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• SU-800, SB-400 or SB-R200
i-TTL
AA
Single flash
A
unit
GN
M
RPT
Instruction to flash unit
i-TTL
AA
M
RPT
i-TTL
AA
M
RPT
Transmission of flash color temperature information
Flash mode setting from camera
1
Not available when metering mode is set to Spot.
2
The remote flash unit can control Group A only.
3
This setting can be made using the flash mode (A56) of this camera. When S (manual) is
set, the flash is forcibly fired at the flash output that was set. If other flash mode is set, i-TTL
Flash is enabled.
C
Notes on i-TTL Flash
• The monitor pre-flashes are fired to measure the reflecting light from a subject in order to adjust
the flash output of the Speedlight.
• When shooting using i-TTL-BL flash, the flash output is adjusted with consideration for the balance
between a subject and its background light.
• When shooting using Standard i-TTL flash, the flash output is adjusted to achieve the standard
exposure value for the main subject without consideration for the background light. This setting is
optimal for taking pictures with emphasis on the main subjects.
• When shooting using i-TTL flash, set the flash control mode of the Speedlight to i-TTL before
taking pictures (except SB-400).
• When shooting using SB-700 or SB-400 and if Metering of the camera is set to Matrix or Center-
weighted, i-TTL-BL flash is set. If Metering of the camera is set to Spot, Standard i-TTL flash is set.
1
i-TTL-BL flash
Standard i-TTL flash
Auto aperture flash
Non-TTL auto flash
Distance priority manual flash
Manual flash
Repeating flash
2
i-TTL flash
Auto aperture flash
Manual flash
Repeating flash
i-TTL flash
Auto aperture flash
Manual flash
Repeating flash
Speedlights (External Flash Unit)
CLS compatible Speedlight
SU-800
SB-400
w
–
w
–
–
–
–
–
–
–
w
–
–
–
w
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
w
–
w
–
SB-R200
–
–
–
–
–
3
–
–
–
–
–
–
–
w
–
w
–
–
–
89
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