I happened to look out the back window on a bright summer day, and saw my daughter blowing bubbles in the backyard. I quickly grabbed my 70-200mm/f2,8 lens and stealthily snapped this shot. I wanted a fast shutter speed to capture the bubbles, floating in the air, but I also didn’t want my depth of field so shallow that the bubbles were extremely out of focus. In this case 1/640 sec. at f4 (zoomed to 130mm) was the combination I was looking for. Just enough motion blur at the source of the bubbles to make it interesting. The remaining bubbles are just out of focus enough to add a “dreamy” quality. To date, this is one of my favorites.