Owner's Manual

92 More on Photography
A Aperture, Sensitivity, and Flash Range
Flash range varies with sensitivity (ISO equivalency) and aperture.
Aperture at ISO equivalent of Approximate range
100 200 400 800 1600 3200 6400 m ft
1.4 2 2.8 4 5.6 8 11 1.0–6.0 3ft 4in.–19ft 8in.
2 2.8 4 5.6 8 11 — 0.7–4.2 2ft 4in.–13ft 9in.
2.8 4 5.6 8 11 — — 0.6–3.0 2ft–9ft 10in.
4 5.6 8 11 — — — 0.6–2.1 2ft–6ft 10in.
5.6 8 11 — — — — 0.6–1.5 2ft–4ft 11in.
8 11 — — — — — 0.6–1.1 2ft–3ft 7in.
11 — — — — — — 0.6–0.7 2ft–2ft 4in.