Traditional Culture Encyclopedia - Photography and portraiture - Kimbe EC400 flash, Canon 450D if set?

Kimbe EC400 flash, Canon 450D if set?

The flash duration can be short, but the shutter synchronization time is limited. Generally, the synchronization time of video lights will not exceed 1/250 s. So when the shutter speed exceeds this value, the flash time and shutter action will be out of sync, resulting in the problem of half bright and half black.