It's picture day in steampunk Gotham City, and Batman brought his whole family to get their photos taken! He even took along his pals Zatanna and Wonder Woman, and also a few members of his rogue's gallery (Steampunk Batman is very polite).

These incredible cosplayers were photographed at last year's SDCC by Mike Rollerson; check out more of his incredible cosplay photos here.

[Via Fashionably Geek and Geeks Are Sexy]