Canon Speedlite ST-E10 - Grouped Shooting in Different Flash Modes

Gr: Shooting in a Different Flash Mode for Each
Group
You can set and shoot in a different flash mode for each firing group, with up to five groups
(A, B, C, D, and E).
The flash modes that can be set are (1) E-TTL II
/ E-TTL autoflash, (2) manual flash, and (3)
auto external flash metering. In flash mode (1) or (3), exposure is controlled to obtain
standard exposure for the main subject from all groups combined.
This function is for advanced users who are very knowledgeable and experienced in lighting.
1.
Press the <
> button.
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