Vello BG-S1 User manual

BAT TERY GRIP
Designed for the Sony
SLT-A77,A77 II, and A99 II Cameras
USER’S MANUAL
BG-S1

Introduction
Thank you for choosing Vello and congratulations on
your new BG-S1battery grip purchase. Enjoy the many
benefits that a battery grip offers, such as extended
shooting time and more control and comfort when
shooting in a vertical (portrait) orientation.
The Vello BG-S1is compatible with the Sony Alpha
SLT-A77, A77 II, and A99 II DSLR cameras. The BG-S1
accepts two Sony NP-FM500H rechargeable batteries.
The BG-S1is equipped with an alternate shutter-
release button, AF start button, smart teleconverter/
focus magnifier, Fn/image rotation, AEL/slow sync/image
index, AF/MF/enlarge, and exposure compensation
buttons, a Multi selector, and a main dial for shooting in
a vertical position.
Please read through this entire manual before using
the BG-S1 battery grip.
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Precautions
1. The BG-S1should only be used with compatible
devices specified in this manual.
2. Only use with batteries and battery holders
recommended in this manual.
3. Cover the power terminals with the contact
cap when the BG-S1is not in use. This prevents
electrical shorts caused by metal objects touching
the power terminals.
4. When the battery holder is removed from the
grip, remove the batteries or place the holder in
a container to prevent electrical shorts caused by
contact with other metal objects.
5. If you notice smoke, an unusual smell or noise from
the battery pack, discontinue use immediately.
Remove the batteries and take the device to a Vello
authorized reseller.
6. Turn the grip power off when not shooting
vertically.
7. The battery level may not display properly if
batteries are inserted before mounting the grip.
8. Remove batteries from the grip when not in use.
9. Do not attempt to disassemble.
10. Avoid water or extreme humidity and keep in a
dry and cool place.
11. Keep out of reach of children.
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OVERVIEW INTRODUCTION
ASSEMBLY

Overview
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1Electrical Contacts
Communicates with the camera
electronics.
2
Mounting Screw
Aligns with the camera’s tripod socket.
3Guide Pin
Helps align the camera to the grip.
4Battery Chamber Door Dial
Locks and unlocks the battery
compartment door.
5Battery Tray Compartment
Houses the battery tray.
6Smart Teleconverter / Focus
Magnifier Button*
7Fn / Image Rotation Button*
8Multi Selector*
9
AEL / Slow Sync / Image Index
Button*
10
Rear Control Dial
11 Exposure Compensation Button*
12 Grip Power ON / OFF
13
AF / MF / Enlarge Button*
14
Camera Battery Chamber Cover
Slot
15
Attachment Wheel
Secures the grip to the camera.
16 Contact Cap
Protects grip contacts. Keep covered
when the grip is not in use.
17 Hand Strap Mount
18 Tripod Socket
19 Main Dial*
20 Shutter-Release Button*
21 Battery Tray Release
22 Battery Tray
Holds up to two Sony NP-FM500H
batteries.
* Performs the same function as on the
camera.
OVERVIEW INTRODUCTION
ASSEMBLY
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