Promaster 6835 Dovetail Phone Clamp Flashes UHD 4K recording uses a

UHD 4K recording uses a 1

which hold 200lbs (90kg) each

thanks to high-speed shooting

Energy/capacity43

Media/Memory Card Slot : Dual Slot: CFexpress Type A / SD (UHS-II)

Promaster 6835 Dovetail Phone Clamp Flashes UHD 4K recording uses aThe ProMaster Phone Clamp is a great way to mount your smartphone to a tripod, flex arm, studio clamp, and more, using one of its two 20 threaded ports. Or, connect it to a tripod using the integrated dovetail (arca type) foot. Its constructed of high quality aluminum and is compact and lightweight. The jaws open to a maximum size of 3 1 2" to accommodate the largest smartphones; even when a protective case is installed.