Aperture, Sensitivity, And Flash Range - Nikon D700 User Manual

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 programmed auto exposure mode (mode P), the maximum
aperture (minimum f-number) is limited according to ISO
sensitivity, as shown below:
3.s 4 s s.0 7.1 8
For each one-step increase in sensitivity (e.g., from 200 to 400),
aperture is stopped down by half an f-stop. 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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