I haven't used it much yet but initial results were decent.

Bought this for my wife as I also have the same filter. Found hardly any colour cast & very clear.

Buy several of K&F's filters, and while the tripod brand disappoints, it makes up too much for filters. This kit is excellent, in terms of optical quality, and materials.
They have almost no cast color or chromatic aberrations, as well as the image does not lose sharpness.
Really recommended, especially since the ND1000 can compete head-to-head with a Lee Big Stoper, and give better results for a fraction of the price.

The only thing that it has like all KIT is that it does not have a case to store everything (the K&F case is sold separately and is quite small for my needs).

Bought this just for larger filters, but impressed by the build quality.

Great product

good quality . highly recommended

I shoot a medium format digital camera and use graduated neutral density filters for landscapes. The filters must be able to be moved up or down to accomplish their purpose. The K&F filter holder comes with adapter rings to fit most common sizes of lens filter threading and accommodates the flat filters of 100mm width allowing hands free management of the filters.

Great product with affordable price.

I've been thinking for a long time if I should get this filter. Ultimately, however, Amazon has no risk and can test them.

Pro:
Top packed.
Glass filter which is evenly coated.
Leather bag.
I find the bag better than the chunky boxes such as Lee or Haida

Negative:
slight but really very slight colour changes on the edge.

I'm going to get the other filters to test.

I bought the filter bag in order to have all the filters on the one hand faster and not to have to search and on the other to save space. The bag is high-quality workmanship and fits perfectly for 100x100mm filters. A total of three (theoretically also four) different filters can be stored in it. So it is perfect for a standard ND filter set (8,64,1000).

Inside, the bag is completely covered with microfibre so that the filters can be transported without further protection. As a smart feature, it has a pull-out mechanism. That is, when you open the bag and pull it on the tab, all filters are highlighted offset so that you can grab it much better and read the label directly.

I have added another glass filter at the same time - ND64. Since I already own an ND8 from another brand as well as the ND1000 from K&F, this was of course still missing in the series. I am on the whole super happy with the quality of K&F. In certain light situations, my ND64 filter goes easily into the green. However, this can be corrected without major problems during image processing. Due to the filter form (no round filter) you also have no problems with vignetting or sloping sharpness. The images are thus almost not affected in the image quality. The processing is top (no sharp edges, stains etc.) and the price speaks for itself.

All in all, I am very satisfied with the entire filter system of K&F and will probably hit the gradient filters soon!