Comes well packaged and secure. Included is a filter, lens cap, cleaning cloth and a small lanyard. The filter fits securely on a 58mm lens, is very thin and has clear glass. Seems to work well on a few test shots and K&F has a good reputation for photography gear so I think it will be fine in the future. The lens cap is actually very good, better than any branded lens I have. It fits securely and I will use it wherever I can. The lanyard is orange which stands out and is good enough to use on a small or light camera (I realize it is intended for use on the lens cap). Cleaning cloth — what can I say? It cleans the lens or filter. Overall a good little package to protect your 58mm threaded lens from damage and dirt. Recommended

This K&F Concept Magnetic 58mm Lens ND Filters Kit is surprising good quality, everything from the packaging, to the storage carry case, to of course the filters! They fit my fuji xt2 stock lens perfectly. I do wish there is another GND filter in the kit. The magnetic filter snap on and off easily (but carefully!). I am not a photography expert but these seems great quality! I am very pleased with this K&F kit.

The filter fits perfectly with my Canon EOS 2000D 58mm lens and allows for effortless attachment and removal. The resulting photos are exactly what I hoped for and the filter works great. As I got into nature and plant photography, I discovered the value of the filter in full sunlight. It helps capture the right density, regulate exposure, improve contrast and minimize glare and reflections. On bright days, this filter has become my favorite accessory. Along with the filter, you also get a lens cap, storage case, lanyard and microfiber lens cleaning cloth, all of which are much appreciated. Overall, this filter set offers great value for money and is a top-notch offering from K&F Concept.

I like my K&F Concept 58mm Magnetic Circular Polarizer Lens Filter. It fits well magnetically or screwed on. The quality of the filter is very good. It also comes with a lens cap safely stored to protect it when not in use.

Actually, you don't need a UV filter anymore these days, because camera manufacturers have been installing such a filter in front of the sensor for many years. However, there is one application in which a magnetic filter is useful and practical: If you have already fitted your lens(es) with a magnetic filter adapter, then a lens hood will generally no longer fit. However, this offers the best protection against, for example, accidental bumping. Without a gel, the front lens is exposed. And that's where this UV filter comes in, but a neutral glass filter would have done just as well. Now, filters generally have a negative effect on image quality, the only question is how much. This filter is very cheap at around 20 euros (67 mm) and I think the quality is OK. Flares (backlight that leads to unwanted reflections within the lens) seem to be much stronger to me, but it depends a lot on the lens anyway and a lens hood is always better than a better filter, unless you can avoid flares or even use them deliberately. There are two aspects of handling that bother me: the filter box is designed for much larger filters (I estimate 82 mm) and does not have a suitable recess for this 67 mm filter. This means that not only is the box much larger than necessary, but the filter also rattles around in it during transport. Solution: use your own filter bag, in the right size. The magnetic holding force between the filter and the lens adapter is weaker than that between the filter and the front cover. If you take the front cover off, this UV filter is always attached to it. For 20 euros, this filter is extremely cheap, technically/optically OK, but in practice it does show some small weaknesses. The fact that you basically get protection that can be removed quickly and that you don't have to spend a long time screwing on makes the filter still worth recommending.

I recently purchased a lens with a 58mm thread size, so I was out looking for a UV filter to protect my investment. One of the first things I learned about photography is that it is always cheaper to replace a filter than a lens due to an accidental scratch or abrasion. When you are out and about, you also don’t have to be paranoid about wiping off the surface of a filter, which often happens when you do not have the time to do it properly with a blower or a cleaning cloth.
I have K&F filters on almost all of my lenses and have not seen any noticeable issues in using them. This package included a cleaning cloth, lens cap and a cap lanyard. Personally, I like to keep my OEM lens caps safe at home. If you sell a lens, it will always look a bit more attractive to most buyers with the original cap be it Canon, Nikon, Sony, etc.
The lanyard is orange colored and very well made compared to others I have. Regarding the cleaning cloth, you can never have too many of these on hand. All of this was packaged in a clear hard plastic case which could be used for other items.
For the price, I consider this to be a very good package to buy.

I'm actually a fan of K&F products, but this time I'm disappointed. My lens hood doesn't fit the lens when I've screwed on this UV filter. That bothers me so much because I want to reduce flares with a lens hood, especially when there's additional glass in front of the lens. My older UV filter from Hama, which I always used to attach to the Sony 28/2.0, proves that this can basically work. But it's not magnetic and so can't magnetically hold other filters. That's what I found so appealing about this one from K&F. Apart from that, you get a UV filter of the usual high quality at a reasonable price. If you don't use the lens hood anyway, you can certainly buy this one without hesitation. I'll probably only use it rarely.

This UV filter from K&F is basically good and does what it's supposed to. The glass is very clear - I was confused at first because I couldn't even see it in the filter frame. There is no impairment of the image quality and the filter is therefore ideal as additional protection for the lens. Although the magnetic mount is actually practical: due to the slightly wider edge, I can't use the lens hood at the same time (at least with a Fujinon 18-55mm).