Synchro-sunlight or exposure compensation possible with SB-104 / SB-105 for creating original exposures
Complete underwater system includes Nikon SB-104 / SB-105 TTL Speedlight, in addition to optical underwater viewfinders, underwater frame finders, close-up outfits and Nikkor underwater/land-use lenses; these Speedlights also enable TTL multi-flash capability with other Speedlights via Double Flash Bracket and Double Sync Cord