Nocturne, Muckross House, Killarney, Co. KerryMuckross House on a clear winter night, every window glowing against the dark of Killarney National Park. The interior lighting throws warm orange and green across the stone facade, and you can see the detail in every mullion and chimney stack. It's a building that looks its best when the crowds have gone home. Getting the exposure right meant balancing that interior light against a sky full of stars. Too long and the windows blow out. Too short and