It is an excellent quality item, it allows you to take pictures with very slow shutter speeds, and the effects are incredible. Very happy

Well made, great value!

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 can't do that well.

Very easy to use system. The picture quality is really good as far as I can tell. The polarizing filter works very well. Thanks to the adapter, the filter can be used on any lens. Have never regretted the purchase.

bought the rectangular filter set directly from K&F. Since I have worked with screw filters in the past and had the problem with vignetting when screwing several filters on top of each other, I have wanted to buy a rectangular filter set for a long time. Since the sets from NISI, Haida and other well-known manufacturers are very, very expensive, as a hobby photographer I was looking for a cheaper alternative. When I saw several reviews on YouTube, I decided on the K&F set, which is half the price of Haida and CO. I have absolutely no regrets about my decision. The filter holder is very valuable and well thought out. I particularly like how the polarizing filter is attached to the holder and how it can be adjusted using the small wheel. The filters themselves are made of optical glass and show no color cast and are also well coated. Another positive aspect is that the filters have a plastic frame with a tab. This allows the filters to be inserted and removed without annoying fingerprints. A bag is included to store and transport the holder and the filters in it. Also included are various adapter rings for different filter thread diameters. As a landscape hobby photographer, I no longer want to do without the advantages over screw-on filters. I give a clear purchase recommendation for amateur photographers and professionals too! I wasn't expecting such excellent quality for this price. It's amazing what K&F delivers here.

Advantages: large, 92 mm polarizing filter, easy to rotate in the filter holder, filters come with plastic frames with grip lip, practical filter pocket, unfortunately only for the square filters, polarizing filter and holder, graduated filter too large. Disadvantages: Filter does not seal the light on the holder properly, there is a gap of 0.5 mm, only 2 sliding filter inserts, filter holder has some play and rattles a bit.
The ND 1000 has a magenta color cast and is easy to correct in image editing. All in all, the advantages outweigh the benefits, I can only recommend it. At Rico Best “filter photographer”, you can buy a plastic protection, “filter guard”, there are different sizes, order the right one.

After many reviews that I looked at on Youtube, I decided on the new K&F filter holder and have not regretted it so far. It is easy to use and makes a very high-quality impression. The use of the CPL filter is a great solution. Lever up, put it in and lever down again, done. Adjusting the wheel is also buttery smooth. In contrast to the first K&F filter holder, the filters, which now have a frame, can now be pushed in very easily. Not too easy and not too heavy either. A clear buy recommendation.

I'm amazed at the quality, everything is included and great for the price. The only drawback is that the filter holder sits a little loosely on the adapter ring, but that's a bit of a complaint at the highest level. The moss lip on the ring gets an extra plus point, so no light can enter from the side The function is given, which would be nice, an additional slot for a third filter, which you can screw on if necessary

This is ideal for my photography as I only need one set of filters to fit all my lenses.

You almost always have something to complain about, but in relation to the price offered, everything is really fine! I haven't had any discoloration yet. The slot is a bit stiff, but the glasses hold securely. Have nothing to complain about - fits.