When I complete an interior shoot I grab the 85L and have a walk around the space shooting wide open (f/1.4 - f/2.0) without the tripod. It's the best part of the shoot - forces you to look at the details and resolves the light in a different way to any other lens. It's an expensive lens but worth every penny and probably Canon's finest. Here are some details from Studiofibre's Net-A-Porter interior and some from JMDA Chaophraya.