This filter, if nothing else, helps keep my marriage on an even keel.

Now I won't rehash the old UV vs non-UV filter debate, but personally I don't really feel I need a UV filter on my DSLR lenses, and if I were the only person using my cameras I wouldn't bother at all as I'm extremely careful with all of my equipment. My wife, on the other hand...

Every time my wife takes out one of my cameras she treats it the same way she treats her sunglasses (lenses down on the dashboard of her car, jamming them in her pockets without a case or a second thought, smudges... just... everywhere. Oh, the humanity). When it comes to optical equipment she's history's greatest monster, a true menace to glass, but complaining about this to her will only ever end in a resentful argument.

So the solution? A high quality UV filter that will protect my lenses without reducing image quality. I've tried cheap filters in the past that I've ended up removing every time I take a shot because there's noticeable degradation in the results, but as this is a high quality filter I can't see any different in the final product with or without the filter. All I see is a clean, scratch- and fingerprint-free lens coming back to me safe and sound, and that's worth its weight in gold.

its hard to believe, but this is the first UV filter that I have had that actually makes my images BETTER! Most UV filters I have used over the years have had no real real visible effect on my images, and some have actually had negative effects because of poor quality. This filter is seriously amazing to me. It better be for the price, right?! Lol. its pretty expensive, but my images are actually coming out better with it, so I guess its worth it. Loving everything that is coming out of K&F Concepts lately. they have really stepped up their game.

67 mm fit just right on my Tamron. If you use an expensive lens, I recommend getting one of these to protect the glass.

Simple and clean is the way. I've learned that some cheaper alternatives add distortion or even discoloration to your photos and I don't want something that keeps me in the touch ups longer than I need to be. K&F has really done something simple and beautiful here. No distortion. No discoloration. And I can let this live on my lens to keep it safe and offer an extra line of defense in the unfortunate event that something happens. Quality of the build is nothing short of what you'd expect from K&F. Everything fits into place, screws on nicely, and the glass feels like it's secured into the metal housing. Definitely recommend even with the other massive amounts of competition out there.

This is a very nice filter but is a bit pricey compared to others from K&F. This is very thin and well made but doesnt offer as much as say their CPL filter does. This doesnt have the same grip and texture though thats probably due to the slimness. Of the higher end filters K&F makes I dont see the same aesthetics with this one. Optically this still performs well.

Got this to combo with my Canon R5 and the nice all-around RF 24-105 4 L lens. Fits nicely, and the lens cap is secured. Its UV protection is a nice feature to have. It keeps my pictures free and clear from those pesky UV rays when taking pictures outdoors, especially at the beach. My kitty ended up being the celebrity for the day while we were getting some sunshine hehe. Definitely worth getting, especially for anyone doing outdoor photography with the 70-200 2.8 L lens or 24-105 4 L lens (77 mm diameter).

This new line of pro grade filters from K&F Concept is truly fantastic.

These filters are super slim, with smooth threads that attach easily to my lens.

The UV filter doesn't have any color cast or produce any optical aberrations in general.

Just a crystal clear filter to keep your lens safe.

Comes with a padded case for safe storage.

I like UV filters that don’t get in the way and protect my expensive lenses. I would say this one qualifies. It is very slim and light and I don’t notice any abberations from the glass. No softness or mist or darkening. Just a crystal clear pass through. Perfect. I’ve had the best brands in the world over the years and this is on par with all of them, as it should be for the price. Easy to recommend.

This is the flagship series from K&F, so if you want the absolute best filter they produce, this is it.

It has a brass ring, which is slightly harder than aluminum. That makes it more resilient to binding on the threads, and makes the filter itself feel much nicer in the hand.

It has inner and outer threading, so I can stack filters, or clip my lens cap directly to it. That's great for me as I don't have to ever take this filter off. The main point of this filter for me is protection, and it's so much nicer having a high end piece of glass to put on my high end lens rather than most UV filters that are a piece of plastic.

I tried to make it produce flares, and I couldn't get any. This is the closest thing to a perfect UV filter that I've ever used.

I also really like the design of the case. It has a pull string on the side that'll push the filter out so I don't have to worry about getting fingerprints on it.

Overall a very high end filter.

Highly recommended.

I've heard varying opinions on the benefits of keeping a UV filter on the end of a camera lens. Many people say it's smart because if you drop the camera, replacing a filter is much cheaper than repairing an expensive lens. I've heard others (particularly professionals) say it doesn't make sense to buy an expensive lens and then put a cheap piece of glass in front of it that will just degrade the image. Those folks say keeping the hood on the lens will provide plenty of protection and if you have an expensive lens, it should be insured against damage anyway.

I've invested in some good Canon L-series lenses so I'm torn on the best approach. I've been leaning towards going without the UV filter, but I still want one if I'm somewhere like the beach and sand or dirt is blowing. So if I'm going to put another piece of glass on the lens, I want to make sure it's high quality and this filter meets that requirement. You can tell when a vendor has put a lot of thought and care into a product and it shows throughout the process. This filter comes in very nice packaging and they provide a high quality case that has a magnetic latch and a nifty ribbon on the side that you pull to extract the filter from the case. This keeps you from having to reach in and possibly get fingerprints on the filter. Great design!

As to the quality of the filter itself, I don't see any aberrations in the image when I use it. This line of filters from K&F aren't cheap so they won't be for everyone, but if you are taking your photography seriously, you should consider this product.