POWER SOURCES
Nikon External Power Regulator MB-22
The MB-22 consists of the grip portion MB-21G, in common with the MB-21, and the bottom portion MB-22B. The terminal enables connection with Nikon AC/OC Converter MA-4 via Nikon External Power Cord MC-11 . A regulator, which converts the 15V current of the MA-4 to 8.2'1,and a remote terminal are provided.
Nikon Multi-Power High-Speed Battery Pack MB-23
The complete system consists of unitized battery pack/hand grip assembly and one-piece battery tray MS-23 for AA alkaline- manganese batteries or optional NiCd Battery Unit MN-20. A remote terminal and the terminal for MF-24 back are provided for the MB-23 as well as battery checker LEOs. Optional Quick Charger MH-20 can charge up to two MN-20 units sequentially, operate automatically with voltage from 100V to 240V.
Nikon AC/OC Converter MA-4 and External Power cord MC-11
Especially recommended when using the F4 for extended studio use. Supplies constant 15V OC current to MB-22. The MC-11 Cord plugs into the external power terminal of the Nikon External Power Regulator MB-22.