The northwest corner of the glass-block-windowed laundry building on Alcatraz. The shape of the heavy industries building can be seen just outside. I let the exterior, bathed in strong sodium vapor light, burn in for 200 seconds while I lit the interior with natural LED flashlight. Rather than shining it directly onto the walls, I bounced it off the walls outside the frame, filling the room with a diffused, soft glowing light. I knelt below the heater on the ceiling and lit it with snooted red LED flashlight for a few seconds. My body screened the light source from the camera and I was in and out of the frame before I began to appear in the image.