Flash Control Mode
When an SB-500, SB-400, or SB-300 flash unit is mounted on the camera, the Flash control mode (built-in) option displayed when Flash control is selected in the photo shooting menu is replaced by Flash control mode (external).
In modes P, S, A, and M, this option can be used to choose the flash control mode and adjust the flash level and other flash settings. Settings for other flash units can only be adjusted using flash unit controls.
- TTL: Flash output is adjusted automatically in response to shooting conditions.
- Manual: Choose the flash level (Manual output amount) manually.