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BATTERY GRIP
Designed for the Sony Alpha
SLT-A77 Camera
BG-S1
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Introduction
Thank you for choosing Vello and congratulations on
your new BG-S1 battery grip purchase. Enjoy the many
benefits that a battery grip offer s, such as ex tended
shooting time and more control and comfor t when
shooting in a vertical (por trait) or ientation.
The Vello BG-S1 is compatible with the Sony Alpha
SLT-A77 DSLR came ra. The BG -S1 accept s two Sony
NP-FM500H rechargeable batteries. The BG-S1 is
equipped wi th an alter nate shut ter-release button,
AF star t but ton, smar t teleconverter/focus magnif ier,
Fn/image rotation, AEL/slow sync/image index, AF/
MF/enlarge, and exposur e compensation bu ttons, a
Multi selector, and a main dial for shooting in a ver tic al
position.
Please read through this entire manual before using
the BG-S1 battery grip.
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Precautions
1. The BG-S
1
should only be used with compatible
devices specified in this manual.
2. Only use with batteries and batte ry holders
recommended in this manual.
3. Cover the power terminals wi th the contact
cap when the BG-S1 is not in use. This prevents
electrical shorts caused by metal objects touching
the power ter minals.
4. When the battery holder is removed from the
grip, remove the batteries or place the holder in
a container to preve nt electr ical shor ts caused by
contact wi th other met al object s.
5. If you notice smoke , an unusual smell or noise from
the battery pack, discontinue use immediately.
Remove the bat ter ies 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 inser ted before mounting the grip.
8. Remove bat ter ies 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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OVERVI EW INTRODUCTI ON
ASSEMBLY
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Overview
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1
Electrical Contacts
Communicates with the camera
electronics.
2
Mounting Screw
Aligns with the camera’s tripod
socket.
3
Guide Pin
Helps align the camera to the grip.
4
Battery Chamber Door Dial
Locks and unlocks the batter y
compartment door.
5
Battery Tray Compartment
Houses the battery tray.
6
Smart Teleconverter / Focus
Magnifi er Button*
7
Fn / Image Rotation Button*
8
Multi 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
Secur es the grip to the camera.
16
Contact Cap
Protects grip contacts. Keep covered
when the grip is not in use.
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Hand Strap Mount
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Tripod Socket
19
Main Dial*
20
Shutter-Release Button*
21
Battery Tray Release
22
Battery Tray
Holds up to two Sony NP- FM50 0H
batteries.
* Performs the same function as on the
camera.
OVERVI EW INTRODUCTI ON
ASSEMBLY
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Attaching The Grip
1. Ensur e that t he power is
turned off on the camer a
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. Connec t 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 direc tion
shown by the ar row until
it is firmly tightened.
When removing the gr ip,
turn the camera power off,
remove batteries, and replace
protective contact cap.
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OVERVI EW INTRODUCTI ON
ASSEMBLY
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Inserting Batteries
1. Ensur e that t he power is
turned off on the camer a
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 cha mber.
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4. Insert up to two Sony
NP-FM500H bat ter ies by
placing them into either
slot in the bat ter y tray,
while ensur ing the corr ect
orientation as shown on
the tray.
5. Slide the battery tray into
the battery cha mber until
it locks into place. Close
the battery cha mber door
and lock it by rotating the
dial to CLOSE position.
6. Rotate the grip power
to ON and then turn
on the camer a’s power.
Check t he bat ter y level
in the control panel or
viewfi nder.
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OVERVI EW INTRODUCTI ON
ASSEMBLY
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Specifications
Power Source One or t wo Sony N P-FM500 H rechargeable batt eries
Operating Temperature 32 – 104 °F (0 – 4 0 °C)
Dimensions Appr oxima tely 5.6 x 5 x 3. 5 (142.2 x 127 x 89
Weig ht Appr oxima tely 9.4 oz (26 6 g) (exclu ding batte ry tray and batterie s)
* Approximate m easur ement s.
Specifi catio ns and design ar e subje ct to ch ange wi thou t notic e.
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Warranty
Vello provides a limited warranty that this product is free from defects in materials and workmanship to the
original purchaser under normal use for a period of one (1) year from the original purchase date or thirty (30)
days after replacement whichever occurs later. Our responsibility with respect to this limited warranty shall
be limited solely to repair or replacement, at its option, of any product which fails during normal consumer
use. To obtain warranty coverage during the Warranty Period, contact your place of purchase (“Seller”) to
obtain a return merchandise authorization (“RMA”) number, and return to Seller the defective product along
with proof of purchase and the RMA number. This warranty does not extend to damage or failure which
results from misuse, neglect, accident, alteration, abuse, improper installation or maintenance. EXCEPT AS
PROVIDED HEREIN, VELLO MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WAR-
RANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you with specifi c legal rights, and you may
also have additional rights which vary from state to state.
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© Copyright 2012 Gradus Group
All other trademarks are the property of their respective ownerswww.vellogear.com
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