Bought a Tamron 150-600mm G2 EF to photograph cars on the track. It uses a 95mm threaded mount. Required a quality UV filter to protect the huge front element from tire and road debris from passing cars. Works perfect!

I always have the lens hood on, so I can't speak for flare or ghosting.

Got it installed on the lens, the photo quality and looks seem great.

Installed it on the lens, the photo quality and appearance seem great.

I took a couple of pictures without a UV filter and then a couple of identical pictures with a UV filter. There was absolutely no distortion or quality change. None at all. Pretty amazing I didn't even notice anything was on. This is a quality product and I am very happy with this purchase.

Have filters from B + W Hoya Pro Filter etc.
That seems to be ok. No defects noted so far.
Test will be how it holds up over time.

As expected, easy to assemble. No problems.

For the price it's great, very sharp and there are hardly any aberrations or reflections.

For the price it is great, very sharp and there are hardly any aberrations or reflections.

I almost returned it when I found out my lens came with a complimentary $50 Sigma lens UV filter. The optics on it are wonderful, but I'm about to go to Niagara Falls and I imagine I don't want to marry my lens cloth.

I thought - why not just test them both under the sink before sending it back? So glad I did!

As if by magic, this K&H filter drains and all the water disappears. The free Sigma filter? It sucks the water! And it's hard to get off!

If you received a free high-quality UV filter and stay dry 24/7, no upgrade is needed. Do you value versatility in all weathers? Buy this now!

I first bought 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. This lens produces really sharp images at a distance and is not a close focus lens, even noted by Nikon. I bought the lens used and it came with a dented UV filter. I got 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. Well-made filters too, but a little more expensive. The K&F is by no means a $100 filter, but for the price it does what I need it to do. I particularly like the grease and water-repellent nano-coating. Worked well when I was shooting at the beach. The sea fog is easy to remove,
We really don't need UV filters anymore with digital because UV doesn't interfere with the sensor like it did with film. I just use them to avoid having to constantly clean the front elements of my lenses. I think keeping this to a minimum will prevent potentially scratching the element. I know there are a few schools of thought on this subject, but I just do what I'm comfortable with. From what I've 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 am happy with them.