The item received met my basic expectations. The glass filter (not plastic) is coated on both sides for anti-reflection, which is reflected in the green reflections. The filter frame was finely and precisely machined using CNC machines; it was easy to screw onto a lens. When I examine this K&F filter side by side with a much more expensive Hoya Fusion UV filter that I also use, I actually notice some differences. In particular, the green-tinted reflections of this K&F filter are more noticeable than the weaker reflections of the Japanese-made Hoya filter (which claims 99.8% transmittance). That's to be expected from the much more expensive Hoya, and it's also why I use it for a telephoto lens that I often use outdoors. However, I don't need the Hoya for every lens I own. I find this K&F filter pretty good enough for my less frequently used lenses and for most situations. (And if the situation is particularly prone to ghosting, for example, I know enough to simply remove the filter in that particular situation.) (I also liked that the included cleaning cloth came in factory-sealed packaging, just like wet eyeglass wipes . This gives me a little more confidence that the cleaning cloth hasn't been contaminated with tiny sand that could cause scratches. I personally don't use this type of cleaning cloth carelessly on filters and lenses, but it's a nice touch.) LIKES: - Reasonable price - Precise CNC machined filter frame - Anti-reflective coatings on filter surfaces, good enough for most normal situations. I like the balance between good enough quality and reasonable price that I find with this K&F Concept UV filter. It is mainly used to protect the lens from sand and dust. That's why I give this filter 5 stars. (Some filters on Amazon are now more expensive than a brand camera *lens* they are used on. That's not a reflection of quality, but 99% of marketing. Crazy.)

What can I say? The main requirement for a UV filter is that it does not affect image quality. After screwing it onto my compact camera, the photos look the same, and I can still put my lens cap on or stack other filters on top despite the thin form factor. It is great! The packaging was great too. The filter came in a hard case for storage, although I plan to just leave it on my camera lens for protection. If it gets scratched, don't worry — I'll just replace it! I like that it came with a large microfiber cloth for cleaning. It was very useful to clean both sides of this filter and camera lens before attaching it.

I immediately put it on a brand new lens and it fit well and I didn't see any distortion or lack of quality in my images.

have a few Sigma Art lenses that require a large 82mm filter, so I wanted something that I could only use in a harsh environment to protect these expensive lenses. Something of good optical quality but not very expensive to replace if necessary and these conditions will probably make it necessary. I was so impressed with initial test shots I took under various lighting conditions that I won't hesitate to use this filter if the conditions require it. I attribute the optical quality to the 18 layers of multi-coating. This isn't my first filter from K&F Concept, so I wasn't surprised at all. However, I am surprised at the retail price for a filter of this quality. While the widest lens I'll use with this filter is 40mm, the thin frame should allow it to be used at much shorter focal lengths without vignetting. Taking into account the current retail price, five stars for excellent quality and value for money from a trusted brand.

The glass in this filter is very thin. I haven't had a chance to test whether it holds up to being banged around or not. I wouldn't use this filter in my bag without a lens cap, but I know it will protect against minor abrasions, dirt, and scratches. I like the knurled edge that helps me grip it and remove it from my camera with the deeply built-in lens hood. So far no noticeable deterioration in the quality of additional refractions!

This is a very nice high quality protective filter, it is lightweight, has nice little handles on the edges and appears to be well made with good quality control. Unlike some other filters I have purchased that have had blemishes or imperfections in the glass, this one has no such defects. It was well packaged, perfectly clean and easily clipped onto my lens. As a bonus, a small but very useful microfiber cleaning cloth was included which looks better than some others that were provided FREE with other purchases. This cloth works great. I actually used it on my glasses and it didn't leave any stains. Overall I think this is a good choice, if you are looking for a simple but well made filter that will mainly protect your lens from dirt and damage then this is a must have.

I needed an ultra-thin UV filter for my wide angle lens and this filter works great! I was still able to screw in the lens hood and not get any vignette in the corners. This filter also seems to alleviate some of the glare I experienced. The surface of the filter is super clear and doesn't interfere with my camera's autofocus. We recommend.

I ordered this filter for my Canon M50 Mark II lens and it fits like a glove. The material of the filter is metal and robust. The coating on the lens ensures more realistic colors. I recommend it as an addition to your camera equipment.

This filter fits my Sony lens perfectly. If you don't have a UV filter, this is just the thing and not only filters out UV rays but also protects your lens.

I wanted to protect my Fuji 35mm f2 in a cost-effective way and this filter fits the bill. It's easy to turn on and off and doesn't affect the image at all. The clarity is great, it's easy to clean and gives me peace of mind. I can definitely recommend it.