A friend of mine from work moonlights as a photo editor for LA Record, a webzine that covers music. At my suggestion, she attended the Irvine show to take photos (not a metal fan, she nevertheless said the show was awesome). Here is a link to the photos she published: http://larecord.com/photos/2012/08/10/iron-maiden-verizon-amphitheatre. I think they are pretty darn good -- these are "pro-shot" from the photographers' well directly in front of the stage. Warning: the linked website contains spoilers, including the full set list.