The magnetic mount makes it easy to attach a filter quickly. The magnetic lens cap is nice, and has a strong adhesion. I have used it in the field recently, and it has worked well
26/09/2025
FYI, this does not let you attach filters on top of this I'm assuming because of the magnetic cap
24/09/2025
Just received today. It feels light-weighted, even a bit flimsy, when I hold it in hand. Yet it feels reasonably good quality. Compared to the B+W filters I have, it seems to have a thinner glass substrate. Given the 95mm size I even feel that the glass could warp under stress although I know this is unlikely. I am curious about its optical performance. Price wise this is unbeatable which is all other UV filters should be priced at. There is simply no justification to see a UV at $200 or even $300. Selling a UV at $200-300 sounds to me like people want the money but don’t want to work reasonably hard.
23/09/2025
I purchased this for a Vortex Razor spotting scope to protect the front lens. I've done this for most of the spotting scopes I've owned as just another level of protection for the glass, as I do for all my camera lenses...it might be over much, but I'd rather have to replace this filter after days in salt air or other moisture. Using the filter forfeits the use of the rubber lens cover, but the Vortex comes with a neoprene cover so the rubber cover is a bit overkill. This was one of the least expensive filters for the size, and it fits a Vortex Razor scope with an 85mm objective.
23/09/2025
I needed to protect my FZ300's lens and this filter has some good reviews.
The overall quality seems very good and the packaging works well, if larger than needed. The filter threads on nicely without impairing the hood fitment, reverse-stowed, or deployed, and doesn’t show any vignetting at 25mm. There appears to be no noticeable impairment of the photo quality.
The glass does seem to attract dust and needed several cleanings before I could mount it on the camera without particles on the inside. The outside needs brushing off frequently.
I’ll update if I find any other issues in future, but this filter seems a good buy.
The overall quality seems very good and the packaging works well, if larger than needed. The filter threads on nicely without impairing the hood fitment, reverse-stowed, or deployed, and doesn’t show any vignetting at 25mm. There appears to be no noticeable impairment of the photo quality.
The glass does seem to attract dust and needed several cleanings before I could mount it on the camera without particles on the inside. The outside needs brushing off frequently.
I’ll update if I find any other issues in future, but this filter seems a good buy.
21/09/2025
This is a phenomenal filter to protect my lens. And all the comments saying the cap is difficult...I’m sorry but please work on your grip. It’s really not difficult at ALL. Anyone who’s thinking of getting its great.
20/09/2025
LOVE LOVE LOVE This, Perfect For The Canon EOS R5c and my RF L Lenses. Love The Magnet Hold! Bill Mahon Photo, Video & Drone
17/09/2025
always get filters with non-slip design when it's available. It makes a big difference. I compared it to Hoya HD2. I shot this on Canon M50 with Nikon 35-70mm f/2.8 AF ZOOM-NIKKOR. 1) No filter. 2) K&F. 3) Hoya HD2. Sure it's not a great test but I can't tell any difference between all 3. The Hoya was visually as good as K&F except it was so static I had to return it. I also didn't like that it wasn't non-slip. The K&F is not static at all and very easy to clean. If there is no reflection, it looks like there is no glass in the ring. A bit like magic. It's very well done. I use it on my Zeiss 50mm f/1.5 Sonnar T* ZM. There is no play and it fits perfectly. Very happy with the purchase.
13/09/2025
purchased a K&F Concepts Nano X magnetic filter package from Kentfaith probably a week or so ago. That package included a 77mm magnetic ring, CPL and two ND filters plus a cap. I liked the filter and magnetic system so much that I bought this UV filter for another lens. I can now switch between lens and filters with ease. I keep this UV on one lens at all times and the magnetic cap is fantastic. Maybe a little difficult to remove for shooting but I’ll get used to it and I would rather in be hard to remove than falling off all the time. The price point is good too which, along with the filters being multi-coated and waterproof - is why I chose K&F over other brands. So far on my test shots I have not seen any color shift but I nearly always shoot at 5000K so it’s very easy to adjust WB in Lightroom or Photoshop. I am using these filters with Nikon Z8, Nikkor X 20mm f/1.8, and Tamron 30-150mm. My next purchase will be a Nano X light pollution filter for astrophotography.
13/09/2025
It's great other than the fact that it's a bit too wide preventing me from taking the lense's sun-hood on and off without removing the filter, which for me defeats the whole purpose of the magnetic cover. I am using the "Sony 55mm F1.8 Sonnar T FE ZA Full Frame Prime Lens - Fixed" Edit: K&F Customer support reached out and sent me a non-magnetic Lens Filter as a compensation. I am satisfied from their customer service.
12/09/2025