166A Aperture, Sensitivity, and Flash RangeFlash range varies with sensitivity (ISO equivalency) and aperture.Aperture at ISO equivalent of Approximate range100 200 400 800 1600 3200 6400 12800 m ft1.4 2 2.8 4 5.6 8 11 16 0.7–8.5 2ft 4in.–27ft 10in.2 2.8 4 5.6 8 11 16 22 0.6–6.0 2ft–19ft 8in.2.8 4 5.6 8 11 16 22 32 0.6–4.2 2ft–13ft 9in.4 5.6 8 11 16 22 32 — 0.6–3.0 2ft–9ft 10in.5.6 8 11 16 22 32 — — 0.6–2.1 2ft–6ft 10in.8 11 16 22 32 — — — 0.6–1.5 2ft–4ft 11in.11 16 22 32 — — — — 0.6–1.1 2ft–3ft 7in.16 22 32 — — — — — 0.6–0.8 2ft–2ft 7in.In mode P, the maximum aperture (minimum f-number) is limitedaccording to ISO sensitivity, as shown below:Maximum aperture at ISO equivalent of:100 200 400 800 1600 3200 6400 128002.8 3.5 4 5 5.6 7.1 8 10If the maximum aperture of the lens is smaller than given above, themaximum value for aperture will be the maximum aperture of the lens.A See AlsoFor information on:• Locking flash value for a metered subject before recomposing aphotograph, see “FV Lock” (0 169).• Enabling or disabling auto FP high-speed sync and choosing a flashsync speed, see A > Custom Setting e1 (Flash sync speed, 0 265).• Choosing the slowest shutter speed available when using the flash,see A > Custom Setting e2 (Flash shutter speed, 0 265).
