optical glass, ensuring high transmittance while effectively reducing reflection and distortion, providing clear image effects Specially designed for 10/11/12/13 cameras, fit perfectly and is and remove quickly without the need for additional tools Waterproof and dustproof, providing excellent scratch resistance and suitable for various sports scenes Lightweight design, almost without increase in camera burden, allowing you to flexible and at ease when photoshoots It can effectively reduce the intensity of light entering the lens, helping photographers to perform long-term exposures or record dynamic images in bright environments without causing overexposure