Altered Reality: Correcting lens distortion
Sadly, even if you pay a lot of money for a lens, it is going to distort the image. As a general rule, the wider the lens' angle, the more it might distort the image—perspective changes, verticals lean inwards, people's faces appear almost caricatured. The more you might pay for a lens, the less it is likely to distort, but they all do and thankfully, Photoshop Elements has a tool, located in the Filters menu called Correct Camera Distortion. It should be called Correct Lens Distortion but, well, it works so let's not get too pedantic about its correct nomenclature.