... 100, 105mm)Flash mode: TTL,M,MULTIWireless trigger: N’s & C’s wireless system/S1/S2 pre-flash-canceled modeWireless triggering ... ~25m indoor, 10~15m outdoorSlave groups: 3(A, B, and C)Channels: 4Zoom range: auto, 24, 28, 35, 50, 70, 80, 105mmVertical ...