This is a very nice, inexpensive UV protection filter that is ultra thin. The slim design is exactly what I was looking for to protect my new Nikkor Z Series 24-120mm F4S 77mm. The slim 3mm depth eliminates vignetting in the wide angle end at 24mm. This filter has a multi-coated Nano-K glass that is designed to block and prevent the harmful effects of UV rays and glare. But more importantly, it protects the front of my new lens from dust, scratches, and possible impacts. It is a beautiful aluminum frame with a CNC machined edge on the other side that makes it easy to attach and remove the UV filter. The double threaded filter allows you to screw on a polarizing filter with ease. You also get a great matching lens cap with the K&F logo on the front of the cap. Awesome. You can always use an extra lens cap. Pricing for this cheap K&F Concept 77mm UV Protection Filter with Lens Cap is great value for money to protect your lens. It is well made, good quality glass was used, I have no issues with fit and threading, clarity or vignetting. This is another great product from K&F Concept.

This K&F Concept 77mm UV filter is a good accessory for your expensive camera lenses. It protects the front element from dust and scratches - or in my case flying mud at motocross events. The filter fits easily on to all my 77mm filter threaded lenses, and comes with a centre release K&F lens cap too. The lens cap also has a cap keeper if you want to avoid loosing the lens cap.

What I like about this filter is the thickness - or lack of it - as it's 3mm thick and that means it doesn't appear to darken the corners of the frame even on the wide-angle lenses I tried. I used it on my 16-35mm lens and there was no visible vignetting with this filter, and that does happen with thicker filters. The multi-coating must be rather good too as I did not see any evidence of lens flare even without a lens hood and the sun in the edge of the frame.

The UV blocking capabilities are not needed these days for digital cameras as the image sensors have a UV filter on them, so you won't see a change in the colour cast as described in the product info.

The filter comes in a good protective box, and also includes a microfibre cleaning cloth.

For the price this is a good value lens protection filter.

EVERY LENS SHOULD HAVE A UV FILTER FOR IMPACT PROTECTION. NOT THE BEST QUALITY BUT IT WORKS FOR A LENS I WILL ONLY USE 10-15 TIMES A YEAR. CANON R3

I did not buy this filter, I bought a size 77mm and for the price I am happy with it.

I only got these for the lens caps... I don't use the Keepers and already have an awkwardly sized bag full of new microfiber cloths as they seem to come with almost everything these days.

BUT since I have many lenses with smaller filter ring diameters that I size down to 77mm by using step-up rings so they share a common filter size, I often run into shooting with an unprotected 77mm filter on the end of mine rigs around.

This is exactly the quality you would want from them. Nothing fancy but perfectly functional and easy to use/operate with one hand without looking. The set of three is useful because I need at least that many and will definitely lose them over time in the black holes that are my pockets.

No complaints!

Best quality filter I had in a while,

77mm Magnetic Lens Filter Set. Good image quality and easy to change magnetic lens filters. It comes with a nice carrying case.

Best Tripod out there.