A simple play with the X500's shutter and aperture in a dark setting. Setting the shutter speed at 10 seconds, the exposure to -2.0 and the aperture ratio to 6.0, I laid my pitch black shirt on the floor, turned off all the lights and let the camera got to work. While the shutter is open, I shined a small penlight moving across in a rapid pace for about 3 seconds and lighted the other two parts on a 3 to 4 second interval.
I originally wanted to capture the smoke rising from the ember, but I ended up with a glowing ember shot instead.
(Goverment Warning: Cigarette smoking is dangerous to your health)