Samsung 12-24mm zoom for interiors
It's a good lens. I did some trials today with real estate (houses for the English!) work. This one is a straight jpeg out of the camera with minimal processing. It needs a bit of work and the edges trimmed but given it was done hand held at 1/25 it's fine IMHO.
The degree of technical knowledge of the fanboi owner is inversely proportional to the size of his ego.