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There's Nert, dunno if he does photoshoots per se but he takes countless pictures per con and they tend to look pretty good considering he's not using top professional quality gear (I assume).
There's also Neolestat. I don't know what he goes to or if he'd bother anymore (and I'm almost certain he'd want payment, probably more than anyone else) but I know he's done at least a couple of cosplay photoshoots in the past.
And there's me but I don't count since I'm too damn lazy/drunk during cons to do anything.