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.

Delivered next day, great service, happy with product

Awesome filter kit,Product packaging is Decadent,The item itself is of high quality,Aluminium filter holder and lens rings,And the filter case is top notch,The filter itself is High quality optical glass,Tested this out as soon as it arrived,Does not suffer from light leakages and there is no colour cast on the images unlike some other brands, overall I am very satisfied with my purchase, will hopefully be looking to get the k&f graduated filters next,A recommended buy.

A mild light reducer. Can be easily plugged in together with other medium-strength ND filters. Quality like other manufacturers offer. Good optical glass.

Great quality product at a great price, note these are all Hard Grads which is exactly what I wanted.

These filters work, especially in areas rich with sodium/mercury vapour lights, but don't expect total cancellation or miracles. It does help bring out details and colours in the night sky.
I accidentally lost an accessory, but it continues to work. the K&F team contacted me and insisted on sending a new one to make it right. I just received a new accessory yesterday. At least you know that they have good customer service and are willing to make things right for you.

I've been toying with the idea of ​​buying a graduated filter for a long time, although the prices from Nisi, Haida, etc., around 150 euros, have always put me off.
Then I came across the filters from K&F, because the filters were reasonably priced, I ordered them.
The extremely beautiful and high-quality packaging should also be emphasized. Here you get an imitation leather case that is lined with fine fabric on the inside and has 2 magnetic buttons incorporated. This case is again in a nice padded cardboard box, very valuable and stable so I wasn't really disappointed.

Filter holder:
First of all, it has to be said that you need a filter holder system for the filters, which costs around €25 at K&F. This is well made and serves its purpose. Here comes the filter holder in a padded cardboard box. The scope of delivery includes the filter holder and 8 adapters in the size 49mm - 82mm.

So I'm already looking forward to going out into nature with the filter to test it.
The adapter ring is screwed onto the lens thread and the holder is simply mounted on the ring with a snap mechanism. The mount holds securely and doesn't give me any concerns that it might not hold even with minimal play.
The optical quality of the gradient filter is great! I didn't notice any loss in image quality and there's no distortion or vignetting. Furthermore, I could not detect any color impairments or other color distortions. The filter does what it is supposed to do, it easily darkens an overexposed sky and saves me a lot of work in post-processing.

Conclusion
Since I haven't worked with ND filters before, I don't know what I could complain about here.
Overall, I am very satisfied with the glasses from K&F. You get a high-quality, processed filter with top optical quality and a good scope of delivery (artificial leather case). For the price of around €115, it doesn't need to hide behind the other brands. I will soon buy more glasses from K&F.