BNC connectors on the back of an old TV monitor. I set my camera to aperture priority and set it to the widest (f/3.3 for this lens at this focus distance) so I'd have the least depth of field. My result is that only 1 column of the connectors is in focus, everythign else is blurry. I also bounced my flash unit off a wall to the left, so the lighting is a bit different than if I'd used it straight on. I used levels and curves in Photoshop to get that super-contrasty look.