B07PLFHBZ1 Godox Thinklite TT685C TTL E-TTL 2.4GHz GN60 High Speed Sync 1/8000s Wireless Master Slave Camera Flash Speedlite Speedlight Compatible for Canon Cameras&S-R1 Flash Adapter&AK-R1 Flash Head Accessory

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Flash Duration: 1/300 to 1/20000 seconds. Sync mode: High-speed sync (up to 1/8000 seconds), first-curtain sync, and second-curtain sync. GN60 (m ISO 100, @200mm). 22 steps from 1/1 to 1/128. Stable consistency and color temperature with good even lighting.
With built-in 2.4G wireless flash transmission and TTL compatible flash, your shooting will become simpler.
Compatible for EOS cameras (E-TTL II autoflash)
Use dot-matrix LCD panel to make clear and convenient operations. Support with firmware upgrade.
Godox Round Head Accessories Adapter S-R1 can make camera flash install AK-R1 round head accessories to achieve creative light effects with great convenience and portability.