The Class A mode cannot be set to manual mode if connected to a Canon camera .
In this case each packet TTL or M mode can only be set by the launcher interface .
When need to use rear- curtain sync, select this mode .
Canon TTL Master Mode
Grouping parameter settings
1 . Press the [MODE] button to select the transmitter mode is in Master Canon TTL
mode (as shown)
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2
3
4
5
6
1
High- speed sync
2
AF- assist
3
Wireless Channels
4
AB group flash ratio
5
Group C Exposure Compensation
6
Canon Master mode flag
Focal length
Aperture
Master TTL mode
Main light exposure
compensation
43
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8
9
10
7
8
9
10