There is this house down the street which has one of those new, white plastic vinyl fences around the front yard. This particular fence is constructed in such a way as the vertical members are the width of the spacing between members(about 2 inches or so) More importantly, the top of the fence line changes horozontaly, kind of like a wave(I suppose for aesthetic reasons) with some ornamental du-dad fashioned atop each vertical fence element. Anyway, when I drive to work each morning, the sun is above and behind the fence. I notice the interferance pattern, but a startling thing happens as I approach, roughly, about 100 feet from it: A black and white interferance image of the back fence, with all the du-dads, appears with exceptional crispness and is about 4-times larger(width-wise) than the fence itself. It is an awesome sight, an have seen it hundreds of times. It appears as though I am looking at a magnified negative image of the back fence with exquisite detail. When the sun is not behind it the image is barely noticable. Is this a common feature of interferance patterns? Also, if I take the time to take pictures, will the phenomenon show up?