K&F CONCEPT 37mm UV Filter Ultraviolet Lens Protection with Cleaning Cloth

Look, I’m going to be completely honest: I didn’t buy this 82mm K&F Nano-K filter because I was worried about atmospheric haze ruining my shots. I bought it because I am clumsy, I shoot outdoors a lot, and the thought of a stray branch or a gritty gust of wind scratching my front lens element gives me anxiety. This little ring of glass is essentially a bodyguard for my lens, and so far, it’s doing a stellar job! Here’s why it’s earned a permanent spot on my gear: Invisible Protection: The biggest fear with cheap UV filters is that they’ll turn your crisp images into a muddy, flared-out mess. Happy to report that this Nano-K glass is practically invisible. I’ve pixel-peeped my shots and I can’t see any loss of sharpness or weird colour casts. Contrast stays great, even when shooting towards the light. I have the more expensive X series and to be honest I can’t tell the difference. Smooth Operator: The aluminum frame is nice and slim (no ugly vignetting/dark corners on my wider shots) and the threads are pretty smooth. It screwed onto my 82mm Tamron lens perfectly without that horrible metal-grating-on-metal feeling you get with some ultra-budget filters. Cleaning is actually... easy? Usually, budget glass loves to smear grease around like a toddler with a crayon. Whatever coating K&F used on this Nano-K version actually works. Rain droplets bead up and roll right off, and dust wipes away with a quick blast of a blower and a microfibre cloth. Is it a £100 professional cinema filter? No. But for a highly affordable piece of glass that lets me not worry about scratches, damage or keeping my lens cap glued on every single second, it’s an absolute bargain. N.B. If I was using it on a £6000 lens I would probably splash out for the X series, but on a £900 one it’s more than adequate. Save yourself a future heartbreak and just buy one. Your lens will thank you!

Good value uv filter , used for lens protection mainly Particularly like the slim profile bezel, no obvious optical issues so far .

Fits easily and the lens cap fits nicely still over it. It feels better having protection over the lens. A bit expensive for what it is but it’s cheaper than a new lens if that ever got scratched so worth it overall.

The K&F CONCEPT 40.5mm Ultra Slim UV Filter is a really solid budget-friendly option if you just want simple lens protection without overthinking it. It’s very easy to use since it just screws straight onto the front of your lens, and the ultra slim design means it sits nicely without getting in the way or causing vignetting on wider shots. You can pretty much leave it on all the time and forget about it, which is exactly what you want from a UV filter. Where it really does its job is protecting your camera lens. It adds a layer against scratches, dust, fingerprints, and general wear, which is especially useful if you’re shooting outdoors or travelling. The glass is clear enough that it doesn’t noticeably affect image quality in most situations, which is always a concern with cheaper filters. It’s simple, reliable, and good value. It’s not the absolute highest-end filter out there, but for everyday use and peace of mind, it does exactly what you need.

As advertised, fits my zoom lens (12-60 micro 4/3) and with decent padding and robust external material represents good value for money

These UV filters add great protection for expensive lenses and let's face it I think 90% of us at least are buying them for this reason, K&F also make really decent neutral density and polarising filters too which do a great job in bright sunlight or allow one to see fish swimming in a river or lake (or human waste courtesy of our water companies in the UK). I highly recommend K&F they're very reasonably priced and just as good as other offerings costing more than twice the price

Perfect fit

Quality product good price arrived quickly

Acquistata la versione 49mm, a 9.99 euro, essenzialmente per proteggere la parte frontale della lente. Mi chiedo se questo tipo di filtri abbia anche un secondo scopo riducendo gli UV. Lo ho montato su una canon EOS M200 + lente EF-M 15-45, quella base del kit. Si avvita facilmente, non ha gioco e non si svita da solo nella mia lente. Consente l'uso del tappo originale della macchina, forse risulta anche più comodo l'aggancio. Non da fastidio al paraluce a tulipano sia messo per fotografare che girato per "riporlo". Non ho notato differenze nelle immagini. In un caso di controluce mi è sembrato che colpito da un raggio di luce diretto producesse maggiore alone. In ogni caso allego due immagini; la prima è con il filtro (1/160 f/4) la seconda senza (1/160 f/4). Tenete presente che nel secondo scatto non sono stato in grado di farmi colpire direttamente da un raggio di sole come il precedente e, soprattutto, che anche come fotografo sono un cane. Conclusione, sembra non disturbare e fare il suo lavoro. Sicuramente preserva la lente da ditate, polveri e graffi fortuiti. Non consiglio di provare a dare delle martellate poi vedete voi ma non lamentatevi con me.

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

Lo compré principalmente para proteger el objetivo y estoy muy satisfecho con el resultado. El filtro está fabricado en vidrio óptico y se nota desde el primer momento que tiene una buena calidad de construcción. El montaje en el objetivo es sencillo y la rosca encaja perfectamente. Una vez colocado, prácticamente no se nota que está ahí y no he apreciado pérdida de nitidez ni cambios significativos en los colores de las fotografías. El revestimiento Nano también es un punto a favor, ya que facilita la limpieza y ayuda a evitar que las pequeñas manchas o huellas se queden demasiado marcadas. Por el precio que tiene, me parece una inversión muy recomendable para mantener el cristal frontal del objetivo protegido frente a polvo, huellas o pequeños roces. En resumen: buena construcción, fácil de instalar y cumple perfectamente su función. Muy recomendable.

Great value UV filter for protection I bought this 58mm UV filter for my Nikon 70-300mm lens and it fits perfectly. The glass is clear, no color cast, and it does the job of protecting the front element from dust and fingerprints. The frame is slim so no vignetting even at 70mm. For $17.99 it’s a solid budget option. Only removing it for night shots and backlit scenes to avoid extra flare, but for general use it’s great.