While I’ve found Nikon’s wireless TTL system to be a great asset, I also understand that it has inherent weaknesses when used around obstacles that block the signal, as well as outdoors beyond a few feet or under sunlight. Enter PocketWizard’s ControlTL (Control The Light) TTL-auto radios for Nikon (originally introduced for Canon). These radios are designed to respond in every respect as a dedicated extension of the Nikon CLS/i-TTL system. And they have the potential to do that, provided you keep on top of firmware updates (www.pocketwizard.com/support). I conducted my tests using my Nikon D300 together with the Nikon SB-900 speedlight (verified by PocketWizard as compatible) and briefly an SB-700 (not confirmed at time of testing).
CLICK ON THIS LINK TO READ THE COMPLETE PUBLISHED REVIEW ONLINE: POCKETWIZARD CONTROLTL