Optical glass with high-definition image quality effectively isolates water droplets and water vapor. Aluminum alloy frame is more practical, reliable, and sturdy. Durable and scratch-resistant, robust and more. NIGHT Anti-Light Pollution Filter - Primarily used for night photography, this filter effectively blocks common light pollution sources, such as yellow light from high-pressure sodium lamps, streetlights, and artificial light pollution from lower index sources. Light pollution diminishes the charm of the night and reflects off clouds, causing color deviations. This makes the anti-light pollution filter essential! Due to different batches, there may be differences in the product's appearance, color, and printed text, which does not affect its use. Camera Lens Filter: NIGHT Anti-Light Pollution Color: Dark Gray Material: Lightweight aluminum frame optical glass Package Contents: 1 * Lens Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.