love it!!!! I got a step up adapter for my lens for this 77mm which is the size of the largest glass i've got. It's super nice to have just a magnet now and I can take it on and off. At least the cap you can with this product, I have another set of magnetic filters which work seamlessly with this product. The cap however can easily come off if you stack more of the magnet filters (which in my case are more K&F ones). Not a huge deal, the lens isn't very expensive and I don't really take it out in rugged environments. Overall can recommend for anyone looking to get into the magnetic filter ecosystem with something functional too.
04/08/2025
It’s always been suuuuper annoying having to change filters especially when you on a shoot or on back to back shoots. It can get hectic but this definitely helps!
02/08/2025
This filter fits my Nikon 17- 25mm f2.8 lens perfectly. It has no vignetting. Contrast and sharpness seem to be equal or better than the old Canon filter it is replacing. Granted it is through a visual inspection of images not a scientific test. The lens cap fits snugly. A standard filter also works should I misplace the magnetic one. Good value for the price.
01/08/2025
To be fair, I don't use the UV filters for UV protection. I haven't done photography long enough to know the difference between photos with or without the filter. What I can say, however, is that UV filters are a great addition to a camera lens to protect the glass from dust, liquids or scratches. For the price, its a very valuable addition to protect your lens investment.
27/07/2025
K&F rarely disappoints me. THis filter and lens cap work great. I have found no issues with it at all. It just works.
23/07/2025
I've been a big fan of K&F glass and optical performance. They may not be the best performer overall, but I feel they are definitely the best value in terms of cost to performance. The K&F magnetic MC UV lens filter continues to meet the expectations I've come to hold after using K&F filters for so long. Magnetic systems are fast, convenient, and becoming more and more mainstream, especially with stacking filters. The K&F magnetic system is also quite strong and I couldn't get the lens cap to fall off with my typical jostling movements, such as swinging my camera down, jumping up and down, or going up and down stairs. This worked both when I had the camera with a neck strap and when mounted to a backpack clip. It's safe to say that everything will stay put for my use scenarios.
22/07/2025
Really nice magnetic system for filters and reasonably priced. Picked this up for my EF 24-70 f2.8 and thought it would be worth the risk to see if magnetic filters were worth the time and trouble. The glass on the UV filter in the kit seems to be good quality and the magnetic option is going to make adding filters a breeze. Pics taken with my 5D Mk IV were the same with the K&F filter as those taken with my B&W and Hoya filters. Considering my B&W and Hoya filters were both right at $100, I'd say the K&F at around $50 is a bargain. I'll have to use it quite a bit more in less than desirable conditions to see how it fairs with dust and water. K&F Reportedly uses Japanese Optical Glass or Schott Glass which are both top rated glass for filters or lenses. Overall, I'd say the Nano-X series is well worth the money at half the cost of other name brand filters.
20/07/2025
The purpose of this filter isn't necessarily to change any of the visual characteristics of whatever I'm capturing on my camera (though K&F does make filters like that). I think it's the opposite. I think purpose of this seems to be to provide a layer of protection for my lens *without* changing what is captured. I'd much rather replace a $35 filter than my entire lens. The added bonus is that it comes with a magnetic lens cap designed specifically for this. I'm liking this enough that I'm considering picking up other K&F filters from this same series (Nano-X series) so that they'll be compatible.
17/07/2025
have been very skeptical about magnetic mounting system for lens filter. Now that I’ve been using the K&F magnetic filter with lens cap, I’m pleasantly surprise with how well it works. I’ve struggled with plastic lens cap popping off when I’m walking around or placing the camera in the bag. The K&F magnetic filter doesn’t come off accidentally in the bag or while I walk. The cap snaps onto the filter very securely and will not come off unless you physically pull it off. The UV filter is very nice and clear. I had a few water droplets on the filter and it beads up in a way that makes it easy for me to dab away with the microfiber cloth. The filter itself is clear and doesn’t hinder the image quality or the auto focusing features of the camera. I’m looking forward to trying out other filters in K&F magnetic system. So far I’m very impressed with the set and I would highly recommend these to photographers who need a quick change system for their filters.
14/07/2025
bought this for a Canon RF 600mm f/11 lens. I personally don't think that a UV filter provides much in terms of eliminating any impact of cutting back UV light hitting your sensor, but on expensive lens I will almost always use a UV for protection (along with a lens hood). This filter is part of K&F's Nano-X series of magnetic filters, and you can add other Nano-X filters to the UV filter here that screws in. The included lens cap also attaches magnetically. The magnet is VERY strong. I will consider other Nano-X filters, and adapt them via a step up ring to my other Canon lenses which are mostly 77mm. Recommended.
10/07/2025