I like the size of the watch. It was fairly easy to set up and pair with my Galaxy Note 20 Ultra. The only issue I had was getting the units to convert to imperial. I contacted customer service and they promptly replied and was able to assist me with the conversion.

This is K&F Concept 24-layer coating, ultra low reflectivity 0.4% and anti-glare UV filter, better specs than the budget ones. Actually, I can't tell the difference with their cheaper similar models for my grandchild's photos. Of course the difference is there, so I use it for my most expensive f1.2/1.4 prime lenses. Maybe a thousand dollar lens should have a more expensive UV filter for some people.

The K&F Concept 55MM Polarizing Filter is a quality addition to my photography gear. The ultra-thin design and multi-coated Japan optics provide excellent clarity and reduce glare effectively. It comes with a lens cap, which is a nice bonus. The Nano K series lives up to its reputation and improves the colors and contrast of my photos. This polarizing filter is a great investment for any photographer looking to improve their shots.

A great filter, ultra-slim design makes this filter easy to carry, and it does not add any significant bulk to my bag. The filter rotates freely and feels well-constructed.

I have this ultra-low reflection uv filter in three sizes! It is very well made, easily threads on the lens, and provides great UV protection as well as preventing my actual lens from being scratched. Great value for the price! Picture quality is great through the filter. I use this filter for everything outdoors.

Why didn't I learn of these things 20 years ago? No, I'd buy a CP filter for every freaking size lens I needed. Then ND filters for just the ones I thought I'd use. I had to choose! The other day I dropped $210 for a sweet-ass high quality ND/CP filter. I had the same dread about having to buy at least one more at some point. But during the checkout process, Amazon recommends the adapters. Sunrise on Marblehead! The Universe is back in balance.

I needed an ultra-thin UV filter for my wide angle lens and this filter works great! I was still able to screw in the lens hood and not get any vignette in the corners. This filter also seems to alleviate some of the glare I experienced. The surface of the filter is super clear and doesn't interfere with my camera's autofocus. We recommend.

In my opinion this is a very nice black fog camera filter for my DSLR. It is made of high-quality optical glass with multiple layers of ultra-thin nanometer coatings and ultra-lightweight materials. The frame is very light and thin compared to some other filters I have. This filter is a 1/4 diffusion/fog filter and the changes from a regular, unfiltered lens are minimal. The same filter is available in smaller and larger strengths. But I figured 1/4 would be a good place to start experimenting and for general use. The price of this filter is very good considering you are getting a high quality multi-coated glass filter. From my various experimental shots, I believe this filter has a lot of potential for portraits and still lifes. I'd like to try it on more macro shots as well. I would definitely recommend this camera filter to anyone who is still shooting with a DSLR rather than their phone. ;-)