It worked well I haven't tested it at the full ND setting because I haven't needed go yet
16/07/2021
Bought and used on my trip to Hawaii. Good quality, no issues, super clear photos using it on my tripod.
19/01/2021
Great filter . Using this on my Zeiss 16-35 f/4 on a Sony a6500 for film use. The picture and build quality of the filter is good value for money , made with quality glass . My only complaint and this is pretty big deal for me is my lens hood will not fit while using this filter . It’s one or the other for me now , which is a bummer.
16/12/2020
The vignette with this filter is a serious issue and I wish that I had read about this issue before purchasing it. You can see the issue in the attached photo.
12/09/2020
First K&F filter and actually surprised a bit by it's quality for such a affordable price
02/07/2020
I shoot with the Fujifillm X-T3 which arguably is the best video camera under $3000. However it lacked the variable ND filters that you would find built in to more professional video camera. I needed some more motion blur and lower my exposure when shooting video and this does it amazingly without any noticeable loss of details and colors. For the price this is a very valuable tool in my arsenal. The build quality is really nice with an all metal construction. The ring itself is smooth and allows for a nice variable exposure change. I really dig this ND filter and I think anyone should take a look at this since the image it produces are pretty clean.
23/05/2020
Not knowing that most, if not all, variable ND filters have different size threading on the exterior side of the filter, I asked for a solution to my concern. K&F promptly contacted me and provided a more than satisfactory solution.Thank you! Great products (this K&F ND filter and my other K&F polarizing filter) and great customer service.
11/04/2020
A very good filter. It’s very smooth and has a stopping point. I used this on my sigma art lens for a shoot. No vignetting!
16/01/2020
It doesn’t fade as dark as those cheaper 10x-400x ones (this is 2x-40x), but it fades well enough for photographic needs and there are NO artifacts or aspheric distortions.Quality is key.
23/11/2019