Having studied photography for 4 years at college and worked for Kodak for 8 years I think I can comment. The use of telephoto lenses totally distorts the perspective and the fact that it is being shot "up" makes it worse. This is why a portrait photographer uses a telephoto lens when shooting portraiture, so that the persons nose doesn't look its actual size and is "flatter" with repect to the rest of their face. A wide angle lens has the opposite effect if used close up. Not to say that the heli's weren't low but not as low or as close as the pic makes them appear.