long exposure photographic filters or modes are available in all many phones except samsung. these modes are available within the camera modules in Xiomi and BBK owned mobiles where as it created after image capture by iphone by processing the "live photos" of a scene. even though this can be done via pro mode, but setting of shutter and iso values to the situation requires more trail and error attempts.a dedicated option to capture these light trails and water flows would make photos more elegeant if it is incorporated in camera module. another possibility is to process the image after capture. since motion photo feature is already available with S20 series,by processing the motion photos of a particular scene, long exposure photos can be created like what iphone is doing. so my suggestion is to add these features in camera module for enhanced camera experience for the camera enthusiasts.
