This Freewell CPL Filter is designed for use with your Autel X-Star or X-Star Premium quadcopter. The filter helps to remove unwanted reflections when shooting non-metallic surfaces, such as water or glass. It also provides color and contrast enhancement by reducing glare. The filter is made with HD glass and features a multi-coating that supports shooting professional-level 4K video with your X-Star. The filter is lightweight, so it won't add significant weight to the gimbal, and it installs quickly and hassle-free.