Trial and error (mostly) of long exposures with a ND filter in broad daylight. Focal length 17mm hence curvature in horizon. Forgot to set aperture to f16+ except last one. Shot at 10:00am except last one at 6:00am into sun so lens flare is visible. It would have been better to have a surf beach rather than a virtual millpond. I see a long learning curve in front of me. What would you expect with looong exposures.