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<blockquote data-quote="WayneF" data-source="post: 229656" data-attributes="member: 12496">Well, that's good.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />&nbsp; &nbsp; The numbers do seem suspect, I just cannot imagine bounce on a 12 foot ceiling with ISO 400 and f/11.&nbsp;&nbsp; Possibly f/4?&nbsp; &nbsp; And full power level is NOT fast.&nbsp; Fast needs a lower power level, and needs any continuous ambient to be dim, that won't blur what the flash stopped.Here is a sample that shows the speedlight speed at various power levels<a href="http://www.scantips.com/speed.html" target="_blank">Capability of flash units for high speed photography</a>This shutter was open about 1.5 seconds.&nbsp; It was in a dim room, but not dark.&nbsp; There was a regular table lamp on across the room, but at ISO 100 f/16, the frame was dark.</blockquote>

[QUOTE="WayneF, post: 229656, member: 12496"] Well, that's good. :) The numbers do seem suspect, I just cannot imagine bounce on a 12 foot ceiling with ISO 400 and f/11. Possibly f/4? And full power level is NOT fast. Fast needs a lower power level, and needs any continuous ambient to be dim, that won't blur what the flash stopped. Here is a sample that shows the speedlight speed at various power levels [URL="http://www.scantips.com/speed.html"]Capability of flash units for high speed photography[/URL] This shutter was open about 1.5 seconds. It was in a dim room, but not dark. There was a regular table lamp on across the room, but at ISO 100 f/16, the frame was dark. [/QUOTE]

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