Review on SZRMCC Blackmagic Adapter NP F970 Battery by Jeremy Hong

Surprisingly well built! I've used it with my BMPCC 6K for a few runs and shootouts and it's held up well! The works are actually mounted on a cage on top of the camera. Depending on the size of your Sony battery, you can enjoy up to 1-3 hours more recording time than with a conventional battery. Also works as a backup battery for your normal camera! If you accidentally disconnect the cable, recording will continue if the camera has a battery.