Canon Speedlite 90EX Instruction Manual - Page 26
Set the flash ratio., Take the picture.
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2 Set the flash ratio. 3 Take the picture. Set the camera in the same way as with normal flash shooting. The flash ratio range of 8:1 - 1:1 - 1:8 is equivalent to 3:1 - 1:1 - 1:3 in stops (1/2-stop increments). The flash ratio under the Z mark is shown in parentheses below the scale. 8:1 4:1 2:1 1:1 1:2 1:4 1:8 (5.6:1) (2.8:1) (1.4:1) (1:1.4) (1:2.8) (1:5.6) 24
24
2
Set the flash ratio.
3
Take the picture.
Set the camera in the same way as with normal
flash shooting.
The flash ratio range of 8:1 - 1:1 - 1:8 is equivalent to 3:1 - 1:1 - 1:3 in stops (1/2-stop
increments).
The flash ratio under the
Z
mark is shown in parentheses below the scale.
(5.6:1)
(2.8:1)
(1.4:1)
(1:1.4)
(1:2.8)
(1:5.6)
8:1
4:1
2:1
1:1
1:2
1:4
1:8