The title of this review pretty much says it all about the K&F Concept 52mm MCUV lens protection filter; even the name of the product indicates its most important function. This type of filter is primarily used to protect our expensive camera lenses, and K&F directly names its product as a “lens protection filter.” Therefore, this product appears to be well made and, when used, did not cause any aberrations, glare or ghosting in images taken with the filter, whether directly on the lens or in combination with other filters. It is very thin and has both an internal and external thread of 52mm. In comparison, the K&F UV filter is much thinner than the same type of filter sold by other manufacturers, with no noticeable difference in photo results. My only complaint is that, like many other K&F filters I've tried, attaching the K&F filter can be a bit tricky and produces a more noticeable "scratching" sound than other filters when screwed onto the mount . However, I did not find any negative results that could be attributed to this sound or its creation. All in all, I think the K&F Concept 52mm MCUV Lens Protection Filter is a product that should definitely be on your potential purchase list if you are looking for a UV protection filter. The competitive price and thin form factor, as well as the lack of obvious drawbacks, are clear pluses, which is why I rate this lens a solid 5-star product.

Comes with cloth, cap and wrist strap. The 52mm adapted perfectly to my lens. The filter is circular and allows you to vary the reflections to blur them or on the contrary to accentuate them. Darken the shot a bit to compensate with the camera settings.

I got this for several of the 52mm lenses I have. It threads on smoothly with no wobble and is made of nice, thick plastic.

One of these lenses is a 18-55mm zoom used on a Nikon DSLR with an APS-C format sensor. The manufacturer’s description says not to use this hood on any lens with a wider field of view than 25mm to avoid vignetting (darkening of the edges of the photo). The crop factor for Nikon APS-C sensors is 1.5x, so at 18mm this lens has a field of view comparable to 27mm on a full frame digital camera or a standard 35mm film camera which is usually used as the reference when describing the field of view of lenses attached to cameras which evolved from 35mm film cameras. Look it up to get a better idea of what I’m talking about if you don’t already know. I’m not that keen on it myself.

Anyway, 27mm is uncomfortably close to 25mm so I ran some test shots of an evenly lit yellowish blank wall with the Nikon to check for any vignetting. The camera viewfinder is not 100% accurate so I had to go with the actual pictures. I found no noticeable vignetting at 18mm as long as the hood was oriented with the two largest “petals” pretty close to 12 and 6 o’clock. I found that to achieve the no-vignette at this position, the hood needed to be screwed in all the way – meaning that the lock ring had to be all the way snugged up to the body of the hood. A partial rotation of the ring to secure the hood with the petals at the correct position was okay, but even a few full “backwards” rotations of the lock ring which prevented the hood being screwed down as far as possible started giving me some vignetting.

Even locked down to the right position to start off there’s a slight rotation of the front of the lens to achieve proper focusing (unless you have one of those expensive lenses that have internal focusing), but the movement is fairly minor and didn’t give me any trouble. You probably will have trouble, though, if you screw the hood onto a filter and then try to shoot at 18mm! If using a zoom lens you could cancel any vignette by just selecting a slightly longer focal length at which to shoot.

Apologies for going on, but the take-away is that you shouldn’t have vignette issues using this hood at 18mm on a APS-C format camera. Canon has a 1.6x crop factor which puts you even farther from the 25mm danger zone. If you have a full frame format digital or a 35mm film camera, you would have major issues at 18mm. So, then don’t use any focal length under the 25mm mentioned. Of course, if you are using a zoom lens, you can use it fine at focal lengths greater than 25mm.

I don’t need to penalize this hood by taking away stars as it seems to be well made and does its job very inexpensively.

I needed an additional 52mm UV filter for a Nikon DSLR lens. I discovered this K&F Concept filter was available on K&F CONCEPT, which is reasonably priced. K&F has increasingly developed a pretty solid reputation for producing quality photography equipment (e.g., tripods and heads) & various other accessory products.

I am very pleased with this filter. The filter arrived attractively boxed in a cardboard outer box, as well as an additional inside snap-closing plastic box. The "kit" included the filter, an extra 52mm lens cap, a short camera wrist lanyard & a micro lens cleaning cloth.

All items in the kit present as clean & there isn't a hint of dust or film coating on the filter, which indicates this product was manufactured & packaged in clean environment. I really like the knurling that is present on the outside circumference of the filter; this allows for better gripping/control while handling the extremely lightweight filter & attaching it to one's lens. The K&F filter screwed very easily onto the lens, indicating good machining of the filter's matte finish aluminum frame.

I highly recommend this attractively priced, well-made K&F Concept UV lens filter.

K&F Concept 52mm Circular Polarizer Filter with Lens Cap Cleaning Cloth Is well made and easy to use. Feels very durable but light weight. It looks good on my camera set up. It’s a great product for the money.

We got the 52mm filter and lens cap for my husband’s Canon M50 with a 200mm lens, and it fits perfectly.

It all feels very good quality, and he has had no issues with it.

Recommended!

"Every lens should be equipped with a high-quality UV filter for protection. This 52mm Nano-X circular polarizer filter and MC UV protection filter kit from K & F Concept has such a filter. The kit also includes a circular polarizer filter and 2 high-quality lens caps. The 52mm UV filter has found its permanent place in my Canon EF-M 55-200mm STM lens with image stabilization, and the circular polarizing filter will serve as a welcome extra for several other lenses so I don't have to play "switch filters" between them. The included lens caps are very nice, but I find that it sometimes takes a bit too long to remove them, and I prefer the clip-on style that can be removed instantly.
Both filters improve image quality by removing glare and haze, respectively."

This filter works perfectly for me and I am very happy with the results I got while using it. It is worth noting that the size of lens cap you need once it is fitted on your lens increases. I bought the 49mm and had to increase my lens cap size to 52mm to accommodate the larger thread size on the front. This wasn't a big deal though as I already had a 52mm lens cap lying around. There is a size chart on the company's website that tells you what size lens cap you need based on what size filter you buy. Hope that helps