I had used a popular UV filter before. It's not bad. Only under certain conditions would there be glare or aberration. For the most part it worked fine. But it still bugged me. So I ordered this K&F UV filter. WOW! What a difference! The glass is SO clear you can't tell it's in the housing! And that is how clear my photos became with it on! Definitely worth the price difference! All my filters are now K&F brand. The quality is outstanding!

It is a filter, there is nothing to like or dislike.

works good fits good price good would buy again

Exactly as described

Was a perfect fit for my Nikon Z50! A must have for any camera to protect your lens and make it easier to clean. Found the price very competitive compared to similar filters.

Have 4 of these in 77mm, a 67mm & a 86mm. For the price, they're good, no noticible image quality issues, easy to wipe water off of. They do scratch fairly easy so depending on your usage you may need to replace yearly, and when used without a lens hood in sunlight or directly into sunlight you get blue ghosting (could be worse, but I remove it when shooting towards sun).
But quality vs cost, these are definitely the best option.

Protection for P900 lens

This filter just helps keep the gunk off the front element. This protection helps keep the lens from slowly getting micro scratches and ruining the whole lens. Easier to replace a filter then a lens.

Great clarity and protection for my lensp

I first purchased the K&F Nano Series filter for one of my lenses. I believe it was for my Nikon 80-200mm F2.8 D ED lens. That lens produces really sharp images at distance and is not a close focus lens, even noted by Nikon. I bought the lens used and it came with a beat up UV filter. I was getting ghosting and when I removed the filter the ghosting was significantly reduced. I ended up buying several more for my other lenses. I also use B+W filters too. Well made filters as well, but a little more costly. The K&F is by no means a $100 filter, but for the price it does what I need. I especially like the nano-coating that resists grease and water. Worked well when I was photographing at the beach. Easy to clean the sea mist off without smearing.
We really do not need UV filters anymore with digital since UV does not interfere with the sensor like it did with film. I simply use them to keep from having to clean the front elements of my lenses all the time. I feel reducing that to a minimum will prevent potentially scratching the element. I know there are a few schools of thought on this topic, but I just do what I am comfortable with. From what I read and can tell the filter is glass and not plastic, which is nice these days. I have them on all my lenses now and happy with them.