The seeing in images attained by simply averaging all the 1500 frames in the two examples observed under good (upper panel) and poor conditions (lower panel) is represented by the red curves. The FWHM is 0.7″ for the upper and 1.1″ for the lower curve. The blue curves show the results when only shifting and co-adding the frames. The black curves represent the seeing when only the sharpest 15% of the frames are used for the co-added image. The FWHM is 0.4″ for the upper case and 0.7″ for the lower, clearly demonstrating the improvement in spatial resolution.