Product Review

Technical Data:
Compatible Cameras: Canon EOS cameras (E-TTL II autoflash)
Guide No. (1/1 output @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)
·Manual zoom
·Swinging / tilting flash head (bounce flash): 0° to 360° horizontally and -7° to 90° vertically
Flash Duration: 1/300 to 1/20000 seconds
Exposure control system: E-TTL II autoflash and manual flash
Flash exposure compensation (FEC): Manual FEB: ±3 stops in 1/3 stop increments (Manual FEC and FEB can be combined)
FE lock: With 〈FEL〉button or 〈*〉button
Sync Mode: High-speed sync (up to 1/8000 seconds), first-curtain system, and second-curtain sync
Multi Flash: Provided (up to 100 times, 199Hz)
Wireless flash function: Master, Slave, Off
Controllable slave groups: 3(A, B, and C)
Transmission range:·Optic: Indoors: 12 to 15m /39.4 to 49.2 ft.; Outdoors: 8 to 10m /26.2 to 32.8 ft.; Master unit reception angle: ±40° horizontally±30° vertically, ·2.4G: 100m
Channels: Optic: 4 (1, 2, 3, and 4)
2.4G: 32（1-32）
Auto Focus Assist Beam: Effect range: Center: 0.6-10m /2.0-32.8 feet/ Periphery: 0.6-5m / 2.0-16.4 feet
Power Supply: Ni-NH batteries (recommended) or 4*LR6 alkaline batteries
Recycle Time: Approx. 0.1-2.6s (eneloop Ni-NH batteries of Panasonics).
Full power flashes: Approx.230 (2500mA Ni-MH batteries)
Power Saving: Power off automatically after approx.90 seconds of idle operation.(60 minutes if set as slave)
Sync Triggering Mode: Hotshoe, 3.5mm sync line, Wireless control port
Color Temperature: 5600 ± 200K
Dimension: 64*76*190mm (W x H x D)
Weight: 410g (without battery, camera flash only)

Package Contents:
1x TT685C camera flash
1x Protection bag
1x User Manual
1x LETWING Cloth
1x LETWING Color filter
1x Softbox