K&F Concept77mm Variable ND Lens Filter ND2-ND400 (1-9 Stops) 18 Multi-Layer Coatings Adjustable Neutral Density Ultra Slim Lens Filter for Camera Lens

For the price, this is the best VND. Shifts color slightly but nothing that cannot be fixed in post. Only problem is that it works upto 8.5 stops. Still gives me a 2.8 aperture shutter 50 in UAE’s harsh midday sun. Unlike others who commented, my filter sits properly with the markings on the top on Sigma 24-70 f2.8.

Good filter for the price they ask. Using mostly for videos.

Perfect for me.Does the job well.

I’m not satisfied with the qualityIt creates a huge vignette and also X effect

I don't think there is anything at this price that is that good. I have to be honest, I have not used any other variable ND filter but this one is amazing, super clear and no fading of colours. Great product and will recommend it to others.

I tried it on 70-200mm lens it was fine however in my 24mm lense while change the intensity in ND filter (ND 8 to 10) you can see a dark croas forming on the filter instead of making the whole scene dark.

I don’t recommend buying this ND filter. Would be better if you invested into something more expensive but better quality. This filter did a lot of vignetting on my videos and it also moves a lot because it doesn’t have hard stops. Unfortunately had to return it.

So on the corners it have vegniet and its just destroyed the footage

This filter is nicely packaged, operates smoothly, and covers a wide range of stops so I was really disappointed when I discovered it did not play nice with my cameras. On both my Sony a7iii and a6600 the filter would produce a dark "X" in the image instead of evenly attenuating the light. I assume this is a polarization interaction. In any event, this is a very nice filter, it just didn't work on my equipment.

tiene una gama muy amplia pero en ciertos momentos crea sombras ya sea en el centro o viñetas muy fuerte, recomendaria mas uno sin una gama tan amplia pero que evite ese viñeteo

El uso de repente hace que se vea como telaraña la imagen

Quality is ok, but there's a minute hairline scratch on the edge. But not noticeable while firing a shot or even after, so I choose to go with it without a replacement. So be careful by thoroughly checking yours.

I purchased this for my Canon EOS 70D to take landscape photography and has been a Brillant addition to my kit. The glass is nice and clear and serves it's intended purpose, taking my photography to the next level.