User manual

machine, to create a variety of lighting effects. They are suitable for manual ﬂash

and TTL ﬂash.

2. In these two modes, the output brightness is adjusted as in the M mode.

S1 mode: This mode is suitable for manual

ﬂash environment. It will sense every ﬂash of

the main ﬂash and will trigger synchronously

ﬂashes. Your master ﬂash should be set in the

manual ﬂash mode and should neither use

preﬂash TTL ﬂash system, nor multiple ﬂash

red-eye reduction function.

S2 mode: This mode is suitable for TTL ﬂash

mode, also known as preﬂash cancel mode,

as this mode can ignore the preﬂash TTL and

synchronizes with the main ﬂash. So you can

support the master ﬂash in TTL mode.

Note: If the SLAVE light does‘t sync ﬂash with the MASTER ﬂash light in S1/S2

mode, pleaes set the optcial mode of SLAVE light and power output correctly.

Please avoid the following situations mentioned below:

• Avoid MASTER light to use red eye reduction function

• Avoid MASTER light to use instruction mode (Nikon) or wireless mode (Canon)

• Avoid MASTER light to use ST-E2 and the vice factory master ﬂash as a ﬂash

controller.

Note: If your camera does not have a built-in ﬂash (such as Canon 5D, 5D II, 5D III),

it is unable to use the SLAVE c/SLAVE n S1/S2 or Slave mode separately. Because

the SLAVE c/SLAVE n or S1/S2 mode require to use the Master light exposure. If you

need to use this feature, you need to purchase the original Canon ﬂash or ST-E2 as

a ﬂash controller.