It's hard to find filters that works well with a matte box but this one works perfectly.
06/10/2025
In my opinion, the K&F Vario-ND from the Nano-X series is one of the best variable ND filters available, and it's also unrivaled value compared to any other filter on the market. I've already purchased many different diameters and ND levels from this series and am very satisfied. Ghosting and other distracting reflections are extremely reduced or only occur in extreme situations. I definitely recommend it.
02/10/2025
This ND8 filter is very thin and thus allows you to keep the lens hood and lens cap, unlike a variable ND filter which does not allow you to replace the lens hood, which is ultimately a big handicap outdoors.
29/09/2025
As a photographer, I try really hard to make sure I’m only using gear that is reliable. K&F has done a great job of being a reliable company for budget-friendly camera gear. I have some of their other pieces of equipment and I continue to be impressed by both their dedication to superior build quality and attention to detail in their products. I found that the filter screwed right onto my lens without any issues and I was also able to remove it without any problems. Unfortunately, I wasn't able to capture a long-exposure because I don't live near any waterfalls and at the time when I got this filter, the weather really wasn't cooperating with me much. I did, however, hold the filter up to the lens without screwing it onto the lens so that I could see the difference between the image with the filter and without. With this type of test, you can clearly see a correctly exposed image and one that is darkened quite a bit with showing only the ‘hot’ spots of light in the photo. I did take a few shots with the filter installed and I noticed that there was no edge vignetting issues and because the glass is high-quality, I didn’t notice any ghosting either. All in all, this is a really nice option for a budget-friendly ND lens filter.
10/08/2021
Got this to reduce overexposure with the Canon 17-40 4L wide lens. Pretty happy with the results so far, and it is definitely great for long-exposure shots. I have been K&F lens filters for a few years now, and they have been my primary ND filters.
03/08/2021