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.

I consider a CPL a "just in case" type filter, so I usually keep one in my bag but rarely use it. I think I like the reflections in a lot of cases, especially street photography. Maybe if I did more nature photography I would feel differently, so the fact that it has a magnetic ring is just perfect, so I can just put it on when I need it. It doesn't seem to like a lens cap, but I don't really use them either since I have a decent UV filter on there all the time and occasionally shoot with a lens hood. I use that on my 24-105mm S on my S5IIX. When I have that stacked on top of a UV filter I still don't see any vignette at the wide end, which is what I was hoping for.

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

ABSOLUTE BUY RECOMMENDATION!!!!!

Best quality filter I had in a while,

A filter of this type was missing from my kit. High quality of the lens and I can recover up to 9 stops to use for long exposure photos in the daytime. highly recommended.

Really good quality m42 lens adapter, made of metal. Perfect grafts.

Best Tripod out there.