-Nikon-G.jpg_q50.jpg)
Viltrox NF M43X Manual Focus 0.71x Reducer Speed Booster Lens Mount Adapter for Nikon G D Lens to M4/3 Camera GH5 GH4 GX85 E M10|speed booster|focal reducerring for nikon - AliExpress
![Panasonic's GH4 becomes a Super35 4K contender thanks to Metabones XL 0.64x Speedbooster - Newsshooter Panasonic's GH4 becomes a Super35 4K contender thanks to Metabones XL 0.64x Speedbooster - Newsshooter](https://www.newsshooter.com/wp-content/uploads/2015/06/FullSizeRender-3.jpg)
Panasonic's GH4 becomes a Super35 4K contender thanks to Metabones XL 0.64x Speedbooster - Newsshooter
![Hands on with the new Metabones Speed Booster Ultra - fast AF with Canon lenses on Micro Four Thirds - EOSHD.com - Filmmaking Gear and Camera Reviews Hands on with the new Metabones Speed Booster Ultra - fast AF with Canon lenses on Micro Four Thirds - EOSHD.com - Filmmaking Gear and Camera Reviews](https://www.eoshd.com/wp-content/uploads/2015/07/gh4-sb-ultra-1.png)