Flash Ratio with E-TTL II
19
1.All (A+B+C)
R a t i o o f f, A / B / C t h r e e
flashes automatically fire
with same output, flash
e x p o s u r e c o m p e n s a t i o n
(FEC)can be set.
2.A:B
Set fire ratio (8:1-1:8
，
1/2-
stop increments) and flash
exposure compensation for
flashes of Group A and B,
Group C does not fire.
3.A:BC
Set fire ratio and FEC for
flashes of Group A and B,
FEC of Group C can be set
solely (Group C flash may
b e o ve re x p o s u re
to t h e
subject , suitable for use as
a backlight).
Flash fire ratio and FEC of the A, B, C three firing
groups can be
set
under E-TTL II flash mode.
Summary of Contents for E-TTL
Page 1: ...User Manual...
Page 31: ......
