Hi mbaddah,
Probably the biggest reason for capturing video is seeing conditions.
Look down a bitumen road on a very hot day and the end of the road looks like it is shimmering all over the place. By using video at say 10FPS(frames/second) you can capture the odd good frame. When run through programmes like Registax the bad frames are discarded, good frames are kept and aligned and then stacked together to bring out more detail.
Thats my very basic understanding of it.Hope it helps.
Cheers,
Duncan
