Thank you Jakov. The idea for this photo was one of my girlfriend. I had tha camera on the dashboard of our car while we passed a lit store sign at night. She saw the image at the moment the light shone out through the lens. From a little experimenting I found this works best with my 105mm lens on the F which gives the most even lighting with a small sized lens. I guess other, longer tele lenses will do well too, but they are bigger of course.