As dusk was approaching I went to the dock at the edge of the lake. The water was rippled by the wind. To make it smooth I put on a 10 stop neutral density filter. Think of a piece a grey glass you can’t see through. This allows me to make long exposure image to smooth out water or eliminate objects that move. The camera will only see what stays still long enough. This was a 5-minute exposure to smooth out the water and bring enough light to create this image.