I love using filters, the polarizing filter in forests or on the coast I find it essential, also when there is hard light, when there are low moving clouds and in rivers, waterfalls and coasts I love using the ND filter. In situations where I don't require the polarizing filter or ND filter, I like to use Ultraviolet to protect the lens.

The truth is that sometimes it is cumbersome to use them, especially in adverse situations when, for example, it is cold and you are wearing gloves, there is a lot of wind, you are very close to a waterfall and there is spray, etc, etc. It has also happened to me on occasion that I have left the filter on the lens for a while and then it has been difficult for me to remove it, so I have found it interesting to try the magnetic K&F filters, it seems to me to be a comfortable system with a good quality/ price.

In the package comes a case with the 3 filters (a polarizer, a 10-stop ND and UV) and a screw adapter, the case can be placed on the belt to always have the filters at hand.
The use is quite easy, you simply have to place the thread adapter and place the filter in it, as it is magnetic it immediately catches it and from there it does not move, if I want to change the filter it is as simple as removing it and putting it on, you can see the video where I record the simple process.

The good thing about this system is that both the adapter and the filters are thin and you can also place two filters at the same time, for example the polarizer and the ND to take out moving clouds with polarized light avoiding unnecessary reflections.

In short, I have loved the system of changing the filters so quickly, when I am traveling or in uncomfortable situations I will appreciate it.

I ordered an nd 1000 filter for 55 mm it is very good for starting long exposure (see photo) there is even a protective box with hooks so that it does not move inside HIS BEST ADVANTAGE IS THE PRICE It is cheap and it works great!!

Exceptional quality of this 82mm and 1000 filter. Excellent material finish, perfect fit in the thread and exceptional results. Image taken at 7am. Comparison between shooting without filter and shooting with filter. I used a time of 15 seconds to achieve the water silk effect”. ideal for photos at the sea and streams for the so-called "silk effect" This is a neutral density filter with really important construction characteristics. Advantages: Quality of the glass; 82 mm perfect graft; Excellent performance;

This filter produces a green cast. BdB set to sun, a green turn appears, this corrects correctly with Photoshop or other software.

I just received this (52mm, for a Nikon 50mm f/1.8 on a D600) and it looks solid.
Initially, I had some trouble with the exposure. In a setting where aperture priority gave me 1/100s (w/o filter), I expected to get 10s shutter speed with the ND1000. However, the camera came up with ~1/5s - and the photo was almost black. It took me a while to figure out that the metering was affected by light coming in from the viewfinder. Once I covered that, the images were well-exposed (and I got the 10s, as expected).
I hope this saves others some time and worries (one hour in my case, plus the fear of having wasted $28 and not being able to understand my camera...)

Note much to say great quality

Very good does its job

Look forward to using it this spring

To smooth out water in waterfalls or creeks, you need 9 or 10 stops of ND. The VND filters that go up to 400 are not enough.

It works, looks good. Good price