Power Sony’s A7S MK 1+2 from an external power source for extended run-times with the LR-16 dummy cable. This allows the use of more powerful V-Lok batteries VL-70 or if you wish to keep weight to a minimum our BPU range of batteries BP-60U can also be used.
This dummy battery is designed to work primarily with the majority of Sony Cameras, If you wish to power a monitor please refer to LR-16Z
No further regulation is required as the LR-16 is regulated to the correct voltage the A7S requires.