Originally posted by Docrwm Thanks. We have a little guy that shows up occasionally. I'll have to give it a go next time I see him.
Just to be clear - the concept is that you want to set the flash duration extremely short (usually 1/64 power or 1/32 power is really fast already). Thus - the image as written into the sensor is whatever the flash hits - and since the flash duration is super short (possibly even 1/40,000s), you get things frozen.
However - this is easiest to do indoors with controlled settings. Outdoors, you are limited by your flash sync speed, and the ability for your flash to overpower the ambient light.