Nightscapes - Robert Arn
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Bridge over River

Location: Natural Bridges National Monument
Date: 2013-03-12
Camera: Canon XSi (modified)
Lens: Sigma 20mm f/1.8
Mount: Still Tripod + Astrotrac
Shot: Mosaic
14x1/2000th second f/5.6 ISO 200 (Landscape)
14x5 seconds f/5.6 ISO 200 (Landscape)
16x1 minute f/2.8 ISO 1600 (Sky)
Processing: Photomatrix Pro, PTGui Pro, Matlab, Photoshop, Topaz