I treated myself to a set of magnetic lens filters and bought this cap here as well. If you often use filters for photography, you should think about getting a magnetic set!

The filter is mounted directly on the lens. You can always take it, it is not heavy and you will get great effects with it!
Practice & optical quality:

many voices will say, such inexpensive filters simply can not reach the quality of a brand filter and also I was until now someone who would have immediately affirmed this, so much I was convinced of my B&W, Rodenstock, Haida and Co. filters. But now the surprise, the K&F filters show no abnormalities. No unnatural color shifts, no clear loss of sharpness, hardly any flare and ghosting susceptibility, simply nothing where I would say at first glance that it would be a reason for exclusion. And I think this fact has opened my eyes. Either K&F has found a manufacturer here who also does this for the brand companies, or as I think, they have simply inserted a second layer in the factory and instead of the brand name, simply lasered K&F on the filters.

This is a more than successful set that is worth every euro, not only for newcomers to the subject. Ambitious users will also find a good alternative to the filters of the established brands.
It really remains to hope that K&F brings more of these magnetic filters on the market, because I would like to have another ND8 and ND64.
Therefore, I can, with a clear conscience, give a very clear buy recommendation.

I have bought and used a number of K&F CONCEPT product for my photography over the years and have always found them to be a great balance of quality and value, and this lens kit is no exception.
I think it's an awesome basic filter kit for landscape photographers.

It seems like an easy system especially if you can get magnetic rings for same size filter on different lenses

The filters are well made so far, the filter glass is flawless and the magnetic ring is cleanly finished.
The optical performance of the filters is good fa there is nothing to complain about, the polarizing filter is essential for car photography and is therefore almost always mounted on my camera.

The product comes very well presented, with its case so you can take it anywhere. The strong point of these filters is that they are magnetic. With enough force so they don't fall out, and with the comfort of not turning each one around to screw or unscrew them when putting them on and off.

I have always used the threaded filters on my camera, going back to my earliest days in photography. And we all know the effort it takes to change one of those filters - you have to unscrew the current filter and then screw the new one onto the lens, a process that takes a couple of minutes, at least. Not always ideal. With this set, you have two threaded options: an empty ring (with no filter or glass of any sort) or a threaded UV filter. The other two filters (a circular polarizer and a neutral density 1000) then attach to either of the previously mounted rings magnetically, so that switching filters just involves pulling the filter off and putting another in place - in just seconds. An excellent option in situations where you might want to change filters frequently. In addition, the set includes a convenient carry case, with separate, padded pockets for each of the filters. This case can be worn on a belt, or attached to camera strap (or in my case, the chest harness I use to carry my camera while hiking), which ensures that the filters are close at hand when you need them. My only complaint is that the magnets are a little bit too weak. At one point, as I was setting my camera down, I bumped the filter and it fell off. Luckily, it does not appear that the filter was scratched or otherwise damaged, but if you use these, you want to be aware that they can be knocked off relatively easily. You probably would never have a problem if you only used them in a studio environment, but if you use them outdoors, especially if you are moving around a lot, you want to be careful with them.

The idea of a magnetic filter system is very good, in the set you get the mount, circular polarizer, UV filter and an ND1000 filter all inside a nice quality pouch to keep them safe. This set is ideal for the landscape photographers out there, the ND filter allows you to slow down the shutter speed to enhance the effect of movement, the circular polarizer allows the control of reflections. Overall a very handy set that will be a permenant part of my kit.

I like how they are easy to use and saves me time and frustration from having to switch lenses.
I do wish that I could use my K&F 150x100 square filter holder with this kit.
It’s unfortunate that K&F did not create this kit with the thought of using it with the square filter kit though.
I do use a UV and CPL circular filter with my square filter system at times and not to be able to connect my K&F 82mm filter holder ring with this is a bummer.
I’m surprised it doesn’t work with it or that it’s not able to screw onto the magnet filters in this kit.
K&F please fix that in the future.