K&F Concept 82mm MCUV Lens Protection Filter 18 Multi-Coated Camera Lens UV Filter Ultra Slim with Cleaning Cloth (K-Series)

All good! NICE product.

Great. Extremely good will recommend.

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

ممتاز

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.

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.

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.