As a landscape photographer, I found this filter system really interesting. Unlike screw-on filters, these filters are applied and removed in a fraction of a second, while unlike plate filters they are much less bulky, lighter and, obviously, much quicker to install.

PACKAGING AND ATTENTION TO DETAIL

The filters are delivered inside a comfortable and very well made case with four compartments. The case, on the back, has a Velcro strap that we can use to attach it to our tripod or our trousers and, in addition, a metal ring so that it can be attached to our backpack, to the tripod column or wherever we prefer. Finally, the zip closure of the case is rainproof or water infiltration proof.
The filters are contained and protected individually inside special bags so as to avoid any potential damage.

CONSTRUCTION

These magnetic filters from the Nano Series by K&F Concept are made of optical glass that is perfectly resistant to water, oil and dust. The external frame is made of slightly knurled aluminum to allow for an excellent grip.
They are extremely thin and, even when mounting all three filters at the same time (UV, CPL and ND1000), the thickness is extremely limited.

UV FILTER

In the photographs I took with the UV filter, there were no color alterations, no loss of sharpness and details and no dominants of any kind.

POLARIZING FILTER

This polarizing filter provides a pleasant overall contrast to the image, increases the contrast between the individual colors and saturates them without exaggerating. Furthermore, it provides a very slight warm dominant that, personally, I don't mind but which is easily correctable in post-production.

ND1000 FILTER

The first thing that strikes you when using this ND filter is that it produces a slight - but present - warm dominant. Personally, I think it is not a problem because it can be removed with a click in post-production. The overall sharpness as well as the details of the image, finally, are not altered.

CPL + ND1000 FILTER

I find the CPL + ND1000 combination very interesting. In fact, the polarization effect reduces the warm dominant of the ND1000 filter and also provides a pleasant saturation and a soft overall contrast and between the colors of the final image.
In terms of sharpness and details, there are no significant deteriorations. However, there is a slight vignetting.

PRACTICALITY

The Nano Series magnetic filter kit from K&F Concept is really extremely practical. The case that contains the filters has compact dimensions, which allows us to carry it in our backpack sacrificing very little space.
The weight is extremely light, which is really useful for those who go on long excursions where the weight of the equipment, after several hours, begins to make itself felt.
The installation and removal of the filters is nothing short of lightning-fast; in a handful of seconds you can easily mount all three filters and, in just as many seconds, you can remove them.
The hold of the magnets is really good and therefore there is no fear of finding yourself with filters that fall during the shooting or transport phase.

WHO IS IT RECOMMENDED FOR

In conclusion, I would strongly recommend this filter kit with an excellent quality/price ratio to:

- those looking for a first filter kit to start experimenting with creativity;
- those looking for an excellent relationship between quality, size and weight;
- those looking for maximum practicality when shooting and composing.

P. S. The comparison photos of the filters have not been edited and, therefore, are the original file directly exported by the camera from RAW format to JPG.