67mm Variable ND2-ND400 ND Lens Filter (1-9 Stops) for Camera Lens Adjustable Neutral Density Filter with Microfiber Cleaning Cloth (B-Series)

I've been very impressed with this item for the past 2ish years. It's been a durable design at a very affordable price. It fulfills everything that it said it would and is easy to install and use. My images are still very clear and not cloudy as I use the filter. It makes a huge difference in my image using this filter to help reduce the harsh light coming into my camera. There is a slight vignette on the image, but not drastically noticeable. The only downside is the lack of gauges to keep track of what stop the filter is at. It requires you to watch the LCD screen as you turn the knob on the filter. Still happy with the product, but wish there were numbers on the filter. Overall, highly recommend, especially for the price!

This ND filter is a fantastic addition to my photography gear! Made from high-quality AGC optical glass with 8 multi-layer coatings, it really reduces reflections and glare, resulting in crystal-clear images. The 1-9 stop light adjustment is incredibly versatile, perfect for everything from bright daylight shots to more controlled, low-light scenes. The 360-degree rotation offers precise control over the light reduction, although, at the highest stops, I did notice a faint cross-pattern ("X" effect), which is typical for adjustable ND filters on some lenses. The filter itself is sleek and slim, just 7.4mm thick, and the CNC-patterned edge provides great grip, making it super easy to attach or adjust quickly. I love the anti-glare finish, which minimizes stray reflections, especially in challenging lighting. One thing to note: you’ll need a 55mm lens cap for this 52mm filter, but that’s easy to work around. Overall, it’s an impressive ND filter with outstanding performance and durability. Highly recommend it to anyone looking to improve their outdoor and landscape photography!

Phenomenal value for the quality you're getting. The function feels high quality at a low price point. easy to put on and off and comes in handy for all kinds of scenarios.

For the price this filter is well made and gets the job done. The step downs are perfect increments for my needs. My only issue is that at times I get 1-2 green flare spots on my image, especially in really bright sun. Tends to ruin the image unless able to use AI to remove. I have cleaned the lens and filter repeatedly so it definitely appears to be a filter issue. Also impossible to put the lens hood back on over the filter which might just offer enough shade to prevent the flares.

well built, solid construction. very slight color shifting with the filters but nothing too drastic. nice slow rotation speed which i appreciate so you can really dial it in. easy to use and fits perfectly.

A high quality variable ND filter lenses constructed from metal with excellent clarity and ND reduction. My only complaint is that I wish the indexing mark on the lens to show what your current setting is at was a bit more pronounced, but as is, it is more than functional.

Perfect fit on my sigma 24-70. Fantastic and durable build quality. The adjustments on the filter are smooth, precise, and FAST. Shooting outdoor video calls for quick adjustments - and this filter makes it happen. It’s light, and has a way of making it seem like it was a part of the original lens design. I get beautiful bokeh with my wide open aperture, and the filter preserves the stunning lens flares from the natural sunlight. For the price - the return off of this filter is undeniable. CINEMATIC.

Great cheap ND filter. I havent seen any of the distortion some people talk about. Nice and compact

The quality is great and it's exactly what I need for my zv-e10 kit lens.

It has got just about all your required settings. Ultimate & Optimum useful filter.

I ordered the 52mm filter because the 30mm f1.4 sigma lens for sony e-mount cameras has a 52mm thread but after lens arrived, I couldn't fit it on. But after-service support was pretty helpful in telling me this

Ottimo filtro a ND variabile io l'ho montato su un obiettivo Sigma per Lumix e per le interviste è perfetto non distorte assolutamente l'immagine

Ich war schon seit längerer Zeit auf der Suche nach einem eher günstigen ND-Filter für den seltenen Gebrauch. Natürlich findet man so einiges auf Amazon, allerdings hat immer irgendetwas nicht ganz gestimmt. Entweder er war nicht Variabel einstellbar oder man hätte noch einen eigenen Filterhalter benötigt (die rechteckigen Filter),... Es gab einige Gründe warum ich nichts passendes gefunden hatte. Dann eines Tages, bin ich auf den K&F Concept gestoßen. Ich hab mir gedacht "Naja, für um die €20,- wird man schon nicht viel falsch machen können.. Und wie ich recht behalten sollte! Nach einem gewohnt Blitzschnellen Versand, dank Amazon Prime lag das Ding also in meinem Postfach. Ausgepackt und geöffnet, war ich schon einmal davon überrascht, dass neben dem Filter, der in einem eigenen, mit Moosgummi gepolstertem, Hardcase daher kommt, auch noch ein Mikrofasertuch dabei war. Für 20 Euro beachtlich. Abgesehen von oben gennanten war auch noch ein kleiner Zettel dabei, auf dem man Kontaktdaten finden konnte, sollte man nicht zufrieden sein. Der war in Deutsch verfasst und leider von Rechtschreib- und Grammatikfehlern nur so übersät. Da ist mir Englischer Text wie auf der Filter-Box doch lieber. Nun zum Filter. Natürlich darf man sich für einen so günstigen Preis, kein Spitzenlevel erhoffen, aber solange man im auf dem Filter angegebenen Bereich bleibt und sich dem maximalen Grenzwert nicht all zu sehr annähert ist, ist auch die Verdunkelungsqualität echt nicht schlecht. Man sollte sich selbstverständlich im klaren darüber sein, dass sich Objektiv Deckel nicht mehr auf dem Filter befestigen lassen. Zumindest, war das bei meinem der Fall. Alles in allem eine sehr solide Investition für knapp 20 Euro. Ich würde und werde ihn wiederkaufen. Ein kleines Video dazu, werde ich bei Zeiten machen und dann hier verlinken.