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.
11/02/2025
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.
11/02/2025
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.
09/02/2025
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.
01/02/2025
All my lenses have K&F filters for them. After I scratched an expensive lens one time, I've always used a UV or Protective filter on my lenses. K&F tend to be good quality and solid construction.
27/01/2025
The lens is so clear that when I opened the package, I thought they had mistakenly sent me just a ring. It took several attempts of rolling it around in the desk light to see that there was actually glass in there. And talk about CLEAR photos! No UV haze what-so-ever! No ghosting, no aberration. I wish K&F Concepts also made lens converters. I need this level of quality at this affordable price!
27/01/2025
This filter is so "invisible" and non-interfering with the image that, frankly, I don't know what advantage those double-triple priced filters can add to that... And I am THE pixel-peeper with unconventionally high standards. Now I know what to buy for all my lenses.
26/01/2025
Main purpose is lens protection while adding no effects to the image quality. This UV filter meets these requirements.
26/01/2025
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.
23/01/2025
Got this to replace my old filter because of a scratch, and the difference was like night and day. This filter is noticeably clearer, like so clear you almost can't see the glass when looking at the front of the lens.
The threads on the front are plenty deep, despite the low-profile edge. My polarizer threads completely in with no trouble.
Definitely good value, especially with how inexpensive this filter is.
The threads on the front are plenty deep, despite the low-profile edge. My polarizer threads completely in with no trouble.
Definitely good value, especially with how inexpensive this filter is.
13/01/2025