A graduated filter is a photographic filter that has a coloured or neutral-density section which gradually decreases in density toward the centre, while the rest of the filter remains clear. This allows selective control of exposure and colour in specific areas of the image.
Graduated filters are commonly used in landscape photography to balance bright skies with darker foregrounds, enhance contrast, or create creative lighting effects. Understanding how to use a graduated filter helps photographers achieve more balanced exposures and visually striking compositions.