The filter does what it is supposed to do, it extends the exposure time. I haven't noticed any vignetting or wrong color reproduction so far. And so I'm satisfied. The packaging of the filters is very good and practical, which some higher-priced filters are not so good at.

I'm delighted with the quality.

The ND 1.8 filter is very good for the low price. The image becomes slightly more bluish with the filter. The deviation can be quickly corrected for both photos and videos. No loss of sharpness. The filter can be used in a 4x4 inch matte box, although 100x100 mm is actually a bit too small. Compared to 4x4 filters in the €200 range, I find the value for money excellent.

I've been taking photos as a hobby for several decades, first analog, then of course almost exclusively digital for 15 years, i.e. I've seen and tried out a number of photo accessories over the years. With the filter I bought here, three things were decisive. 1. The quality, I've spent too much money unnecessarily on useless photo accessories 2. The price, I don't see an point in spending more money which you can't see in the photos afterwards anyway 3. The durability and expansion of a plug-in filter system Attached Image with the graduated gray filter All points speak for this product. The filters are quickly attached, make a stable impression and are supplied in a practical case. The plug-in filter system is more than useful for the hobby photographer. In any case, I wouldn't want to be without it in my photo bag. I can't understand the fact that the filters are difficult to insert, which is often criticized here, on the contrary I even find this important because otherwise the filter could quickly fall through. After more than half a year and several sessions, I can only say about the durability of the filters, so far nothing has been scratched or even broken. Conclusion: Anyone who takes photos knows that this hobby can sometimes cost a lot of money, and often with this hobby it really is so; "If you buy cheap, you buy twice". However, I don't have the impression with this product that the more expensive competitors, who also offer plug-in filter systems, do it so much better that the surcharge would be worth it here. That's why I can only recommend this system

Good quality filter works very well to create fantastic images

For auto rigshots I needed a quality filter at a good price, this would be worth buying at a much higher price! It comes beautifully packaged with a high quality holder for the filter, all made from non-animal products! But none of this matters if it doesn't work, but it does! High quality glass with no tolerable impact on my A7R IV's image quality. If you need a great ND, this is it!

K&F ND filter, which allows you to film/photograph with a wide open aperture even in a very bright environment and thus the depth of field can be greatly increased even in well-lit situations. Conclusion: I recommend this filter to everyone for whom a perfect price/performance ratio is important!

You don't need to waste a lot of words about KF, the quality is undoubtedly outstanding. The medium filter fits in seamlessly there.

These filters are undoubtedly of the best possible quality. Yes, they're expensive, but if you're serious about your landscape photography, these are essential. I've owned high quality brands of resin filters before but they haven't looked at these. They are provided with an anti-reflective and anti-fingerprint nano-coating.

great product. better than Lee Filter in every way. made of glass makes them more durable than the scratch-prone Lee filters