The Nikon D3S's maximum X-sync speed is 1/250s ... setting two groups to i-TTL, and another to Manual mode, for instance.) When you press the shutter button, the Master fires each group of ...

Nikon D3S Hand-Held Live View Displays In Hand-Held ... when in fact the camera has only focused -- something Nikon is careful to note in its manual. Also, the focus area on the LCD monitor ...