The E-520 can almost be seen as an E-510 mk II. The body is almost identical to its predecessor, with a slightly larger screen and differently-colored button markings being the only thing to distinguish between the two. This is no bad thing, as the handling was something we really liked about the E-510. The E-520 does nothing to spoil this. It retains what is probably the most convincing build-quality in its class, thanks to excellent choice of materials - it feels rugged and impressive in a price bracket dominated by crude-feeling plastics.