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<blockquote data-quote="WayneF" data-source="post: 228597" data-attributes="member: 12496">Yes, you can use Auto FP mode (if your camera and flash support it), and use any faster shutter speed with wider aperture in sunlight (FP range is limited, but probably sufficient).Or using 1/200 second sync with regular flash can work. The flash is much faster than the shutter (shorter duration), esp true at closer range with reduced flash power (low power is very fast).&nbsp; This is standard high speed flash photography stuff....&nbsp;&nbsp; Low speedlight power is extremely fast, in a dim environment.Bright continuous ambient (from the sun) can still blur motion that the flash could stop.&nbsp;&nbsp; Then reduce the ambient exposure at least a couple of stops, to be a negligible ambient.. then the speedlight can stop it, and the ambient won't blur it.&nbsp; Getting the ambient &quot;right&quot; is not what you want.&nbsp; You want the ambient picture to be dark, and then let the flash illuminate it.&nbsp;&nbsp; Sunny 16 says ISO 100 is 1/200 at f/11, so to get ambient dark and not exceed sync speed means f/22 or smaller...&nbsp; so instead, try to work in the shade.The Nikon flash manuals have a duration specified in the spec chart in the rear of the manual.&nbsp; That is about regular speedlight mode.&nbsp; But in FP mode, the flash becomes continuous (longer than the shutter travel), and cannot stop motion at all...&nbsp; All you have then is the shutter speed, same as in daylight.</blockquote>

[QUOTE="WayneF, post: 228597, member: 12496"] Yes, you can use Auto FP mode (if your camera and flash support it), and use any faster shutter speed with wider aperture in sunlight (FP range is limited, but probably sufficient). Or using 1/200 second sync with regular flash can work. The flash is much faster than the shutter (shorter duration), esp true at closer range with reduced flash power (low power is very fast). This is standard high speed flash photography stuff.... Low speedlight power is extremely fast, in a dim environment. Bright continuous ambient (from the sun) can still blur motion that the flash could stop. Then reduce the ambient exposure at least a couple of stops, to be a negligible ambient.. then the speedlight can stop it, and the ambient won't blur it. Getting the ambient "right" is not what you want. You want the ambient picture to be dark, and then let the flash illuminate it. Sunny 16 says ISO 100 is 1/200 at f/11, so to get ambient dark and not exceed sync speed means f/22 or smaller... so instead, try to work in the shade. The Nikon flash manuals have a duration specified in the spec chart in the rear of the manual. That is about regular speedlight mode. But in FP mode, the flash becomes continuous (longer than the shutter travel), and cannot stop motion at all... All you have then is the shutter speed, same as in daylight. [/QUOTE]

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