Why Nikon D700 and studio flash Godox Quicker 600 & Pixel King high speed sync limits to 1/320!

Started Dec 11, 2012 | Questions thread
antares103
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Re: Why Nikon D700 and studio flash Godox Quicker 600 & Pixel King high speed sync limits to 1/320!
In reply to Hugowolf, Dec 11, 2012

Pixel Kings do (or are supposed to) fudge the sync speed, similar to the TT system of Pocket Wizard.

However, this fudging has limitations. The "hypersync" method relies on flash durations long enough to emulate a continuous light source during the time the shutter is open. The Quicker has...well..quicker flash durations. The fudging requires a longer flash duration than 1/320 of a second. The specs say 1/5000 - 1/800, which I assume to be t.5 times, which translates to 1/1600-1/250 t.1 times.

Too short of a flash duration will have the flash pulse die off before the entire frame gets a chance to be exposed. Nothing can be done to High speed sync a fast duration flash with a focal plane shutter. A flash with a longer flash duration, long considered less desirable, is actually better for the "hyper sync" method. When the remote manufactuer says it will 'hypersync", it is only saying it will trigger early enough, but cannot guarantee it works with all flashes, because there are flashes that it WILL NOT work with.

Typically studio lights have their fastest duration at full, and i do not see any indication of IGBT in this flash, so I assume it holds true here. Try lower powers and see if the results improve.

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