Vello BG-N11 User Manual page 7

4.
To prevent loss, place the
camera contact cover in
the contact cover holder
on the BG-N11.
5.
Connect the BG-N11
grip to the camera
while aligning the grip's
mounting screw with the
camera's tripod socket.
Removing battery from camera
before mounting grip is not
required.
7
6.
Rotate the attachment
wheel in the direction
shown by the LOCK arrow
until it is firmly tightened.