I have setup lighting for a scene using the IR and gotten everything dialed in. But when then rendering to the VFB or directly in the Picture Viewer, I get much brighter results. I've stripped down the scene to it's basic shell. I will upload a scene file with machine and software specs and some stills for you in a moment (1508778665_EA-To-Corona-Devs.zip). I am not an arch viz guy by training, so excuse me if I am doing something wrong.