Nikon D300 D300 User's Manual - Page 434

Aperture, Sensitivity, and Flash Range The range of the built-in flash varies with sensitivity (ISO equivalency) and aperture. Aperture at ISO equivalent of Range 200 400 800 1600 3200 m ft. 1.4 2 2.8 4 5.6 1.0-12.0 3ft. 3in.-39ft. 4in. 2 2.8 4 5.6 8 0.7-8.5 2ft. 4in.-27ft. 11in. 2.8 4 5.6 8 11 0.6-6.1 2 ft.-20 ft. 4 5.6 8 11 16 0.6-4.2 2ft.-13ft. 9in. 5.6 8 11 16 22 0.6-3.0 2ft.-9ft. 10in. 8 11 16 22 32 0.6-2.1 2ft.-6ft. 11in. 11 16 22 32 - 0.6-1.5 2ft.-4ft. 11in. 16 22 32 - - 0.6-1.1 2ft.-3ft. 7in. 22 32 - - - 0.6-0.8 2ft.-2ft. 7in. The built-in flash has a minimum range of 0.6 m (2 ft.). In programmed auto exposure mode (mode e), the maximum aperture (minimum f-number) is limited according to ISO sensitivity, as shown below: Maximum aperture at ISO equivalent of: 200 400 800 1600 3200 3.5 4 5 5.6 7.1 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. n 408