Photography <a href=" http://www.rabbiginsburgh.com/tag/soul-structure/ ">viagra professional online uk al</a> Another advantage of the design is a wide angle of view. This is where the designers took a cue from insects’ compound eyes. The reason flies can see behind them is that their eyes are made of thousands of tiny facets, each pointed in a different direction. The down side (for the fly) is that each of those tiny facets can’t focus very well. The artificial lens solves that problem by adjusting the fluid-filled lenses.