This is a great protective filter for a pricey lens. I recently ordered a set of diffusion filters from K&F Concept for one of my lenses and I was very pleased with the quality of the glass as well as the workmanship. I didn't hesitate to order this UV filter when it became available. I ordered the 55 mm version for a standard Nikkor lens that came as part of a DSLR kit. Years ago, I used UV filters on the lenses I used on my film cameras, but I am just now starting to learn my way around digital cameras. I imagine this might be helpful in some outdoor shots, but I was primarily interested in just protecting my lens. This filter is thin, light and attaches to my lens very easily. The optical quality of the Japanese-made AGC glass is very high. My images are sharp and I cannot see any aberrations in the glass. I appreciate that this filter is designed to be shock-proof, water-resistant and especially scratch-resistant as it is surprisingly easy to damage a lens or get it wet or dirty (and they aren't all that easy to clean). It is nice to keep dust off of my lens, and not to have to worry so much about something happening to it so I can just think about taking pictures. I have several other lenses in various sizes that are also in need of protective filters, and I will certainly be looking for this brand. I also like the sturdy storage case this lens arrived in. The current price of $32.99 is a very reasonable cost and such a worthwhile purchase so I know my expensive lenses are protected.

UV filters are often used to block extended UV rays on the front of a lens and as a longtime photographer I remember the days when a UV filter was a must to protect your lenses over the long term. ...or at least that was the theory. Unfortunately, much of this belief persists to this day, and while the benefits of a UV filter that provides protection is still a hotly debated topic, UV filters offer a very good benefit...they keep dirt/grime/fingerprints back from the front Main element of a camera lens. In wedding photography, it's not uncommon for a child/baby/drunk adult to reach out and try to touch your lens...in fact, attempts to do so can produce some of the most incredible shots if the timing is right. However, the expense and difficulty of cleaning a good, high-end lens is often many times more difficult than simply cleaning a lens cover on the front...which is where UV filters usually come in...they do the job good job direct contact with the actual lens. I've used many different types of filters over my decades of photography, and among these, UV filters are probably the ones that offer the widest range of quality. This is the first K&F filter I've used and I've been using it on a Sigma ART lens for a week. I'm happy to say that this filter is a nice mid to high end UV protector. Unlike so many cheaper UV filters, this one doesn't seem to introduce any easily noticeable color shift or image distortion with the image. While I'm sure if I start pixeling and comparing this UV filter to a $200+ filter I could probably find a few glitches here and there. In fact, this filter is half the price of many of the other upper mid-range filters. ... and let's be honest. The primary goal of a UV filter is protection. A decent UV filter shouldn't noticeably alter your images. In this respect, this product does exactly what it is supposed to. One thing the K&F excels at, however, is the case in which the filter is packaged. The case is a hard cylindrical case that is easy to twist open. However, the nicer aspect of this filter is the fact that the housing has a silicone ring with grooves in it that keeps the filter in place while it is in the housing. This is something many other manufacturers do NOT (including a large number of more high-end filter manufacturers). While yes, this is the first real experience with a K&F filter, for me...after looking at the attention to detail they have done, I am now in the market for a few others of theirs :)

This helped with UV protection during the day and also helped prevent scratches on my camera lens. It's very thin and you hardly notice it's on. I can also put my lens cover on it so it doesn't get damaged. Worth the investment

Speaking of myths, just what do UV filters do?

Originally, UV filters, and their cousins, haze filters, were placed in front of the lens to mollify the effects of UV light on panchromatic and color film, given its proximity to blue on the light spectrum. This is not an issue in digital photography.

Some (here) say a UV filter will prevent UV degradation of the lens or its coatings. Interesting but I have never heard this claim and could not find any knowledgeable photographer making it via a web search.

Some say a UV filter can protect a lens from breaking if dropped. Most photographers/lens manufacturers agree that today’s lenses are far more sturdy than a UV filter, which very well may break if the lens is dropped.

Some say a UV filter may cause flare or ghosting (especially in high contrasting scenes) in the final image. Most photographers report that such an occurrence, if it happens, is hardly noticeable.

For all intent and purposes in digital photography, UV filters serve one purpose: prevent scratches and foreign matter from coming into contact with the front element of the lens. The point being that dust, sand, saliva, sweat, rain, snow, salt spray, et al., are easier to clean from a filter than a lens, while saving the lens from relentless, potentially abrasive cleaning regimes.

I obtained this filter to test for chromatic aberrations, flare, and ghosting – while using it for lens protection. I did not notice any significant effects. If I wish to be picky, very high contrast scenes (bright lights on a dimly lit street) may evidence a bit of ghosting. The filter is well-made, sturdy, and has no visible flaws in the glass or coatings.

Without meaning to demean anyone, I suspect that the average photographer would not recognize any ill effects in their images due to this filter. I obtained the 72 mm which I recommend without reservations.

This is a simple UV filter. It seems to protect the camera sensor well from UV rays and does not affect the image quality

This is a great protection filter for an expensive lens. I recently ordered a set of diffusion filters from K&F Concept for one of my lenses and was very happy with the quality of the glass and the workmanship. I didn't hesitate to order this UV filter when it became available. I ordered the 55mm version for a standard Nikkor lens that was part of a DSLR kit. Years ago I used UV filters on my film camera lenses, but I'm just beginning to learn how to use digital cameras. I imagine this might help with some outdoor shots, but I was primarily interested in just protecting my lens. This filter is thin, light weight and very easy to attach to my lens. The optical quality of the AGC glass made in Japan is very high. My images are sharp and I can't see any aberrations in the glass. I appreciate that this filter is shock resistant, water resistant, and especially scratch resistant, as it's surprisingly easy to damage a lens or get it wet or dirty (and they're not that easy to clean). It's nice to keep dust off my lens and not have to worry so much about something happening to it so all I can think about is shooting. I have several other lenses of different sizes that also need protection filters and I will certainly look for this brand. I also like the sturdy storage box that this lens came in. The current price of $32.99 is a very reasonable price and such a worthwhile purchase letting me know my expensive lenses are protected. water-resistant and particularly scratch-resistant, as it's surprisingly easy to damage a lens or get it wet or dirty (and they're not that easy to clean). It's nice to keep dust off my lens and not have to worry so much about something happening to it so all I can think about is shooting. I have several other lenses of different sizes that also need protection filters and I will certainly look for this brand. I also like the sturdy storage box that this lens came in. The current price of $32.99 is a very reasonable price and such a worthwhile purchase letting me know my expensive lenses are protected. water-resistant and particularly scratch-resistant, as it's surprisingly easy to damage a lens or get it wet or dirty (and they're not that easy to clean). It's nice to keep dust off my lens and not have to worry so much about something happening to it so all I can think about is shooting. I have several other lenses of different sizes that also need protection filters and I will certainly look for this brand. I also like the sturdy storage box that this lens came in. The current price of $32.99 is a very reasonable price and such a worthwhile purchase letting me know my expensive lenses are protected. I have several other lenses of different sizes that also need protection filters and I will certainly look for this brand. I also like the sturdy storage box that this lens came in. The current price of $32.99 is a very reasonable price and such a worthwhile purchase letting me know my expensive lenses are protected. I have several other lenses of different sizes that also need protection filters and I will certainly look for this brand. I also like the sturdy storage box that this lens came in. The current price of $32.99 is a very reasonable price and such a worthwhile purchase letting me know my expensive lenses are protected.

In modern DSLR cameras, there is a huge argument whether UV Filters provide any benefit. I’m in the camp that says there are definite benefits. First, there are arguments that the UV filter can protect the sensor in your camera from long term deterioration caused by UV exposure. Second, a high-quality filter provides a layer of protection to the front of your camera lens. I was taking pictures at a very windy venue, and a door was caught by the wind and smacked the front of my lens before I could catch it. I was lucky that the hit wasn’t worse, but the lens did receive a small chip to the front plastic. This filter is made out of metal, screwed right on, and will protect the front of the lens from this kind of damage in the future. The lens could still get damaged in other ways, but it is a layer of protection from these unexpected bumps. In the future, if the lens gets bumped and the filter gets destroyed, I’ll be grateful that the filter took the hit instead of the lens. The filter is much cheaper to replace!

UV filters are much more useful for film because UV radiation affects film much more. However, this is still useful for protection, both from UV rays if you shoot a lot, and from dust and other particles. In most cases there is almost no visible difference between the on and off lens. So if you want a little more protection for your lens, this is perfect for you.

This has helped with UV protection during the day and has also helped prevent scratches to my camera lens. It is very slim and you can barely tell that its on. I am also able to put my lens cover on it so that it does not get damaged. Worth the investment

K&F makes solid filters, and this UV filter is no different. My 24-70 has been naked for some time and I decided it was time to get it a protective UV filter as I've brought it back into my rotation of travel lenses, so I ordered a matching 77 mm filter. The K&F filter surprised me when I first unboxed it. First, the case is fantastic. It's a hard-shell smoky-transparent plastic case that is secured with 4 tabs and a short rotation to lock and unlock it. It's a large filter case because the same case accommodates 82 mm filters, but it will also accommodate smaller filters down to 43 mm. And the filters won't slide around. But how? Inside the case are two conical sections of silicone, a small one with 2 ridges and a large one with 10. The large one has numbers next to each ridge indicating the size it fits (43, 46, 49, 52, 55, 58, 62, 67, 72, 77, 82). The small one with 2 ridges is meant to hold the opposite end of the filter and stabilizes it. So as long as your filter is one of those listed sizes, it should fit in this case and is held securely in place due to the silicone ridges. Now, it's held my single-layer filters without issues, but it doesn't accommodate my variable ND filters or filters with rotating handles/extensions that jut out.

The filter itself is very well constructed. The aluminum body has two sections of thick knurling built in so it's easy to grip the filter for installing and uninstalling. The filter itself doesn't noticeably impact my image quality on my 24-70 compared to without the filter when I examine an image up to 2x in Lightroom, and I don't notice a significant color cast either. For me, the K&F UV filter is well-constructed and good to use.