Designed for the Sony Alpha
A7II and A7R II Mirrorless Cameras
Introduction
The Vello BG -S3 accepts two Sony NP-FW50
rechargeable batteries to effectively double the runtime
of your Sony Alpha A7II and A7R 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 p ortrait orient ation, 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.
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Precautions
1.
The BG-S3 should be used only with the compatible
devices specified in this manual.
2.
When the battery tr ay is removed from the grip, remove
the bat teries or place the tray in a container to prevent
electrical shor ts caused by contac t with other metal
objects.
3. If you notice smoke, an unusual smell or noise from the
battery pack, discontinue use immediately. Remove
the bat teries and cont act the Vello Customer Service
Department.
4. Keep this product away from water and any flammable
gases or liquids.
5. Set the grip’s on/off switch to Off position to disable its
controls when not shooting vertically.
6.
The bat tery level may not display properly if batteries
are inser ted before mounting the grip.
7. Remove batteries from the grip when not in use.
8. Do not attempt to disassemble or repair this produc t.
9.
Install bat teries in the proper orienta tion. Installing
batteries in the reverse orientation can c ause them to
leak, overheat, or explode.
10. Avoid water or extreme humidit y and keep in a dry and
cool place.
11. Keep out of reach of children.
12 .
Make sure that this product is intact and that there are
no missing parts.
13.
To avoid damage to this product, be careful not to
overtighten or improperly thread any of the threaded
fittings.
14. All photos are for illustrative purposes only.
OVERVIEWINTRODUCTION
3
ASSEMBLY
Overview
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1
Electrical Contacts
Communicates with the camera
electronics.
2
Custom Button (C2)*
3
Custom Button (C1)*
4
Hand Strap Mount
5
Shutter-release Button*
6
Front Command Dial*
7
Tripod Socket
8
Battery Tray Compartment
Houses the bat tery tray.
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Battery Tray Latch
10
Battery Tray
Holds up to t wo Sony NP-FW50
batteries.
11
Attachment Wheel
Secures the grip to the camera.
12
Grip On/O Switch
Activ ates or disables the BG -S3’s
controls. Your camera will continue
to draw power from the BG-S3 when
the swi tch is in the Off position. The
on/off swi tch is not a power switch.
13
AF/MF/AEL Button*
14
Rear Command Dial*
15
Custom Button (C3)*
16
Camera Battery Chamber Cover
Compartment
17
Guide Pin
Helps align the ca mera to the grip.
18
Mounting Screw
Attaches the grip through the
camera’s tripod socket.
*Performs the same function as on the
camera.
OVERVIEWINTRODUCTION
5
ASSEMBLY
Attaching the Grip
1.
Ensure that the power is
turned off on the camera
and that the on/off switch
is set to Off on the battery
grip.
2.
Remove the battery from
your camera’s bat tery
chamber.
3.
Remove your camera’s
battery chamber door by
pulling the relea se latch on
the inside of the door as
indicated above.
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4.
To prevent loss, place the battery chamber door
into the BG-S3 battery door compartment.
Align the door with the BG-S3’s battery door
compar tment, and then insert the door. Press
the door’s release but ton to lock the door in
place.
5.
Swing the door shu t and slide the sw itch to the
LOCK position.
INTRODUCTION
OVERVIEW
7
ASSEMBLY
6.
Connec t the BG -S3 grip to
the camera, while aligning
the grip’s mounting screw
with the camera’s tripod
socket.
7.
Rotate the attachment
wheel in the direc tion
shown by the arrow until it
is firmly tightened.
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When removing the grip, turn the
camera power off and remove
the batteries.
Inserting Batteries
1.
Ensure that the power is
turned off on the camera
and that the grip’s on /off
switch is set to Off.
2.
Flip the batter y tray
latch so you can rotate it
counterclockwise and pull
the bat tery tray out of the
grip.
3.
In the bat ter y tray are
compartments for batteries
1 and 2. Align bat tery 1 as
indicated by the diagram,
noting the springs inside
the compartment. Insert
battery 1 spring-side fir st,
and push down so it snaps
into place.
INTRODUCTION
OVERVIEW
9
ASSEMBLY
4. Align battery 2 as indicated
by the diagram in the
compar tment, and slide it
in until it snaps into place.
5.
Make sure the bat tery
tray latch is rotated
counterclockwise and
slide the battery tr ay into
the grip. Rotate the latch
clockwise and reposition it
so it’s flush with the side of
the grip, then turn on the
camera and grip.
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To remove battery 1, pull the
battery toward the springs and
lift the battery up and out of the
compartment.
Specifications
Power SourceOne or tw o Sony NP- FW50 ba tteries
Voltage Output7.2 –8 .4 V
Amps Output<3 A
Operating Temperature32°F–104°F (0°C–40°C)
Dimen sions ( W × D × H)5.03˝ × 2.5˝ × 3.95˝ (12.8 × 6.4 × 10 cm)
Weight7.5 oz. (212.6 g) wit hout ba tteries
Battery Status
When two batteries are installed in the BG -S3, your c amera will automatically select the bat ter y with lower power
remaining. Both battery levels will appear on your camera’s LCD, with battery level percentage displayed for only the
battery in use. When that batter y is depleted, your camera will s witch to the other battery in the grip.
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INTRODUCTION
OVERVIEW
ASSEMBLY
ONE-YEAR LIMITED WARRANTY
This VELLO product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use
for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs later. The warranty provider’s
responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider’s discretion, of any product
that fails during normal use of this product in its intended manner and in its intended environment. Inoperability of the product or part(s) shall
be determined by the warranty provider. If the product has been discontinued, the warranty provider reserves the right to replace it with a
model of equivalent quality and function.
This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance.
EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED
WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. This warranty provides you with specific legal rights, and you may also have additional rights that vary from state to
state.
To obtain warranty coverage, contact the Vello Customer Service Department to obtain a return merchandise authorization (“RMA”) number,
and return the defective product to Vello along with the RMA number and proof of purchase. Shipment of the defective product is at the
purchaser’s own risk and expense.
For more information or to arrange service, visit www.vellogear.com or call Customer Service at 212-594-2353.