The B+W 040 Orange Filter is a high-quality screw filter specifically designed for use with lenses that have a 39-millimeter filter thread. This Black Mist Filter is ideal for photographers looking to achieve a special color nuance in their shots. With its precise color designation as an orange filter, it allows for targeted color correction and can significantly influence the mood of images. The filter has a width of 39 millimeters and is equipped with a diameter of 550 millimeters for slide-in filters. Using such a filter can enhance contrasts in photography and increase the visual depth of images. Therefore, the B+W 040 Orange Filter is a useful tool for creative photographers who want to expand their image design through targeted color filtering.