Hi, I believe that you mean the blurring of the sharpness in the water? The blurring effect can be reached by using long shutter speed time - in this case 8 seconds. You have to use of course a tripod in order to keep the camera in place.
Thanks! You find always information about the camera, lens and possible other data under the picture in my gallery. In this case the camera was Mamiya 645 and the lens was 55 mm wide angle lens. Regards, Esa