Vello BG-N4.2 User Manual page 6

1.
Ensure that the power is
turned off on the camera
and that the Control Lock
on the BG-N4.2 is in the L
position before attaching
the grip.
2.
Remove the contact cap
from the BG-N4.2 battery
grip. Replace the cap when
not in use to protect the
contacts.
6
3.
The contacts for the BG-
N4.2 are on the bottom
of the camera where they
are protected by a contact
cover. Remove the contact
cover before mounting the
grip.