Yongnuo YN568EX II Ttl Master Hss 1 8000S Flash Speedlite For Canon.

Yongnuo YN568EX II TTL Master HSS 1/8000s Flash Speedlite for Canon  
  Functions:

Master Mode
Support HSS, the High Speed Sync, up to 1/8000 second
Wireless TTL Slave for Canon and Nikon
Hot shoe TTL for Canon
Guide Number 58 (ISO 100, 105mm)
Flash Modes: ETTL / i-TTL, M, Multi Mode
Modeling Light
Auto and Manual Zooming Head 24 * 105mm
Auto Zoom for Sensor Size
2.5mm Sync Port

Features:

a), Supports High-Speed Sync Flash
With high-speed sync (FP flash), the YN568EX II can synchronize with all shutter speeds, the maximum
shutter sync up to 1/8000.

b), Master flash.
This YN-568EX II can be used as a Master flash to trigger YONGNUO flashes YN568EX II, YN568EX,
YN565EX, YN500EX, YN560EX, YN510EX, and Canon flashes 600EX-TR, 580EX II, 580EX, 430EX II.

c), Supports for Canon's and Nikon's System
It can work as a remote slave flash triggered by Canon 600EX-RT, 580EX II, Nikon SB-910, SB-900,
SB-800, SB-700, Canon 5DIII, 7D, 60D, 700D, 650D, 600D, Canon c-commander ST-E2, Nikon SU-800,
achieves wireless TTL and manual flashing.d), TTL Flash With Large Guide Number
GN58@ ISO100, 105mm; which reaches the level of the mainstream hot shoe flashes, supports HSS,
TTL/M/Multi mode.e), Multiple Trigger More Supported
The YN568EX II can be triggered by hot shoe, flash command slave mode,
optical S1 and S2 (pre-flash-canceled mode).f), Supports Auto/Manual Zooming
YN-568EX II covers focal length range of auto, and 24*105mm, supports full-frame/half-frame camera.g), Comprehensively Support TTL Functions
HSS, FEC, FEB, Rear-curtain sync, FE lock, Modeling Light, Canon camera menu accessibleh), 2.5mm PC Synchronous Interface
It makes things easier on lightening the flashlight synchronously by using PC synchronous line.i), Sound Prompting System
When the sound prompting system is enabled, the different sound ways will prompt the different
working conditions of the flashlight so as to make you focus on shooting only.j), Modeling Light Function
Press down the camera*s depth-of-fired preview button, the YN568EX II will send out continuous flash
lasting one second.k), Advanced Settings On Flash
This YN568EX II has advanced options setting function, where you can self-define the functions of the
flashlight on your own requirements.l), Automatic Setting Saving
This YN568EX II automatically save the operation currently used for your future use.m), LCD Panel User Interface With Super Gelivable Metal Hot-Shoe StandCircuit design: Insulated Gate Bipolar Transistor (IGBT)
Guide No.: 58 meters (ISO 100, 105mm)
Flash mode: HSS, TTL, M, MULTI, Sc, Sn, S1, S2
Wireless triggering distance: 20~25m indoor, 10~15m outdoor
Zoom range: 24,28,35,50,70,80,105mm
Vertical rotation angle: -7~90 degrees
Horizontal rotation angle: 0~270 degrees
Power supply: 4AAsize batteries (Alkaline or Ni-MH are usable)
Lighting times: 100~1500 times (AA alkaline cell used)
Recycle time: approx 3s (AA alkaline cell used)
Color temperature: 5600k
Flash time: 1/200s~1/20000s
Flash control: 8 levels of output control (1/128~1/1), 29 levels of fine tuning
External interface: hot shoe, PC port
Additional features: Rear-curtain sync, FEC, FEB, FEV, modeling flash, manual zoom, auto zoom, sound prompt, advanced setting, automatically saving setting, PC port, power saving mode and over heat protection
Dimensions: 60x190x73mm (Extended state)
Net weight: 600gSuit for:

1), Hot shoe TTL mode:
Canon 1Dx, 1Ds series, 1D series, 5DIII, 5DII, 5D, 7D, 60D, 50D, 40D, 30D, 20D, 700D,
650D/T4i, 600D/T3i, 550D/T2i, 500D/T1i, 450D/Xsi, 400D/Xti, 350D, 100D, 1100D, 10