High-speed sync is a super useful technological advancement in flash technology that makes life a lot easier for photographers using strobes, but that doesn't mean you should always use it. This helpful video will show you some situations where high-speed sync has an advantage and others where standard flash should be your choice.
Coming to you from Gavin Hoey of Adorama TV, this great video talks about how to choose between using standard flash and high-speed sync depending on the situation you're shooting in. High-speed sync is tremendously helpful, particularly in situations where you'd like to shoot at a wide aperture and there's a lot of ambient light, such as outdoor location portraits on a sunny day, and it saves you from having to fiddle with and try to focus using ND filters. However, it's not without its disadvantages, and it can actually be better to switch back to standard flash in certain situations. If you're not using a portrait-length lens and looking for very shallow depth of field, you might actually have more flexibility and get better results without high-speed sync. Check out the video above for the full rundown.