Usable cameras: Canon EOS, Nikon iTTL, Sony ADI/P-TTL
Guide No.: 44/145 at 105mm focal length (ISO 100 m/ft)
Illumination: 24-105mm (16mm with diffuse panel)
Coverage: (Automatically set for the lens focal length)
Power source: 4 x size AA alkaline batteries (Size AA Ni-MH or lithium batteries usable)
Battery life: 200-1500 flashes according to the mode (with alkaline batteries)
Energy saving: Switch to Stand-by mode in 2 minutes., and power off in 60 minutes. After the power on or the last use of flash unit.
Recycle time: 5 seconds with fresh alkaline batteries
Flash exposure: Automatic exposure: E-TTL / E-TTL II. ITTL. ADI/P-TTL.
Flash: FE lock. Fv lock
Power lock: With [FEL] or [ ], With (AE-L) or AF-L, N/A button on EOS cameras button on cameras
AF assist light: Effective range of approx. 0.7 to 6m / 2.3 to 20 ft.
Color temperature: 5600 K
Flash duration: 1/800 (full power flash) sec., 1/800 - 1/20,000 (controlled flash) sec.
Wireless flash: SD: Slave Digital / SF: Slave Film (Slave function with 6 power level) Wireless TTL Slave: for Canon/ Nikon Wireless TTL slave Channel 1 Group A for Sony Wireless TTL slave Channel 1 Remote (RMT) (Controlled by Master flash)
Dimensions: 77(W) x 130(H) x103(D) mm / 3.0(W) x 5.1(H) x 4.0(D) inches