A week ago I went to the Austin Rowng Center, a non-profit organization the shores of Lady Bird Lake in Austin, Texas. It was a “first timers” class. I was just trying to stay out of the way and take a few photos. These were taken right at sunset with my Canon 1Ds Mark III and 14mm f/2.8 lens. They are hand held, ISO 200, 1/320th, 1/80th, and 1/20th per second exposures at f/2.8. Auto bracketed at 1 2/3 stop separation, aperture priority. GPS coordinates +30°15′ 36.77″N, -97° 44′ 32.09″W. These are assembled in Photomatix and then saved as a 16bit TIF file and re-imported into Adobe Photoshop Lightroom 2.0. In the right hand image you can see the Ann W. Richards Congress Avenue Bridge, a.k.a. “the bat bridge”, where the Mexican Free-tailed Bats hang out.