how do you take pictures with light delay?

[jamesw248]

it looks like this
http://a367.ac-images.myspacecdn.com/images01/86/l_6858a7528dea2f539b1f9649b9c666b6.jpg

alot of bands do it

 

[fhotoace]

Expose for the ambient light, move the camera is some creative way and set the flash for Slow Sync or Rear-curtain Sync.

PS, the bands don't do this ... their photographer does

 

[Captain132]

That's just the shutter speed set to a certain amount of time.