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| Model No. | VC-818TX ETTL | VC-818TX ITTL |
| Compatible camera | 450D/700D/750D/7D/5D2/5D3/ 6D/7D2/1D3/1D4/5D4/5DS/ 1DX/70D/600D/800D/6D2/80D | D7000/D700/D750/D810/D90/ D4/D610/D5/D800/ D7100/D7500/D600 |
| Exposure control system | E-TTL autoflash, manual flash, stroboscopic flash | ITTL autoflash, manual flash, stroboscopic flash |
| Flash exposure compensation (FEC) | ±3 stops in 1/3EV increment | ±3 stops in 1/3 increment |
| Slave unit control | Under every channel controls 3 groups of slave unites isolate(A,B,C) | |
| Channel | Ch.1-8 | |
| Wireless radio ID | 1-30 | |
| Transmission distance | around 100 meters | |
| High speed sync | up to 1/8000s | |
| Manual flash | Output control range from 1/1-1/128 (in 1/3EV increment) | |
| Stroboscopic flash | up to 20 Flashes, up to 30Hz Frequency | |
| AF assist beam emitter | Yes | |
| Firmware update | Yes | |
| Power Source | Two AA alkaline battery or Ni-MH battery (not included in package) | |
| Size | 90*56*40mm | |
| Weight | 105g | |
| Flash ratio control | 1:8-1:1-8:1, 1/2 f-stop increment | |
| Flash exposure bracketing | ±3 EV in 1/3EV increment | |
| Flash exposure lock | Yes | |






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