Nikon D800E User Manual page 72

[] Aperture, Sensitivity, and Flash Range
The range of the built-in flash varies with sensitivity (ISO equivalency)
and aperture.
The built-in flash has a minimum range ofO.6 m (2 ft).
In exposure mode P, the maximum aperture (minimum f-number) is
limited according to ISO sensitivity, as shown below:
......................................_Maximumapertureat ISO equivalent of: °_ ................ _-_..... !
If the maximum aperture of the lens is smaller than given above, the
maximum value for aperture will be the maximum aperture of the lens.
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