Beichatianshan 北插天山
Beichatianshan 北插天山 20689

stairs put more repetitive strain on knees than uneven rock paths

NIKON D40, 35mm f/1.8
Aperture: 1.8, Shutter speed: 1/80, Focal length: 35.0 mm, ISO: 400, Bias: 0
Date/Time: 2010:08:22 13:47:35.30+8:00
Average color: gray32