The camera supports the following flash modes:
Y icon flashes if flash unit does not support red-eye reduction.
Red-eye reduction with slow sync is available only in exposure modes P and A. In modes S and M, red-eye reduction with slow sync becomes red-eye reduction.
Available only in exposure modes P and A. In modes S and M, slow sync becomes front-curtain sync.
In exposure modes P and A, flash-sync mode will be set to slow rear-curtain sync when the W (M) button is released.
Choosing a Flash Mode
To choose the flash mode, press the W (M) button and rotate the main command dial until the desired flash mode is selected in the control panel:
Studio Flash Systems
Rear-curtain sync cannot be used with studio flash systems, as the correct synchronization cannot be obtained.