This is the second time I am using a UV filter and the reason I bought it was for my upcoming trip to Bali where I am planning a long photo shoot. Being in the wilderness and in a country with strong sun rays, I figured buying a new UV filter to protect my lens would be best. Well this is a K&F product as is my ND filter and tripod which I recently bought because that's how I am and I like to buy a lot from one company. It came very well packaged and feels like a really good quality and it fits perfectly. I am very happy with the product and look forward to using and abusing it.

Great price, I got it for the lens protector. The thickness is also good.

A dirty filter arrived, it wasn't just dust and after 10 minutes of cleaning with a special liquid and a lot of attention, it went away. I contacted the manufacturer and after a few days he replied and sent me a new filter to replace, recommended!

Delivered in a plastic box that protects it well, the filter looks very nice and the polarization works well. I will also use it mounted on the lens to protect it. Useful and high quality

This is not my first time purchase of this K&F Concept filter. Perfect for on the lens protection and it does not affect picture quality either. Love its ridges design around the rim of the filter for ease of removal. Take time to clean the lens first before you apply this filter on top. Some filters lose its tightness and the glass wiggles after a year or so but not this brand. Well made, good quality and design. Well worth the money I paid.

bought this lens filter because I was looking for a filter no thicker than 3mm that would fit in a new Haoge lens hood (which cannot take thick filters) for my X100V to protect the lens and the camera to make weatherproof. If you don't know anything about the new X100V, you need a filter that is weatherproof. After some searching for a 3mm thick filter I found this filter from K&F Concepts on Amazon. I was skeptical that it would only cost £5.99 and there have been some complaints of a color cast. However, I thought I'd give it up for the price. The box it arrived in isn't the best, but it did its job and the filter arrived unmarked. I held it over a white surface and I could actually see a slight shade of brown. However, I don't see any color cast in the pictures. If you hold the filter up to the light you can see a purple reflection. I have tried to show this in the pictures but there is some fading. It looks very similar to the anti-reflective coating you have on glasses - I don't mind that. Overall I'm amazed, it's actually a really good filter with good spread and no obvious ghosting — I shot in the sun yesterday and it worked really well. I've bought far more expensive filters in the past that weren't as good. Recommended — consider buying a second one as a spare!

Admittedly, this filter comes at a very reasonable price. But on the other hand, it does its job perfectly. It protects the sensor from UV rays that burn the colors in the photos. You can see the result in my photos without retouching. I am completely satisfied. The blue sky isn't gray anymore, that's great.

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.

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.

I've bought photo material from K&F in the past and have never had any problems. I bought this UV filter for my new 82mm diameter Sigma mainly to protect the lenses from dust and scratches. Easy to assemble, well built, it comes well sealed in a box. It is worth the price paid.