Lovely little addition to my filters, helps at those seascape sunrises, sunsets.
Good quality coating, no colour cast or degrading in sharpness.
Probability wouldn't have got a reverse grad if it was expensive but for this price is a no brainer.
Packaging is very nice and feels like you got a high end product.
It's my first K&F filter and I'm pleasantly surprised.

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

Filter holder:
First of all, it must be said that you of course need a filter holding system for the filter. 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.

I bought the graduated filter because it was recommended to me by friends.

After a few weeks in use I can say that I am more than satisfied with it.
When taking photos, it is necessary to darken the sky (e.g. at sunrise or sunset) in order not to get a burned out sky or too dark foreground.
This is where the filter shows its strengths. The filter can be easily positioned in the appropriate holder without the risk of it slipping out. So you get beautiful photos even with long exposures.

In order to expand, I will add more filters of this brand later.

I can give you a clear buy recommendation!

I had never owned a K&F Concept filter before and was pleasantly surprised when I first used it in my landscape photography. The reverse graded ND filters of the popular brands of photo filters are usually quite expensive and this one in particular is cheaper and achieves results that correspond to those of the most prestigious filter brands and are even better. It is made of glass, which is an advantage over resin filters as it is not easily scratched. I really liked the filter cover, which is made of leather with internal protection. In short, I really liked this filter and I am sure that I will use it very often in my landscape shots.

I recently purchased this set of filters for my Nikon camera but they also fit other brand cameras I own. That is a huge plus for me. For the money, this filter set perfectly meets my needs. This set is good quality, comes well packaged and arrived in perfect condition. I would recommend this set to others.

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

I always wanted a high quality graduated filter. And I found it. The filter sits firmly in the holder, the filter holder can be easily attached to the lens. Everything perfect. Very good quality. Everything feels high quality, everything is made of metal and the gradient filter, which is made of glass, is well made.

bought the filter bag to have all the filters at hand more quickly and not to have to search for them, and to save space. The bag is of high quality and fits perfectly for 100x100mm filters. A total of three (theoretically four) different filters can be stowed in it. So it is perfect for a standard ND filter set (8,64,1000). The inside of the bag is completely lined with microfiber so that the filters can be transported in it without additional protection. As a smart feature, it has a pull-out mechanism. This means that if you open the bag and pull the tab, all the filters are offset and highlighted so that you can grab them much better and read the name directly. I bought another glass filter at the same time - ND64. Since I already own an ND8 from another brand and the ND1000 from K&F, this was of course still missing in the series. Overall, I am super satisfied with the quality of K&F. The filters (update 2020) have almost no color cast anymore. In certain light situations, my ND64 filter turns green. However, this can be corrected without major problems during image processing. The shape of the filter (no round filter) also means that there are no problems with vignetting or falling sharpness. The images are therefore almost unaffected in terms of image quality. The processing is top (no sharp edges, stains, etc.) and the price speaks for itself. All in all, I'm very happy with the entire filter system from K&F and will probably get hold of the gradient filters soon!

The picture quality on these filters is by far ahead of variable ND filters. I am a videographer and rely heavily on ND’s to get the shots I want.
They are super Sturdy and the I love the case the filter came in. Not to mention having this on your rig looks really cool!