On this video, photographer Jay P. Morgan from the website the Slanted Lens takes a look at freezing action using speedlights and different shutter speeds.
On this shoot Morgan had several key things he wanted/needed to do:
- Shooting in direct sun.
- Freeze the rope.
- Blur the rope.
- Get interesting light.
To achieve all of the above he used speedlights as small reliable lighting that can freeze movement – notice the movement of the rope looks different when shooting in 1/50 second versus shooting at 1/200 of a second. The first gives a blurred rope while the second is able to freeze it completely – in both cases the flashlight is able to freeze the slower movement of the subject itself.