How to HSS a speedlight with non hss fuction

<p>Hello is there any possible way to fire YN 560 II in HSS mode. The reason i ask this is that i want a cheap hss flash with an external power output </p>

<p>The easiest way is to buy a hss flash :-) Converting a non HSS flash to HSS seems to be difficult IMHO. You'd have to redesign the electronics.<br>

HSS sync puts out a series of short flashes, I don't think there is an easy way to trick a flash in doing this. </p>

<p>another problem with that is that most of the cheap hss flashes ex. YN dodnt have the external power output . </p>

<p>Look for a Triopo TR-981N TTL HSS unit. This flash does work with an external battery pack. </p>

<p>ND filter does the same thing.</p>

<p>It's not just the flash involved in HS synch. Most digital SLRs need an HSS enabled flash to be inserted in the hotshoe before they'll allow synchronisation above their X-synch speed. The fact that the flash output changes to a fast flicker mode is secondary to being able to force the camera to trigger on the opening of the first blind, instead of when it's fully open.</p>

<p>However, once you have an Auto-FP or HSS flash attached to the camera, then it's possible to synch almost any other flash with the camera using the P-C socket, since the P-C socket will follow synch with the hotshoe.</p>

<p>I know that Nissin's Di866 flash supports Auto-FP/HSS, and isn't too expensive compared to the big marque speedlights/speedlites.</p>