Vello BG-S7 User Manual page 5

Electrical contacts
1
C2 custom button
2
C1 custom button
3
Hand strap mount
4
Control lock switch
5
Shutter release button
6
Front dial
7
Nonslip grip
8
Tripod socket
9
Battery compartment
10
Battery tray lock
11
Battery tray
12
Thumbwheel lock
13
Multi-selector
14
AF-ON / enlarge viewing
15
AEL button / preview zoom
16
5
Rear dial
17
Camera battery door holder
18
Mounting screw
19
Battery slot 1
20
Slot 1 contacts
21
Battery slot 2
22
Slot 2 contacts
23