Lensbaby, maker of creative optics that let you take pictures you'd otherwise have to make in Photoshop is going after youthful crowd with its newest product, the Spark. The selective focus lens attaches to your Canon or Nikon DSLR, allowing you to create bokeh-rich images -- simply squeeze the unit to focus and tilt it on its axis to move the "sweet spot" as you go. The 50mm lens features a fixed f/5.6
