K&F CONCEPT 72mm Variable ND Filter ND2- ND400 High Definition Nano X Adjustable Fader Neutral Density Lens Filters(HD Nano-X version)

The K&F Concept 86mm Variable ND Filter (Nano-X Series) is an excellent addition to my gear. The build quality is solid, with a smooth adjustment ring that allows for precise control over light reduction without any noticeable color shift or vignetting. I’ve used it for both photography and video, and it performs beautifully in different lighting conditions. The nano-coating does a great job at reducing reflections and repelling dust and water, making it ideal for outdoor shoots. The markings on the filter are clear, and I appreciate that it doesn’t introduce the dreaded "X" pattern that some variable ND filters suffer from. Overall, this is a high-quality, reliable filter that delivers exactly as promised. If you're looking for a well-made, versatile ND filter, this is definitely one to consider!

Nice price and works very well Thank you

The variable ND filter does not work correctly. It darkens up to halfway, but turning further makes the image brighter instead of darker. The adjustment is inconsistent, so I believe it is faulty. Updated review after replacement I initially received a faulty filter, which is why my original review was negative. The variable ND did not behave correctly — it darkened up to a point, then became brighter instead of darker, making the adjustment inconsistent and unusable. However, after contacting customer support, I received a replacement, and I’m happy to say that the new filter works as expected. The exposure adjustment is now smooth and consistent across the range. There is a small usability point worth mentioning: the orange handle is positioned quite far from the indicator mark on the ring, which can make it slightly awkward to adjust on a larger lens without getting your hand in front of the lens. That said, this is more of a design inconvenience than a fault. Overall, I’m pleased with the replacement product and very happy with the customer service, which was responsive and helpful throughout.

Ideal for using on cameras when needing to record video at 1/50th second outdoors in bright sunlight. I use mine at weddings on my Sony A7Siii. No drop in video quality when using this product.

24mm @ ND400 didn’t show vignetting, just a huge X on the screen. Edit: KNF reached out and offered replacement/refund.

I bought the 49mm, sadly and maybe my cameras fault ! but when on my lens the min and max are at the bottom, so hard to read, and as no hard stops its easy to go into the dreaded X. If I threaded it on top of my uv then the min max showed up on top, not a deal breaker. I also bought the 49mm to keep in my small camera bag or in my pocket while out. The supplied case is huge and obviously its a one size fits all for 82mm and down so bear that in mind if the case size is important to you as you will need a smaller case if you have a small bag etc. I have stackable filters also I planned to replicate that by buying front and back 49mm covers, Sadly there is no front thread so the only way to keep it safe is in the huge 82mm case. Also not a problem for me, but as other people have said, obviously you cannot add a lens hood due to the lever. However I kept getting the X when passing ND400 mark ( that I cannot see, or feel) It also jammed on me twice so I couldn't move it. Returned for a refund. But despite its shortcomings for my use case, the glass itself was good quality and colour was good and images clean and crisp, Glass 10/10, usability 4/10

a great kit for the price. You may find the grey ND grad puts a slight colour cast on your photo but considering the price this is to be expected. Good quality ND grads cost hundreds of pounds! All of the filters are supplied in little plastic wallets with sealable flaps and the two carry cases supplied gives you the choice of taking just a small selection with you on shoots. The carry cases are nicely padded and made of tough material with mesh pockets on the inside to hold the filters. I doubt if I will use the other accessories that came with the kit but it is always nice to have spares for emergencies.

When used at a lower setting this produced a usable result. However, if you are presented with a situation where you had to use the filter at or near the maximum setting, the filter made the top right and bottom left of the image darker than the rest of the image, possibly fixable (Though difficult) on a still image, not really fixable on a film/video camera, where the light potentially changes second by second.

Ich habe mir dieses Set für meine neue Kamera (Canon EOS 700D) bestellt, um diese Filter im Urlaub zu verwenden. Das Set wird in einer einfachen braunen Verpackung verschickt. In dieser Verpackung befinden sich neben zwei schwarzen Taschen, in denen die einzelnen Filter gut und sicher verstaut werden, auch ein Deckel für das Objektiv, ein Halteseil für dieses Objektiv, eine Sonnenblende, sowie ein Mikrofasertuch, um die Filter zu reinigen. Die sechs Filter mit verschiedenen Verläufen werden in den gängigsten Farben geliefert und können auch ineinander verschraubt werden, sodass mehrere Farben auf einmal genutzt werden können. Darüber hinaus gibt es einen FD-Filter (natürliche Farben bei Kunstlicht), ein Polfilter (vermeidet Spiegelungen bei Wasser, etc.) und einen UV-Filter (blockiert UV-Licht, ist aber standardmäßig in den meisten digitalen Kameras schon vorhanden. Wird eher zum Schutz des Objektives genutzt) Alle Filter machen einen ordentlichen Eindruck; Verzerrungen sind nicht zu bemerken. Ich konnte auch keinerlei störende Einschlüsse finden. Die Filter, die verstellbar sind, lassen sich sehr geschmeidig verstellen/drehen. Der Objektivdeckel ist von robuster Bauart, die Arretierung klappt sehr gut. Am Deckel ist ein Band befestigt, mit dem sich der Deckel an der Kamera anbinden lässt; so wird verhindert, dass man ihn verlegt oder verliert. Alles in Allem ist dieses Set durchaus empfehlenswert. Vor allem bei diesem günstigen Preis kann man definitiv nichts falsch machen.

Ich war zuerst skeptisch, ob ein variabler ND-Filter in dieser Preisklasse wirklich was taugt. Aber der K&F Concept Nano-X hat mich positiv überrascht. Ich nutze ihn regelmäßig für Outdoor-Portraits und Videoaufnahmen (meist auf einem 82mm Sigma Art), und die Ergebnisse sind durchgehend sauber. Die Verarbeitung ist hochwertig, das Gewinde läuft weich, und der Filter lässt sich präzise einstellen, ohne dass sich der Farbton stark verändert. Kein sichtbares X-Muster, selbst bei ND400 – das war mir wichtig. Auch das Nano-Coating funktioniert gut: Wassertropfen, Staub und Fingerabdrücke lassen sich leicht entfernen, und es gibt kaum Reflexionen. Für den Preis wirklich top! kein Billig-Gadget, sondern ein solide Werkzeug. Ich würde ihn sofort wieder kaufen.

Good product and quality

Iniziamo col dire che per questa fascia di prezzo sicuramente un filtro variabile come questo svolge egregiamente il suo lavoro.nonostante sia abbastanza economico la resa fotografica è ottima e i colori sono anche molto più saturi rispetto a quanto mi sarei aspettato. Ci sono però dei lati negativi: spostandosi troppo oltre il livello massimo di 400 iniziano delle aberrazioni dell’immagine con delle ombre scure piuttosto importanti. Sarebbe stato ottimo se avessi avuto un inizio e un fine corsa, cosa attualmente mancante e che che appunto questi problemi di ombre scure quasi come se si trattasse di filtri polarizzati che si sovrappongono variando la quantità di luce che entra.nell’insieme un buon prodotto ma non professionale .

Cercavo un filtro ND variabile che mi permettesse di scattare con ogni condizione di luce. Il filtro è ben fatto ma presenta alti estremi la fastidiosa X . Da utilizzare negli intervalli intermedi