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

First impression - fits, well packaged and the lens cap from Sigma also holds on. Would I buy again. Image quality has not yet been tested, if necessary I will write something later.

As soon as you open the package you immediately understand that we are dealing with a quality product because it comes with a very nice rigid packaging and the UV filter is sealed separately inside, all for 8€, what can I do say more? I've been trying it on Lumix 25mm f/1.7 for a week and it's perfect: it doesn't change color and saturation at all, for me it's 5 super deserved stars.