Nikon 25464 D300S User's Manual - Page 310

❚❚ Manual Choose a flash level between Full and 1/128 (1/128 of full power). At full power, the built-in flash has a Guide Number of 17/56 (m/ft., ISO 200, 20°C/68°F). ❚❚ Repeating Flash The flash fires repeatedly while the shutter is open, producing a strobe-light effect. Press 4 or 2 to highlight the following options, 1 or 3 to change. Option Output Times Frequency Description Choose flash output (expressed as a fraction of full power). Choose the number of times the flash fires at the selected output. Note that depending on shutter speed and the option selected for Frequency, the actual number of flashes may be less than selected. Choose how often the flash fires per second. A "Times" The options available for Times are determined by flash output. Output 1/4 1/8 1/16 1/32 1/64 1/128 Options available for Times 2 2-5 2-10 2-10, 15 2-10, 15, 20, 25 2-10, 15, 20, 25, 30, 35 U 284