Guide Number (1/1 power @ 200mm): 60 (m ISO 100) / 190 (feet ISO 100)
- Flash Coverage: 20 to 200mm (14mm with wide panel)
- Auto zoom (Flash coverage set automatically to match the lens focal length and image size) and Manual zoom
- Swinging/ tilting flash head (bounce flash): 0 to 360° horizontally and 7° to 90° vertically
- Flash Duration: 1/300 to 1/20000 second
- Flash control system: TTL autoflash and manual flash
- Wireless flash function: Master, Slave, Off
- Controllable slave groups: Optical: 2(A,B); 2.4G: 3 (A, B, C)
- Transmission range (approx.): Indoors: 12 to 15m / 39.4 to 49.2 ft; Outdoors: 8 to 10m / 26.2 to 32.8 ft; 2.4G: 100m
- Master unit reception angle: 40° horizontal, 30° vertical
- Channels: Optical: 4 (1, 2, 3 and 4); 2