Yes. With the camera set at a high speed to really capture that single frame, you need a ton of light. That’s why the background isn’t visible at all, those week fluorescent lights aren’t strong enough for the settings of the camera, but the flash (strobe) lighting is. If those didn’t go off, you would total darkness, except for the one with a bit of fire in it.
For these you’ll notice almost everything is in focus. While it is true you can use HSS and a fast shutter, it is far more likely he’s shooting at f8 or higher with a low iso. Even on cheap flash models your flash duration is typically faster than most cameras highest shutter speed (except in hss when the duration is intentionally longer so it can sync with the shutter). 1/10000 or faster is achievable in most mid range flashes.
Yes. With the camera set at a high speed to really capture that single frame, you need a ton of light. That’s why the background isn’t visible at all, those week fluorescent lights aren’t strong enough for the settings of the camera, but the flash (strobe) lighting is. If those didn’t go off, you would total darkness, except for the one with a bit of fire in it.
For these you’ll notice almost everything is in focus. While it is true you can use HSS and a fast shutter, it is far more likely he’s shooting at f8 or higher with a low iso. Even on cheap flash models your flash duration is typically faster than most cameras highest shutter speed (except in hss when the duration is intentionally longer so it can sync with the shutter). 1/10000 or faster is achievable in most mid range flashes.