K&F CONCEPT 55mm Variable ND2-400 Lens Filter (1-9 Stops) for Camera Lens | Ultra Slim Adjustable Neutral Density Filter with Microfiber Cleaning Cloth (B-Series) FN101

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!

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!

Nice ND filter that gets the job done. It provides a useful range of light reduction, making it easy to control exposure in different lighting conditions. It’s straightforward to adjust and works well for both photography and video use when you need to manage shutter speed or aperture in brighter environments. Image quality is solid for the price, with no major issues in normal use, and it mounts securely to the lens without problems. Overall, a reliable and practical variable ND filter that performs well for everyday shooting needs.

K&F - Fantastic!!! Fantastic!! Fantastict! N/D (Neutral Density) Filter with 9 stops "came in clutch" to get fantastic photos with my 85mm lens and iris open at 2.8! Loved it!! Great Product!

Fits on the oem lens that came with my a6700. I have seen lots of people who have had issues with this nd filter but I haven't it looks crystal clear and it dose what I need ig to do. I had to buy the adapter ring 40.5mm to 43mm in order for it to fit. But it was easy to install and eassy to remove.

KF is a very good and reliable brand. I’ve been using this in the future for a while and it’s a lifesaver when you’re shooting outdoors. I love that this filter has options with different stops and it’s really good when you’re filming on places where the light may change. If it’s really good on my camera, he has a solid build and this product comes with a great price.

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.

The first issue, which is somewhat minor, is that the dots that mark the various settings as you rotate the filter to change the density/darkness are evenly spaced and not labeled. However, darkness changes exponentially, so there is little variation through the first half of the range and darkness increases rapidly at the end of the range. I had to use the meter on my camera to calculate how many stops of filtering were at each of the marked locations so that I could compute proper settings. Not that I have a cheat sheet, it isn't an issue, but it would be nice if the stops were just marked on the filter. The biggest issue is that after using it a few times, it apparently has developed some fogging between the two pieces of glass. It looks clear to the eye, but the camera can no longer autofocus through the filter, even at a minimum setting and adding the filter on a pre-focussed lens results in blurry pictures. I missed the return window by a day, so I'm out of luck. I increased my rating by one star. I was able to use a lens tool and open the filter and clean the inside. Apparently it had been fogged by some cleaning solution. I'm not sure there isn't some image degradation, even after being thoroughly cleaned, but it is useable again.

Zeer goed top

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