Searching the archives – this picture was captured in November 2013. A calm day on the sea at that time of the year! The name of the lighthouse is Færder Fyr and it’s located on the archipelago Tristein, three small islands in the outer Oslo fjord (ref. Wikipedia).
Short info/Technical data: Freehand (in a boat), f/14, ISO-100, 1/640, focal length 18mm, minor levels and color adjustments, converted to B&W