Shanny SN600SN Master Flash i-TTL High Speed Sync 1/8000s GN62 Flashgun Speedlite for Nikon DSLR Camera

Features:
The set-top i-TTL flash：install it on the Nikon camera to achieve automatic flash photography.
Optical signal master control function, automatic wireless remote control.(optical pulse)
Optical signal slave function: off-camera wireless high speed sync flash(optical pulse).
Auto focus auxiliary functions.
Automatic zoom function, flash zoom position can be back and forth with the change of the local length of the lens.
Support to FX/DX frame switch over.

Specifications: 
Guider number: GN62 (ISO100, 200mm) 
Wireless Flash: Optical pulse transmission Master/Salve 
Flash mode: i-TTL, M, MULTI 
Zoom range: Auto, 20~200mm (When using wide angle dispersion plate is 14mm) 
High speed sync: 1/8000s 
Master flash: Master optical pulse signal transmission 
Slave flash: Optical pulse SLAVE, light trigger, S1/S2
Shutter Synchronization: High Speed Sync, Front-curtain Sync and Rear Sync 
Flash exposure compensation: Support (with an increment of 1/3 gear in +/-3 gear) 
Bracket exposure: Support 
Flash exposure lock: Support 
Modeling flash: Support 
AF Assist-focus: Support 
Manual flash: 1/128~1/1 (with an increment of 1/3 gear) 
Frequency flash: 1~100Hz 
Recycle time: Quick flash less than 2s, ordinary flash less than 3s 
Optical transmission distance: about 20m
Optical transmission channels: 4
Flash groups: Support for A/B/C
Power supply: 4 * AA size batteries (not included) 
External interface: Hot-shoe, PC synchronous interface, external charging interface
Package size: 9 * 11 * 21cm / 3.5 * 4.3 * 8.3in 
Package weight: 735g / 1.62LB 

Package List: 
1 * Speedlite 
1 * Mini Stand 
1 * Carrying Bag 
1 * User Manual(English&Chinese)