Receding light on the rocks of Arches National Park, UT. Moments after this shot my tripod tipped over and broke by beloved Nikon D200. Fully extended tripod/ Solid Rock impact. Luckily repairs were minor. Replacement of top lcd and top plate. Sigma 10-20mm came out unscathed. Not bad consittering the imapct which had me beliving it was all done for. Both brands are tough!