If you are looking for good quality filters that don't negatively affect your image and are very easy to carry and use, I would definitely buy magnetic ones. Carrying the square ones is sometimes a nuisance and I find the threaded ones much more uncomfortable, apart from the risk of them falling off, I'm a bit handy and it has already happened to me several times with the threaded ones. With these so far no problem and I'm very happy.

Very comfortable with the magnetic mechanism. The screw ones got stuck in my lenses several times. With the magnetic ring they are quick to change and use. The 82mm ones are compatible with the Kase system which offers more choice of filters but at a higher price. I now have a mix of the two brands and I'm happy with it. For price quality, K&F filters are in an excellent position. I highly recommend them

Good quality, photos look much better with it

I shoot in various elements and destinations where lighting is different and filters are needed for optimal results. I have been using the traditional screw on filters but I find it time consuming especially how it needs to be aligned perfectly on your lens, taking up to a few minutes for each one when I could miss the opportunity of my shot. I find this K&F filter set to be a great choice for me. I am no professional by any means and take photos for fun with my Nikon d850 and these filters have worked great for me. The magnetic adapter ring is easy to screw on the lens and the lenses stick to it well. These lenses work great in the rain and are not only waterproof but the water beads off of them. I have not had any issue of fogging between the lens and filter.
The come packaged nice in a hard case, each in its own slot. I find this to be a great value for all of the different lenses offered in this set and I am extremely happy with them.

This is a kit,the combinations to use CPL and ND1000 can be:
-Adapter+CPL, Adapter+ND1000 or Adapter + CPL + ND1000.
-UV Filter + CPL, UV Filter + ND1000, UV Filter + CPL + ND1000, UV Filter+CPL+ND1000

Comes in a padded case with a reverse zip to prevent any water from getting inside in case of rain. It can be clipped on the belt or anywhere else for comfortable use or transport.

As far as image quality is concerned I have few complaints, I haven't noticed any loss of sharpness or colour cast. I have been able to use both the UV+CPL+ND1000 up to 12mm on my APSC camera without vignetting.

As a landscape photographer, I found this filter system really interesting. Unlike screw 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 DETAILS Filters are delivered inside a comfortable and really well made case with four compartments. The case, in the back, has a hook and loop buckle that we can use to attach it to our tripod or to our trousers and, also, 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 proof against rain or water infiltration. The filters are contained and protected individually within special sachets to avoid any potential damage. CONSTRUCTION These magnetic filters from the Nano Series by K&F Concept are made of optical glass perfectly resistant to water, oil and dust. The external frame is made of slightly knurled aluminum to allow an excellent grip. They are extremely thin and, even by 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 are no color alterations, no loss of sharpness and details and no casts of any kind.POLARIZING FILTERThis polarizing filter provides a pleasant overall contrast to the image, increasing the contrast between the individual colors and saturating them without exaggerating. Furthermore, it provides a very slight warm cast which, personally, I don't mind but which is easily correctable in post-production.ND1000 FILTERThe first thing that strikes you when using this ND filter is that it produces a slight - but present - warm cast. Personally I think it is not a problem as it can be removed with one click in post-production. Finally, the overall sharpness as well as the details of the image are not altered. CPL + ND1000 FILTER. I consider the CPL + ND1000 combination very interesting. In fact, the polarization effect reduces the warm cast of the ND1000 filter and also provides a pleasant saturation and a soft contrast overall 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 K&F Concept Nano Series magnetic filter kit is truly 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, it starts to make itself felt. The installation and removal of the filters is nothing short of lightning-fast; in a matter of seconds you can easily mount all three filters and, in just as many seconds, they can be removed. The hold of the magnets is really good and therefore there is no fear of finding yourself with filters that fall during the installation phase. shutter or transport. TO WHOM IT IS RECOMMENDED 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 value between quality, size and weight; - those looking for maximum convenience when shooting and composing. PS The filter comparison photos have not been edited and, therefore, are the original file directly exported from the machine from RAW to JPG format.

All 3 filters for me are very useful. The stand-alone ring however, I'm wasn't sure how much I'll actually use it but surprisingly I just leave it on my lens unless it's pretty bad weather, which in turn I use the UV filter as a protective layer for the glass.The CPL filter works wonders and the ND filter is great for long exposer shots. the combination with the magnetic touch make this absolutely flawless. would recommend

I really like the convenience of this magnetic filter system. You only need to thread on the base ring and magnets do the rest. Makes it less likely to damage the threads of your lens if you don't have to keep putting on and removing a filter on every time you need to use it. I am using this with a 24-105mm full-frame lens and the base ring works with the lens cap and the hood although you probably need to remove the hood to snap on the filter because otherwise your fingers get in the way.
Each of the filters themselves are quite a bit heavier than the screw on K&F versions, probably because they need to make the filter ring out of a magnetic steel instead of aluminum. Whatever the reason, they feel a lot more premium than the regular K&F version.
In terms of performance, its a bit of a mixed bag. I don't have tremendous experience using CPL and ND filters (this is my first set) so I don't know what's considered good performance at a given price range.

Moving on, the CPL filter (photos looking out the window) has similar vignette to the ND filter at 24mm but appears to cut down quite a bit of reflections in my windows. Not much for me to point our here, it seems to do the job.
The set does come with a UV filter but I do not intend to use it unless I am in a rainy/dusty environment where my lens needs a bit more protection so I haven't tested it out yet.
For both the ND and the CPL filter, I did not detect any noticeable decrease in sharpness caused by using the filters.
I think the performance of these filters is acceptable. I am a little disappointed with the vignette but I have heard of much more expensive filters having similar issues so I don't want to be too hard on this set. All in all, for someone like me who does this for fun, I think its a great system to learn the basics until I can justify the move to something more premium.

I am absolutely satisfied with the overall package price performance is definitely right here the magnet is sufficiently strong, the bag offers good protection and can be fastened well with the double Velcro fastener and the eyelet for a hook I would buy the magnetic filter set again at any time

Classic use of the UV filter. Polarization and NE filter.