Reef display Album Nashville Zoo Image 171/225 Jun 01, 2012 14:46 Original Metadata Camera Model:Canon EOS 50D Original Time Taken:Jun 01, 2012 14:46 Shutter Speed:1/2 sec Aperture:f/22 ISO Sensitivity:160 Exposure Compensation:-1 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:21 mm some small crabs are also moving around