am a passionate landscape photographer as a hobby and have now switched from the screw filters to this rectangular filter system from K&F. The screw filters were all fine, but you don't have the option of attaching a graduated filter to the ND filter in order to achieve even nicer effects. It is mounted on the lens using so-called adapter rings, which are included in the most common sizes for lenses. After attaching the adapter ring to the lens, the filter holder is attached. This is secured by a small lever (spring-loaded) and later released again with this. Now you can slide the filter plates into the filter holder. This lifts a bit severely but it should also hold and must not wobble. It is also important to observe that the filter used is close to the lens so that no more light can penetrate between the filter and the lens, which could possibly ruin the recordings. In terms of quality, the system makes a good impression considering the price. The only thing I noticed negatively is that the filter holder has some play after it is placed on the adapter ring and why there is no adapter ring for a 55mm filter diameter in the set, I also ask. 55mm is a common diameter for lenses. I can highly recommend the K&F system for amateur photographers. The professionals will probably use filter holder systems from other manufacturers, but they also cost a lot more.

I've been using the product for about half a year (almost daily) and I'm very happy with it! Pro: The installation is easy and holds very well and with the installation rings it can also be used universally for every lens! The filter also keeps its promises and the quality is still excellent! Contra: the glass is a bit difficult to slide in, if you want to push the filter in, you should remove the attachment to avoid damaging the thread! Conclusion: I am very satisfied with the product, even if you have to be a bit careful! I give this product 8/10

Buy several of K&F's filters, and while the brand disappoints when it comes to tripods, it more than makes up for it when it comes to filters. This kit is excellent, at the level of optical quality, and materials.
They have almost no color cast or chromatic aberrations, as well as no loss of image sharpness.
Highly recommended, especially since the ND1000 can go head to head with a Lee Big Stoper, and deliver better results for a fraction of the price.

The only drawback that it has, like all KITs, is that it does not come with a case to store everything (the K&F case is sold separately and is quite small for my needs).

I was recommended this filter. It is exactly what I wanted. Excellent product with amazingly swift free postage

I bought this ND filter kit as I have had a great experience with K&F (their tripod is brilliant) and was looking for a system that would work with all my lenses. Firstly, the quality of the packaging and storage is extremely high, the glass comes in its own case that keeps it clean and safe. Secondly, it's very easy to set up and use (a little fiddly if you hand are cold) and thirdly, the picture quality is great, there is no colour casting (the colours you see in the images above is my editing, not the fault of the ND filter) and it allowed me to blur the water and clouds in the middle of the day.

Great deal working perfect and nice qualityEasy to use

So, I brought this to see why it was more expensive than the cheaper filters, but a lot cheaper than the likes of lee filters etc, I have been extremely impressed!I have taken this out today and although an over cast day, and I went to the beach at low tide, I thought I would use this as a chance to see if it’s any good.The first wow I had was the packaging... not something I usually bother about, but it is a thing of beauty. Then the quality of the mount rings, they are solid unlike all the other sets I have had that the mount rings have broken after a use or two. The quick realease ring took a couple of goes to get on then I noticed you have to put the far side in first then it locks in place really easily.Now the most important thing... the glass filter itself. Packaged really well, it does seem to be slightly static, but a rub down with a cloth and it doesn’t seem to attract dust at all. It holds tightly in the holder and is defiantly not going to move once in place. The quality of the glass looks awesome. Images have come out clean, and not a colour cast (although I thought it would have a green hue from looking at the filter the images do not seem to have any noticeable cast at all) and it does seem to be almost exactly 10 stops.I would easily recommend this to those looking to move into long exposure photography as it is well made, super easy to use and quality bit of kit to add some variety to your photography.I have attached a comparison of what the camera gave in auto and what I could get from the same scene with the filter.

Very nicely packaged, does the job, but a little tricky to affix, until you get the hang of it. Not a straightforward fitShame, otherwise would be 5 *

Wow is the word, quality of the filter is Top line it's glass comes with a lovely leather wallet. The ND filter holder is amazing it's metal and really solid comes with the accessories to connect with the lens.

Welp, after getting this and not having a need for it until, of course, 2 days after the return window had closed, I broke it within 15 minutes of starting to use it. The seller graciously replaced it for me and followed up with multiple emails to check in with me. Still getting to know the product but initial impression is good and the seller provided excellent service.