I needed a more travel friendly set of filters to take with me on my hikes that would be too cumbersome to use my square ones. Having these filters in it's own soft pouch was perfect and it didn't take up much room in my camera cube. The magnets were strong as they held on while I was setting up my composition - sometimes in the rain and while on uneven ground.

UPDATE 10/26/21: After over a month, I've already lost a CPL filter. Make sure the filter is flush in either the UV adapter or adapter ring. I was busily setting up my camera on a cliffside when I accidentally bumped my tripod and the CPL filter fell off.

this is a 10 step ND filter, with no color casts, with a perfect fit with no vignettes or alos and with great optical quality, after testing it for a few weeks i have to admit that this is a high quality filter, its price is very affordable and if you are looking to get started with filters and do your first testing this model, it really does its job well. It is perfectly stored in a highly protected rigid plastic box with screw lock and guides to prevent it from moving inside, the wire adapts perfectly in position, does not let light through and its installation is quick and easy. With a very competitive price and according to its use, recommended purchase, offers great quality without loss of sharpness,

I was looking for an ND1000 filter as I like to take landscape photos and in some very light situations the ND2 to ND400 variable filter I didn't give enough for some effects. Being new to this world of filter photography, I didn't want to make a big payment so I decided on these round filters instead of the filter holders, which although these are of higher quality are also more expensive. I must say that I did not disappoint this ND1000 at all, does not lose quality photo, I do not appreciate the dominance in the colors, and if something vignette in the photos something underexposed, while in photos with the correct exposure does not occur. I used it on an APS-C camera so the crop factor doesn't affect you at all.

Does the job quality ratio, very correct price be careful not to force the thread because then it is very difficult to remove it

My circular filter kit for each lens size includes a protective UV, a CPL and ND 10 and 6 stop. The K&F kits contain all but the 6 stop. The 6 stop can be ordered separately, though at this time only from the manufacturer's website.

For any given size kit, the K&F Concept magnetic kit costs far far less than would top line individual threaded filters from other manufacturers (Breakthrough Photography, B+W, Hoya HD3, etc.). Yet the optical qualities of these K&F have been tested and are equal to the best. My own experience is that the K&F coatings are also just as effective at repelling water droplets as are my most expensive filters.

Having used K&F Concept magnetic filters in two sizes for a few months I am loving the speed of filter changes and the absence of thread jamming when I stack an ND on a CPL.

My only criticism is the lack of knurling on the front edge of the CPL frame. Magnetic CPL filters do not need or have a two piece construction. The entire filter is rotated in its magnetic attachment, which is fine but remains a two-finger grasping maneuver. To rotate the CPL you'll need to temporarily remove the lens hood. Maybe had K&F added knurling to the from edge a fingertip would suffice, but there is more friction opposing rotation than in a well made two piece threaded CPL. Off course you could attached your old threaded CPL to the lens, screw the open ring magnetic adapter onto the CPL, then add your NDs magnetically. You'd risk jamming the adapter ring to the front threads of your old CPL. I'm not going to do this.

The protective UV is only meant to be attached directly to the lens threads. It is a lens protector. It does not magnetically attach atop the other filters or the open adapter ring. You are give two threaded adapters, one is just an open magnetized frame. The other has the protective glass. The CPL or ND can be clicked onto this protective filter, but not the other way around. My advice is to use the protective UV when facing blowing sand or salt laden ocean mist (and when shooting from a Russian reindeer sleigh where showered by flying feces).

colour-neutral, very easy to use, a significant improvement compared to screw-on filters or the large 100x150 slide-in filters. The included bag is excellent, practical and fits in everywhere.
the polarizer seems better in terms of color neutrality than the expensive branded product from Nisi
The filters fit on the Kase filter holder without any problems. So far I don't see any difference in the pictures. Unfortunately, there was no circular gradient filter at K&F

Yesterday I got the filter and today I took the camera, the filter, and tested it. My first contact with the ND 1000 filter was satisfactory. The number of light reduction step is exact 10 In short, considering the price you have, I give you a high pass and I think the purchase is good and would repeat. One of the things I was worried about was having issues with focus, framing, or light metering. I had no problems and all photos were taken automatically and even adjusted a little with the focus manually. Focusing isn't as precise as light is missing, the image has less contrast, and a bit more manual focusing is required. When the sun is hidden, the focus does is no longer possible even if there is clarity. I am attaching photos, just note the photos I took with my Olympus OM in auto, both exposure and focus. The last two photos are the same without and with filter, you can see that with filter there is a 10 step decrease in exposure (from EV-14 to EV-4) - I added some photos taken the next day , I took advantage of this in the sun

the magnetic force of the filters is reassuring because strong
the quality of the processing of the nd1000 seems in the standard without colorimetric drift

Superb Filter, impeccable delivery and very good product. The packaging is top of the range, the filter comes with its very practical case for transport. The filter itself is of very good quality, no plastic or entry-level effect. The transport case is very practical, I'm a fan! The filter is perfect for long exposure photos during the day, as well as for video. I use it on my 70-200 gun and it goes on and off very easily. Very satisfied with the product and very good value for money

Superbe Filtre, livraison impeccable et très bon produit.

Le packaging est de haut de gamme, le filtre arrive avec son étui très pratique pour le transport.
Le filtre en lui même est de très bonne qualité, pas d'effet plastique ou entrée de gamme.
Letui de transport est très pratique, j'en suis fan !
Le filtre est parfait pour des photos poses longues en journée, ainsi que pour la vidéo.
Je l'utilise sur mon 70-200 canon et il se met et se retire très facilement.
Très satisfait du produit et très bon rapport qualité prix