as i was walking down hillhouse ave today, noticed that  the shadows of leaves on the trees were out of focus and wondered why. the time was around 1pm, so the sun was shining directly from above. the shadows of street lamps which were of the smilar height were pretty sharply defined. but the tree leaves were blurry and the space betweem the leaves were almost perfectly circular, very very out of expectation for something found in nature. the circles of light were also of almost uniform size for those near each other. isn't this strange? i tried to reach my hand as high as i can to see if my fingers go out of focus, but i guess i wasn't as tall as a tree. the circular light space might be useful for painting foliages, a delimma that as bothered m.s. for sometime.