Cologne Cathedral at the blue hour - the classic photo motif that is often taken by photographers from the Rhineland. The location at the Hohenzoller Bridge with the optimal perspective is well attended at the blue hour and you have to be there some time in advance to get a good location for your tripod. Several videos on YouTube provide information and also explain corresponding optimal camera settings from the perspective of the respective authors.
Imitation is worthwhile with suitable suggestions, in order to finally realize your own ideas. With this recording e.g. on the other hand, a silky water surface with colored reflections should become achieved disturbed as little as possible by bicycle or pedestrian on the busy bridge. In addition to luck, this meant the shortest possible exposure time, which was just long enough to meet the first criterion. But the admission conditions remained favorable. Even a last cloud in the fading sunset glances into the picture in the upper left corner. Lucky :-)
