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| p.1 #2 · p.1 #2 · 1D MkIV, HSS with external strobes? Is This Possible? |
Canon Speedlites do true High Speed Sync (a Canon trademark) by pulsing the flash rapidly to simulate continuous light during the time the shutter slit is moving across the sensor.
Einsteins and similar monolights and pack-and-head strobes can't do this, but people have obtained faster-than-normal-sync shots by taking advantage of the (relatively) long trail-off of a regular strobe's pulse through changes in sync timing. Various names for this include Hyper Sync (Pocket Wizard) and others.
I'm not knowledgable on the specifics of the technique, but I know it has been done.
Another option, if you can shoot indoors or at night, is to use a normal-sync shutter speed combined with very low ambient light levels, low ISO settings, and smallish apertures to prevent the continuous light from recording. In that way, whether the shutter is open for 1/250 second, 1/200 second, or even 1/60 second, the strobe's 1/1000-second or faster pulse is what lights the subject frozen in time.
Edited on Apr 26, 2013 at 02:52 AM · View previous versions