![background image](http://html1.mh-extra.com/html/vello/bg-s3/bg-s3_user-manual_3976453002.webp)
Introduction
The Vello BG-S3 accepts two Sony NP-FW50
rechargeable batteries to effectively double the runtime
of your Sony Alpha A7II, A7R II, and A7S II mirrorless
cameras, making it easier to shoot for longer durations
without replacing your camera’s batteries.
The BG-S3 attaches securely to your camera’s 1/4
"-20
tripod socket, and the nonslip rubber on the grip offers
enhanced handling when shooting in vertical position.
Alternate shutter-release, AF/MF/AEL, and three custom
buttons, plus front and rear command dials, make it
comfortable to shoot in portrait orientation, so you won’t
have to twist your arm to get the right shot.
Please read through this entire manual before
using the BG-S3 battery grip.
2