Limit-telephotography involves photographing landscapes that cannot be  NOV 14 2007

Limit-telephotography involves photographing landscapes that cannot be seen with the unaided eye. The technique employs high powered telescopes whose focal lengths range between 1300mm and 7000mm. At this level of magnification, hidden aspects of the landscape become apparent.

Trevor Paglen uses this technique to take photographs of military bases surrounded by miles of restricted land. (via 3quarksdaily)