POCKET WIZARD PLUS II
Seb says… There are lots of options for triggering your flashguns remotely, but for shooting on location in any light you need a radio trigger. These Pocket Wizards were the first systems on the market to win over pros like me, and I still use mine today. Each unit is a receiver and transmitter, so I have one for my D3, and another two for my SB-800 strobes. The modern equivalent is the Pocket Wizard Plus III, costing £220/$300 a pair.