Amazing piece of glass. I purchased this 67mm K&F filter for my Tamron 17-70 that pairs with a Sony A6400, and it takes gorgeous photo's. I know people say "Why put another piece of glass in front of your perfect lens?" but that is far from the truth. This filter serves many purposes and well worth its price compared to other high end filters. Not only does it act as a protection from dust, scratches, and damage to the main lens, it also acts as a UV filter that gets rid of blue tones that reflects into the camera sensor. When buying a UV lens filter it's important to find a high percentage light transmission glass, 98% or better, allowing highest amount of light to pass through. This K&F Nano X Ultra Low is rated at 99.8% transmission! Its also rated at 0.1% reflectivity anti-glaring with its 28 layers of coating. The coating also helps making it more water and scratch resistant, and easier to clean. I was able to shoot some photo's of snow fall and really helped knowing I wasn't scratching my mains lens every time I had to wipe off the wet snow. Image quality also stayed crisp and clear with no impact on quality or shutter speed. Even on bright sunny days, I had no issues with unwanted glare and picture colors stayed true to what was represented. This UV Lens is truly amazing. It's thin aluminum profile helps keep it thin, sturdy, and light. The high quality glass, with its 28 layer coating, offers protection that doesn't effect image if not better. For 32 dollars, K&F has earned my trust and given peace of mind in protection of my $700 lens. Recommend and will buy from again. I've actually now purchased its ND+CPL filter, and another UV filter (a grade below this one with 24 layer coating). Stay protected and capturing one moment at a time!