It arrived completely dirty, but after a thorough cleaning it looks the same again. It's not dust, but it looks like production residue. Sent back immediately Update The seller kindly sent another copy which is perfect

My thoughts on the K&F Concept 72mm MCUV lens filter. This is a decent UV lens filter for the price. It has a multi-coated surface and a smooth thread that fits my lens and other filters well. Its thickness is comparable to my other brand UV filter. In terms of quality, it doesn't seem to affect the colors or sharpness of my photos. I compared some shots with and without a filter and they look almost identical. Maybe the filter makes the whites a little brighter, but that's hardly noticeable. I think it will do its job of protecting my lens without compromising image quality. I think the price would be hard to beat. Yes, I'm happy about this order! Thanks!

K&F really has a great line of filters like this. I tend to use this as a protective element on a lens, but I've noticed no discoloration, no reduction in image quality, and all at a great price. The filter is well made, screws in easily and didn't tighten at all.

This filter is well made and features a metal ring that is easy to hold and rotate. At first glance it is not a slim or flat ring, being thicker than my other slim filters. The concern relates to possible vignetting when using a wide angle lens. The product description claimed that it can be up to 14mm wide without vignetting. While I don't have an extra-wide lens that wide, I tested it on a 12mm fourth-third lens, which is equivalent to a 24mm full-frame wide-angle lens, and I saw no signs of vignetting and the ring is lighter hold and rotate than some ultra-thin filters. Overall, this filter offers good value for money and is cost effective to protect your lens.

recently purchased a new 40mm lens and I always use UV filters for general lens protection, especially since lenses are so expensive these days. I chose this 49mm UV filter from K&F Concept, which basically stays on my lens at all times unless I decide to use a different filter for an effect. I really like this filter, especially the grooved sides that make it easy to screw on or unscrew. I haven't noticed any adverse effects from having that extra piece of glass on the front of my lens, which is great! Seems to be really good quality. Oh, and I forgot to mention that they even included a microfiber cleaning cloth in the box!

bought this filter for protection against my very sensitive Sigma lens. The requirements I was looking for were therefore: excellent transparency, anti-reflective treatment, good anchoring thread. I put my choice on this filter, which mainly depends on the price. I have to say I was delighted with it. Excellent transparency, tight and stable thread without any backlash, aluminum frame body, and in addition, anti-reflective treatment is very effective, no vignetting phenomenon or chromatic aberration. Arrived in a practical case, closed in a plastic blister and well packaged. Very happy with the purchase even considering the price. I highly recommend it.

The clearest UV light I have ever used. When I first opened it I thought it was broken and there was no glass. It turned out that it was just insanely clear. Even my friend was so impressed that he ordered some for his lenses

got a new camera primarily for video work and I needed a nice UV filter at a “cheap” price. This filter has worked very well so far and I am very happy with the results. The filter is made of high quality AGC glass with multiple layers of nano-coatings to prevent reflections and glare. I also like the way they arranged the ridges around the outer diameter to make it easier to screw the filter onto the lens. The frame is very light and thin, which works very well with my wide angle lens. So far I have used this filter with my camera several times for some test videos and photos and have been very happy with the image quality. For the price, this is an excellent filter choice for any beginner to advanced videographer or photographer. It also comes with a nice lens cleaning cloth. I can only recommend this filter.

The title of this review pretty much says it all about the K&F Concept 52mm MCUV lens protection filter; even the name of the product indicates its most important function. This type of filter is primarily used to protect our expensive camera lenses, and K&F directly names its product as a “lens protection filter.” Therefore, this product appears to be well made and, when used, did not cause any aberrations, glare or ghosting in images taken with the filter, whether directly on the lens or in combination with other filters. It is very thin and has both an internal and external thread of 52mm. In comparison, the K&F UV filter is much thinner than the same type of filter sold by other manufacturers, with no noticeable difference in photo results. My only complaint is that, like many other K&F filters I've tried, attaching the K&F filter can be a bit tricky and produces a more noticeable "scratching" sound than other filters when screwed onto the mount . However, I did not find any negative results that could be attributed to this sound or its creation. All in all, I think the K&F Concept 52mm MCUV Lens Protection Filter is a product that should definitely be on your potential purchase list if you are looking for a UV protection filter. The competitive price and thin form factor, as well as the lack of obvious drawbacks, are clear pluses, which is why I rate this lens a solid 5-star product.

Arrived on time. Well done; very thin; light side knots make assembly and disassembly easier, more than acceptable anti-reflective treatment. Excellent value for money (not for professional use). I use it as a front lens protector for the lens. satisfied.