Couple of amazing videos showing lightning filmed at 7,207 images per second.[vimeo]http://vimeo.com/28457062[/vimeo]
A downward lightning negative ground flash captured at 7,207 images per second. A negative stepped leader emerges from the cloud and connects with the ground forming a return stroke.[vimeo]http://vimeo.com/30577412[/vimeo]
An upward lightning flash initiated from a TV tower in Rapid City, SD. Filmed at 7,207 ips the positive polarity leader moves upward and branches into two primary channels. The right channel is weak and unstable and exhibits prolific recoil leader activity as the branch struggles to establish stable growth. The entire sequence spans about 1/2 of a second.
Found on Vimeo, Original Source: www.weathervideohd.tv