Slot canyon, Paria drainage, AZ: Canon EOS 5D woth 24-105mm f/4L Canon EF lens on tripod; 15 sec at f/16, ISO 100. Perspective is straight up to the canon opening.
![Ian Plant Gallery: [Sponsored Gallery]](http://www.popphoto.com/files/imagecache/beg_olgallery_thumb/_images/201305/detail-of-patterns-in-rock-los-glaciares-national-park-patagonia-argentina.jpg "Ian Plant Gallery: [Sponsored Gallery]")
