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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Attaching The Grip
1. Ensure that the power is
turned off on the camera
and that the power switch
is set to OFF on the battery
grip.
2. Open the camera
battery chamber cover
and remove the camera
battery.
3. Remove the protective cap
from the battery grip.
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4. Connect the BG-S1 grip to
the camera, while aligning
the grip’s mounting screw
with the camera’s tripod
socket. Make sure to
leave the camera battery
chamber cover open, so it
will slide into the BG-S1’s
camera battery chamber
cover slot.
5. Rotate the attachment
wheel in the direction
shown by the arrow until it
is firmly tightened.
When removing the grip, turn
the camera power off, remove
batteries, and replace protective
contact cap.
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OVERVIEW INTRODUCTION
ASSEMBLY

Inserting Batteries
1. Ensure that the power is
turned off on the camera
and the grip.
2. Rotate the dial on the
battery chamber door to
OPEN position, and the
door will open up.
3. Slide the blue latch in the
direction of the arrow to
release the battery tray.
Remove battery tray from
the battery chamber.
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4. Insert up to two Sony
NP-FM500H batteries by
placing them into either
slot in the battery tray,
while ensuring the correct
orientation as shown on
the tray.
5. Slide the battery tray into
the battery chamber until
it locks into place. Close
the battery chamber door
and lock it by rotating the
dial to CLOSE position.
6. Rotate the grip power
to ON and then turn
on the camera’s power.
Check the battery level
in the control panel or
viewfinder.
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OVERVIEW INTRODUCTION
ASSEMBLY

Specifications
Power Source One or two Sony NP-FM500H rechargeable batteries
Operating Temperature 32 – 104 °F (0 – 40 °C)
Dimensions Approximately 5.6 × 5 × 3.5 (142.2 × 127 × 89)
Weight Approximately 9.4 oz (266 g) (excluding battery tray and batteries)
* Approximate measurements.
Specifications and design are subject to change without notice.
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