In evaluating the FS100, I attempted to determine its susceptibility to the "rainbow moire" patterns that plague the Canon and Nikon DSLRs. On this brick building it's evident. Certainly not as pronounced as on the DSLRs, but it's the same type of thing.
Might want to watch out for fine repeated patterns on clothing, or bricks, or venetian blinds or any other regular and repeating pattern. The effect is certainly reduced on the Sony as compared to the Canon DSLRs (look at my other Vimeo videos for some outrageous examples of how this issue affects the Canons!) but the FS100 still does have it, so you will still want to be aware.