Graduated filters are photography tools used to balance exposure in images with varying light conditions. They are typically made of glass or resin and feature a gradient that transitions from dark to clear. This allows photographers to darken bright areas, like the sky, while keeping the foreground properly exposed. These filters come in various strengths and sizes, making them versatile for different shooting scenarios. They are particularly useful in landscape photography, where the horizon often presents a stark contrast between bright skies and darker land. Using graduated filters helps achieve a more balanced and visually appealing photograph.