I caught a photo of some lighting from my back porch just before a storm last week. It was actually a little harder than I thought it was going to be, and I’m going to have to really practice a bit more in the future.
This strike was photographed using a Canon 5D Mark II with a 70-200mm f/2.8 IS lens. ISO was set at 100 and the exposure was 5 seconds.
Click through on that image for a larger view, or if you would like access to the full size version, I posted it over on Flickr.