From the Adorama YouTube Channel:
If you use flash in your photography you might be aware that the shutter speed plays a vital role in controlling the amount of ambient light that's captured in an exposure. Usually when shooting in a studio, the cameras maximum flash sync shutter speed is fast enough to control the ambient light but if you love shooting with fast glass and wide apertures you need to master HSS flash aka high speed sync flash.
In this video photographer Gavin Hoey explains why and when HSS flash is helpful and then goes on to share his simple tips and tricks to make setting up HSS flash really straightforward. Once Gavin has everything ready he uses the set-up to shoot some eye catching portraits of a medieval knight!