If that image grabbed your attention than just the full video below. And knowing that it has been taken with two Panasonic GH4 cameras :)
via CutMedia.
—-
GH4 North American store links:
GH4 camera at Amazon, Adorama, BHphoto, Ritz Camera and Panasonic. Price: $1,698. In Canada at Vistek.
GH4 camera with interface unit at Adorama and BHphoto. Price: $3,298
Interface unit only at Amazon, Adorama, BHphoto and Panasonic. Price: $1,998
GH4 Europen store links:
Germany: Wexcameras, Marcotec-shop.de.
UK at Wexphotographic, CameraWorld, UKdigital, CVP, TipTop.
Holland at Fotohanskeuzekamp.
Belgium at Fotokonijnenberg.
Norway at Fotovideo.
Sweden at Cyberphoto, Skandinavianphoto.
Finland at Telefoto, Topshot, Verkkoauppa.
France at Photocineshop.
Spain: Fotoboom.
Asian store links:
Digitalrev and Digidirect Australia.
4K cards
Kingston 16-32-64 GB SDHC UHS-I Speed Class 3 at Amazon (Click here), Adorama (Click here) and BHphoto (Click here).
Sandisk 16-32-64 GB Extreme PRO SDXC UHS-II Memory Card at Amazon (Click here), Adorama (Click here) and BHphoto (Click here).
Transcend 64-128 GB High Speed 10 UHS-3 at Amazon (Click here) and BHphoto (Click here).
Panasonic 16-32-64 GB SDHC-UHS-I U3 Card (90MB/s) at Adorama (Click here) and BHphoto (Click here).