Godox TT685O Thinklite 2.4Ghz Wireless TTL Flash with External HSS High-Speed Sync For Olympus and Panasonic Lumix DSLR and Mirrorless Cameras

Specifications:
Flash Head

• Guide Number: 196.85' / 60 m at ISO 100 (200 mm Position)
• Coverage: Full-Frame, 20 to 200 mm, 14 mm (with Wide-Angle Adapter)
• Auto Zoom Head: Yes
• Bounce Head: -7 to +90°
• Swivel Head: 360°
• Flash Duration: 1/300 to 1/20000 Second
• Recycle Time: Approx. 0.1 to 2.6 Seconds
• Secondary Illumination: Modeling Light

Exposure Control

• Exposure Control: Sony ADI / P-TTL
• Flash Modes: Hi-Speed Sync, Second-Curtain Sync
• Power Range: 1/1 to 1/128
• Flash Compensation: -3 to +3 EV (1/3 EV Steps)

Wireless

• Wireless Operation: Radio (TTL/Manual) Up to 328.08' / 100 m, Optical Pulse (TTL/Manual) Up to 49.21' / 15 m (Master, Slave)
• Wireless Channels: 32
• Wireless Groups: 3
• Remote Timing Modes: Instant Sync, Skip Preflash

Power

• Internal Power: 4 x AA (Alkaline, NiMH)
• External Power Pack Compatible: Yes

General

• Mount: Shoe
• Off-Camera Terminal: 3.5 mm
• Dimensions (W x H x D): 2.5 x 3 x 7.5" / 64 x 76 x 190 mm
• Weight: 14.46 oz / 410 g (without Batteries)