Gammarus sobaegensis (Uéno)(보통옆새우)(2008년 월악산)Canon | Canon EOS 450D | aperture priority (semi-auto) | Auto W/B | 0.020 s (1/50) (1/50) | F/0.0 | 0.00 (0/1) | 0.00(0/1) | ISO-640 | Flash-No | 2008:11:14 10:49:05