77mm MCUV Lens Protection Filter Ultra Slim 18 Multi-Coating

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 flareThe 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 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.

Beautiful, well made and excellent fit and finish. A must for daily use on any lens to cut UV rays. An all around filter for constant use and lens protection.

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.

I own two of these K&F filters, one in 58mm and one 67mm. After about 6 months, I have found both of them to work quite well. The only issue that I can find is that with the 58mm, the threads are very tight when screwing it into the lens, making it very easy to cross-thread the filter. After several attempts, I was able to get it started properly and seat it all the way down, but I suspect that at least some of the complaints that the filter could not be removed were due to it having been cross-threaded. I did notice that installing the same filter onto different lenses results in different degrees of tightness, but overall it is a very tight-fitting when compared to my Hoya filter.I was curious about some of the reviews suggesting that the image quality is affected by their use, so I decided to do a quick test. Both pictures were taken using the same lens, but with and without the K&F filter (the one on the left is with the filter and the one on the right is without it). To my eye, there are some very slight contrast and color differences, but no differences that I can see with regard to sharpness. For a more objective opinion, I decided to ask Grok to analyze differences between the two, and this is what it produced:Left image (With Filter) vs. Right image (No Filter):1. ColorLeft (With Filter): Slightly warmer and more saturated overall. The green of the fruit has a richer, more vibrant lime-green tone with subtle yellowish highlights on the lit areas. The shadows and background foliage appear a bit deeper and more golden.Right (No Filter): Cooler and more neutral. The green is a bit flatter and more "true-to-life" but less vivid. It lacks the warmth and saturation boost seen on the left.Summary: The filter adds a noticeable warmth and saturation boost, making colors pop more.2. ContrastLeft (With Filter): Higher contrast. The highlights on the fruit's bumpy texture are brighter, and the shadows (especially under the fruit and in the background) are deeper. This gives the image more "pop" and dimensionality.Right (No Filter): Lower contrast. The image looks flatter, with more muted transitions between light and dark areas. The fruit doesn't stand out as strongly from the background.Summary: The filter increases contrast, enhancing depth and visual impact.3. SharpnessLeft (With Filter): Appears slightly sharper, particularly in the fine texture details of the fruit's skin (the bumps and pores are more defined) and the leaf edges.Right (No Filter): Very close in sharpness, but marginally softer overall. The fine surface details on the fruit are still visible but less crisp.Summary: The filter provides a subtle but noticeable sharpness boost, likely from optical effects or slight micro-contrast enhancement.Overall ImpressionThe left image (with the K&F filter) looks more vibrant, punchy, and professionally polished — warmer colors, stronger contrast, and crisper details. The right image (no filter) is more neutral and "straight out of camera," but flatter by comparison. This is typical of a good quality protective/UV or light-enhancement filter that adds a bit of warmth and clarity without heavy color shifts.The differences are moderate — not dramatic, but clear when viewed side-by-side.

Great lens protector. Using it for my Sony Zv e10 ii kit lens and it does the job perfectly. Does capture a bit of glare in the sun, but it’s not an issue at all. I highly recommend this lens cover.

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.

Great cheap product made out of metal that feels high-quality and durable while not adding glare to my photos like some complain about

I’m using this filter on a Fujifilm GFX 100S and have been very impressed with it. The filter is extremely thin, well made, and fits perfectly without causing any vignetting.Image quality remains excellent even on a high-resolution medium format sensor. I have not noticed any loss of sharpness, contrast, or color accuracy. Reflections are well controlled and the filter stays easy to clean.For the price, the build quality is surprisingly good. It provides reliable lens protection while remaining virtually invisible in everyday use.Highly recommended if you are looking for an affordable, slim UV filter that does not compromise image quality

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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.

Decent price for a good filter. Doesn’t seem to have any colour cast or flaws. Easy on/off. No brainer to protect your expensive lens.

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