The product came in nice packaging and with a handy case that can store multiple filter sizes. The filter looks good and does not glare. I took several photos that look wonderful. I haven't explored many lighting situations yet, but since my main reason for the filter is to protect the lens, I'm happy.
21/12/2022
I'm usually against UV/haze filters due to concerns about their impact on image quality. However, I plan to use my Sigma 150-600 DG DN Sport (Sony E-mount) in fairly harsh conditions such as shorebird photography, surf photography and sports. So I gave in and bought this filter to protect the front element of the lens. In view of the fact that this K&F filter would probably be classified in the "middle class" in terms of price, I wanted to test whether it actually had an effect on the image quality. The attached image of a $20 bill was taken in exactly the same circumstances - 600mm at ISO 100, tripod with no OS. As you can see from the screenshot taken in the comparison view of my image editing software, the image on the right (with filter) is significantly sharper and has higher contrast. I am shocked! I fully expected to remove the filter if I wanted a better picture. Now I can leave it on 100% of the time and just wipe away any spills or dust without worrying about scratching the front panel. Strong recommendation!
20/12/2022
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.
16/12/2022
Nothing fancy about UV filters, you just don't want them interfering with your shots, K&F's does a great job with their glass filters. When you're investing hundreds of dollars on a lens, you want something that will protect it without distorting it, and K&F filters do that.
15/12/2022
Both lenses are Sigma lenses with 2 different brands of UV filters on them. The lens on the left is my 150-500mm with a different brand filter. On the right is my 150-600mm lens with the K&F filter. The left lens looks a little blurry, but the K&F filter doesn't. Doesn't reduce the picture quality I can tell. You can feel it's weatherproof, but I'm not testing it to see if it really is. Comes in a plastic case No complaints so far.
14/12/2022
I don't know how to describe it, but this UV filter is shockingly clear. It's like it's not even there, but it's there, and it looks beautiful too. If you've ever seen the glass that Apple stores use for their stores, so be it (Apple uses special glass for all of its stores and headquarters that's remarkably clear). This filter is like that. Haven't had it long enough to see if it really withstands scratches, bumps, water etc. but just from the first feel it seems like it does what it says on the tin.
13/12/2022
Very happy with this one, feels much safer carrying my lens around and don't have to worry about dust or water or anything anymore. Perfect easy fit.
11/12/2022
This lens filter is wonderful!!! The clarity I get with it is amazing. I plan to slowly put these on all my lenses.
10/12/2022