Made of premium optical glass with professional coatings and premium PC, it can filter strong light evenly so to weaken the light without affecting the color
Help you to avoid over exposure by reducing the volume of light getting through the lens so as to reproduce a true contrast of color
The filter has black paint on the edge of lens, which can prevent reflection from getting in to improve image quality
Ultra thin frame is helpful to prevent shadow of corner because it greatly decreases the distance between lens and filter, good for making professional photos