Thoroughly enjoyed adding an extra layer of protection to my lens from the elements. The protector didn't effect my image quality or auto focus. It provided a high quality image.

This is a basic UV filter. It seems to do a good job at protecting the camera sensor from UV rays and doesn't mess with the image quality

This is a great protective filter for a pricey lens. I recently ordered a set of diffusion filters from K&F Concept for one of my lenses and I was very pleased with the quality of the glass as well as the workmanship. I didn't hesitate to order this UV filter when it became available. I ordered the 55 mm version for a standard Nikkor lens that came as part of a DSLR kit. Years ago, I used UV filters on the lenses I used on my film cameras, but I am just now starting to learn my way around digital cameras. I imagine this might be helpful in some outdoor shots, but I was primarily interested in just protecting my lens. This filter is thin, light and attaches to my lens very easily. The optical quality of the Japanese-made AGC glass is very high. My images are sharp and I cannot see any aberrations in the glass. I appreciate that this filter is designed to be shock-proof, water-resistant and especially scratch-resistant as it is surprisingly easy to damage a lens or get it wet or dirty (and they aren't all that easy to clean). It is nice to keep dust off of my lens, and not to have to worry so much about something happening to it so I can just think about taking pictures. I have several other lenses in various sizes that are also in need of protective filters, and I will certainly be looking for this brand. I also like the sturdy storage case this lens arrived in. The current price of $32.99 is a very reasonable cost and such a worthwhile purchase so I know my expensive lenses are protected.

K&F makes solid filters, and this UV filter is no different. My 24-70 has been naked for some time and I decided it was time to get it a protective UV filter as I've brought it back into my rotation of travel lenses, so I ordered a matching 77 mm filter. The K&F filter surprised me when I first unboxed it. First, the case is fantastic. It's a hard-shell smoky-transparent plastic case that is secured with 4 tabs and a short rotation to lock and unlock it. It's a large filter case because the same case accommodates 82 mm filters, but it will also accommodate smaller filters down to 43 mm. And the filters won't slide around. But how? Inside the case are two conical sections of silicone, a small one with 2 ridges and a large one with 10. The large one has numbers next to each ridge indicating the size it fits (43, 46, 49, 52, 55, 58, 62, 67, 72, 77, 82). The small one with 2 ridges is meant to hold the opposite end of the filter and stabilizes it. So as long as your filter is one of those listed sizes, it should fit in this case and is held securely in place due to the silicone ridges. Now, it's held my single-layer filters without issues, but it doesn't accommodate my variable ND filters or filters with rotating handles/extensions that jut out.

The filter itself is very well constructed. The aluminum body has two sections of thick knurling built in so it's easy to grip the filter for installing and uninstalling. The filter itself doesn't noticeably impact my image quality on my 24-70 compared to without the filter when I examine an image up to 2x in Lightroom, and I don't notice a significant color cast either. For me, the K&F UV filter is well-constructed and good to use.

I added this to my Canon Rebel T3i camera. The camera is a few years old and I love it. Cleaning the lens is always a chore, you have to get out the right cloth and make sure not to scratch it! But with this on, I can just use my shirt. If I scratch it, it was $20 and I can get a replacement. I'm really happy with that!

First time out with the filter got caught in the rain at a soccer game. The rain was not forecasted and thus I didn’t bring rain gear for my cameras. I was amazed how the water beaded up on the filter and I was able to shake it off most of the time. As for image quality, I couldn’t tell the difference between this filters and a much more expensive B&W filter. I bought several.

With all my lenses, I use the K&F UV filter to protect against external influences, so the glass can be cleaned outdoors without hesitation (without high-quality cleaners/worries about scratches). If it does get scratched, I'd rather buy a new UV filter than a €2,000 lens. As already mentioned, I use the K&F UV filters for all my lenses because I am really very satisfied with the quality. Pros: -Price performance -No loose glass -No rattling -No extremely thin glass which is prone to breakage -Lens hood fits -Slim -no change in image quality (RAW) -Lens cap fits -Box included when not in use l I use the K&F UV lens for my lenses Filter as protection against external influences, so the glass in the outdoor area can be cleaned quickly without hesitation (without high-quality cleaners/worries about scratches). If it does get scratched, I'd rather buy a new UV filter than a €2,000 lens. As already mentioned, I use the K&F UV filters for all my lenses because I am really very satisfied with the quality.

indispensable for the 50th canon :D

Although it weighs tremendously like a spring treated even better than the other cheaper filters from the same brand, it's very thin and knurled for easy unscrewing and unscrewing. very satisfied

very good, high quality product! Flawless glass without annoying reflections. Accurate thread. When it rains, the water rolls off nicely. The filter is therefore also suitable for outdoor use. Even with my 10mm wide-angle lens, no vignetting is noticeable. The filter was delivered dust-free in a nice protective cover. With Silm you simply have a smaller surface to attack, here you can simply help yourself by taking rubber/Tetra Band and increasing the friction to turn it up. If that doesn't work either, I put my lens out in the cold (if it's not cold/then in the fridge) material contracts and repeat the process, has always worked until now.