bought 4 filters: 3 of 67mm and 1 of 77mm. They came in a nice packaging (carton + a polypropylene box) Visually they all look good. To my eyes there is no visible drop in image quality with this filter compared to. The product looks good. I would give this product 5 stars if I didn't have major complaints about the mechanical part. The 77mm is almost perfect mechanically - a good match for the lenses I've tested it with. The first 67mm filter didn't fit my Canon 24-105mm F4 lens as well as my Fujifilm 18-135mm - it was impossible to screw it in due to the friction - just couldn't get into the thread. The second 67mm was almost perfect - a bit narrower than the Hoya HMC filter but perfectly acceptable. The third 67mm filter is narrower than the second, but I was able to put it on. I have decided to return the first 67mm filter and will keep the other 3 (2 x 67mm and 1x 77mm). Still, my thought is - was it worth the experimentation? I don't know it. The basic Hoya HMC is twice the price but is mechanically perfect. From another perspective, you could buy two of these and keep the one that fits...

I bought this filter to protect my camera lens from dust and the elements. It fits my lens perfectly and comes in a protective plastic case. Very happy with the extra protection this filter provides for my camera lens.

Great protective lens. Really easy to install. Simply screw to the front of my EF-M 15-45mm f/3.5-6.3 IS STM lens. So much cheaper than buying one at the camera store. I don't have to worry as much about scratching my lens now. Didn't notice any difference in picture quality. The lens cap also still fits perfectly over it.

The UV filter is intended to protect a very old lens from the last century from scratches caused by sand, etc. A cool side effect is that the object now looks a bit more modern and open-glazed from the front :-)

Manufactured by a well known brand in the photographic industry, this filter is extremely easy to fit provided you buy the correct size (all lenses require a different size filter). Above all, this special filter variant helps to avoid scratches or annoying little fingers smearing the lens front element. K&F Concept is certainly among the top brands and should definitely be a worthy contender in all the books in my opinion.

It removed reflections and got a good rich color with no excess blue. The only problem is that the flower aperture lens hood causes vignettes when the filter is on!

High quality filter No distortion in my photos, which was not the case with the cheap filters tried before. I can just recommend her. Mikaël

For my Panasonic Lumix G lenses, I needed two "protective filters" so that rain and fingerprints can't damage the front lenses. There are different opinions on the net about the effect of UV filters, so I don't want to say anything more about it, but there is a blue-tinted coating on the K&F Concept Pro UV filter, the delivery condition is perfect and the packaging is (especially in view of the the price) can almost be described as luxurious. A first check does not reveal any adverse effects on the image quality, and the slim design means there are no shadows on the 12mm lens. Lens caps continue to fit securely, and the lens hood also fits the lens either way. I see the handy "teeth" on the outer edge of the frame as a big advantage - finally someone has thought along! Especially with the "slim" filters, it is sometimes rather tedious to get them off again after they have been screwed "safely". There are even tools that make this removal possible in the first place. But that's a thing of the past here, with this practical ribbing on the edge it's no longer a problem. At that price you can also have one or two of these filters with you in your camera bag and when the mud has splashed you can quickly put a clean one on - just perfect!

I ran various tests under different lighting conditions. I didn't notice any chromatic changes or flair. Slim, light and the workmanship looks good. I suggest always using a UV filter, especially to protect the lens from dust, water and scratches. Given the price and first impressions I think this product is really good value for money. Amazon flawless as always in 1 day delivery. Recommended.

I now have this amazing filter attached to my Olympus 60mm macro lens. The lens has no lens hood, a bad front cap and obviously no filter. This is now on board, along with a tidy front cap and third-party lens hood. 46mm is a little small and fiddly, but this one has a really good knurled ring that feels good in the hand. The thread is also very smooth and positive. The color balance is imperceptibly different, so it doesn't bother when shooting in well-lit close-ups. I love the improvement on this brilliant lens. ricky