Nikon SB-600 user manual Setting the aperture, When shooting subjects closer than 0.6 m 2 ft

●●● Setting the aperture

Calculate the aperture by using this equation and table. To ensure the correct exposure, use an aperture smaller than the one obtained from the equation.

ISO sensitivity	25	50	100	200	400	800	1000
Coefficient (m/ft)	1.4/4.6	2/6.6	2/6.6	4/13	4/13	5.6/18	5.6/18

f/stop ≥ Coefficient ÷ Flash-to-subject distance

For example, at an ISO sensitivity of 100 with a subject 0.5 m (1.6 ft.) away and the wide-flash adapter in place, the suggested aperture is:

f/stop ≥ 2 ÷ 0.5 = 4 (in meters)

f/stop ≥ 6.6 ÷ 1.6 = approx. 4 (in feet)

Therefore, you should use at least f/4 or an even smaller aperture, such as f/5.6 or f/8.

uWhen shooting subjects closer than 0.6 m (2 ft.)

With the SB-600 attached to the camera, sufficient illumination of the subject cannot be obtained. In this case, use the SB-600 off-camera by attaching the optional TTL Remote Cord as shown below.

A

B

Use either the SC-29, SC-28 or SC-17.

•In Do flash operation where Monitor Preflashes are fired, when the SB-600 is used with D/G-type CPU lenses, you may not be able to get the correct exposure, because distance information from the lens is used. In this case, position the camera (A) and the SB-600 (B) at equal distances from the subject.

•For F5 cameras with the High-Magnification Finder DW-30 or DW-31, or F4 cameras with the High-Magnification Finder DW-20 or DW-21, use the optional TTL Remote Cord SC-24 instead of the SC-17.

Advanced operations

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