Absorbs UV light and reduces bluish cast of daylight. Does not require adjustments to exposure while in use. Constructed from optical glass for clarity as well as color fidelity. Multi-coated to prevent internal ghosting and reflections. Creates no additional coloration or contrast. Thin, aluminum-alloy filter ring helps to prevent vignetting while remaining durable and lightweight. 37mm front filter threads allow for use with other filters. General protection filter reduces dust, moisture, and scratches from reaching lens elements. Filter case for storage and transport.