K&F CONCEPT 52mm MCUV Lens Protection Filter 18 Multi-Coated Camera Lens UV Filter Ultra Slim with Cleaning Cloth (K-Series)

Easy to use, perfect fit. Essential lens protection for your lens. I have a Canon SLR camera and I am always using UV filter to protect the lens. Recently, my camera was on tripod and the tripod tipped. The UV filter broke, the lens was fine. Perfect self-sacrifice for the filter to protect the lens.

Originally ordered these as a replacement sacrificial lense for my RNVG dual night vision goggles that utilize the PVS-14 style lenses. They screwed on perfectly and I didn't notice any additional blurriness. Cheap and effective. Could be worth stockpiling these if night vision training is your thing and you consistently bump your nods into things. Time will tell how durable it is but it feels like the glass and protects against direct lense scratches so it's durable enough for me.

Seems to be high quality. I put this on my spotting scope as a lens protector. I see no image issues. Decent price, came shipped in a good protective case and included a cleaning cloth.

This 82mm MCUV filter from K&F Concept is a great addition to my lens setup. It fits perfectly, screws on smoothly, and provides solid protection without affecting image quality. The glass is clear with no noticeable color cast or distortion, and it helps reduce UV haze when shooting outdoors. It’s lightweight but well-built, and I feel much more confident knowing my lens is protected from scratches and dust. Great value and performance—highly recommended!

I think the K+F Concept Nano-K is a good value for casual shooters wanting protection from the elements, pets and fingers. Not much image degradation compared to B+W or Hoya HMC and (with microfiber cloth) sea spray and sand are easily wiped off. However, the knurled "non-slip" ribbing on the filter ring prevents some of my lens hoods from attaching to the camera. The HB-6 for the Nikon 24-70, for example. Not a huge deal but have never experienced this in 40 years of photography. And I want to relate an experience which does NOT affect the rating but is going to make me reconsider using K+F filters. Today, I dropped a lens onto concrete from chest height. It's been a couple decades but I've done this a number of times. Previously, every time the filter hits the ground first, the filter shatters and the ring deformed. B+W, Heliopan, Hoya, Tiffen behaved similarly. Today, the K+F filter (pictured) did not shatter nor become deformed and I believe it transmitted more force of impact to the lens than if it had shattered. The focus ring of the AF-D lens is so stiff it will no longer autofocus.

Got it for my EF-S 55–250mm f/4–5.6 IS. Worth It. Protection: I shoot outside a lot- car shows, dirt, pollen, flying bugs with attitude, and this thing’s been a great first line of defense. I'd rather clean or replace a filter than risk scratching actual glass. Bonus: no anxiety wiping it with a t-shirt if I have to. Optical Clarity: No weird color cast, no ghosting, and it hasn’t affected sharpness at all—even at 250mm. I was worried it might dull the image, but nope. Photos still come out crisp and contrasty. (note I have to stop this lens down to like f8 anyway as its pretty soft at 250) Build Quality: It’s super slim, threads on smoothly, and doesn’t feel like the bargain bin trash you sometimes get with cheap filters. Doesn’t get stuck, doesn’t rattle, and doesn’t look like a toy. ⚠️ Important Note: (I used an EMOJI, so you better read this!!!) CLEAN YOUR LENS WELL BEFORE PUTTING THIS ON. It threads on fine, but trust me, you don’t want to keep taking it off and on. Put it on once and leave it. Any dust, fingerprint, or oil on the front element WILL show up in your shots like a nasty watermark you didn’t ask for. Treat it like applying a screen protector, clean, then cover and LEAVE IT ON. Bottom Line: If you’ve got the 55–250mm or any 58mm filter size lens, grab this. Cheap peace of mind, no image degradation, and it saves you from the heartbreak of scratched glass or sneeze damage mid-shoot.

I'm thoroughly impressed with the K&F Concept MCUV Lens Protection Filters. The build quality is exceptional, with a sturdy metal frame and scratch-resistant coating. The filter is ultra-slim, making it perfect for use with a variety of lenses. The Multi-Coated Glass Provides excellent protection for your lens while minimizing reflections and flare The Ultra-Slim Design Fits perfectly on most lenses, reducing vignetting and improving overall image quality. Scratch-Resistant Coating actually works. Easily cleanable leaving a streak free CLEAR image! This filter performs flawlessly, with no noticeable impact on image quality. It's perfect for protecting your lens from dust, moisture, and scratches. I've used it with my vintage Canon FD lenses AND my LUMIX PRO lenses! They are INVISIBLE to your sensor!!! Considering the price point, this filter is an absolute steal. It's an affordable way to protect your valuable camera lens without compromising on image quality. I now use these on ALL my lenses!

Got it to put on Nikor 50mm lens. Fit perfectly. Great filter for the price and not bulky. I have owned filters from this brand and haven’t had any issues. Easy to attach and durable.

ممتاز

Really nice filter..Took some shots at night and day and no flaring at all.Seen zero degradation of image quality.

Uso questo filtro sul Sigma 18-50mm f2.8 per Sony e funziona bene: si avvita facilmente, non rovina le foto e offre una buona protezione alla lente. Il vetro sembra solido, i riflessi sono contenuti e il panno in dotazione è utile anche se basico. Nel complesso un acquisto semplice ma valido.

Good quality

I've been using the K&F Concept K-Series 67mm MCUV Pro UV Filter on my lens for several months, and it has proven to be an outstanding addition to my photography gear. Build Quality: The filter boasts a slim design, making it lightweight and easy to handle. The build quality is robust, ensuring durability without adding significant weight to the lens. Optical Performance: The multi-coated lens effectively reduces ultraviolet light, which helps in minimizing haze and improving contrast in outdoor photography. I've noticed clearer skies and more vibrant colors in my images since using this filter. Ease of Use: Attaching and detaching the filter is straightforward, and it fits securely on my lens without any issues. The slim profile allows me to use lens caps without interference. Value for Money: Considering the quality and performance, this filter offers excellent value for money. It's a reliable choice for both amateur and professional photographers looking to protect their lenses and enhance image quality.