1.Waterproof, Water-drops dropping on it will form a round droplet which will not spread around. Tilting the Filter with 30 degrees, the water droplets will scroll down, but will not leave a watermark.
2.Anti-oil: After using oily bulk of the pen smears the lens surface, it does not leave the strip pen marks, only some of the dots can be removed, which can be gently wiped with a paper towel or cloth.
3.Antiscratch According to the requirements of the U.S. military standard MIL-E-12397, using the standard friction test eraser with 1KG pressure wipes back and forth across the surface of the lens 20, no scratches or wipe marks.
2.Anti-oil: After using oily bulk of the pen smears the lens surface, it does not leave the strip pen marks, only some of the dots can be removed, which can be gently wiped with a paper towel or cloth.
3.Antiscratch According to the requirements of the U.S. military standard MIL-E-12397, using the standard friction test eraser with 1KG pressure wipes back and forth across the surface of the lens 20, no scratches or wipe marks.