K&F magnetic filters - CPL, UV, ND1000 - Excellent choice !
Packaging : 6,5 / 10
Nice case that keeps the filters together and protected. With velcro and ring to attach it to a belt or backpack.
I don't particularly like the plastic box, I would have preferred something ecological like for other brands, but it's not something important in use so it weighs less on the judgment of the packaging.

Handling: 9,5/10
Excellent workmanship, the filter is metal, threaded which fits well into every lens in my possession.
Great that they are magnetic. In some conditions, screwing on a filter is very difficult and time consuming as well as the risk of it slipping out of your hands. In the case of the K&F magnetic filters, you just have to leave the holder mounted. If necessary, simply move the filter closer to the lens and it will attach itself powerfully and precisely.
This feature is the main reason to buy these filters.

Optical quality: 8/10
ND filter: Excellent sharpness: there is no loss of quality in high contrast areas. As with most ND filters, the filter has a purple/magenta cast, nothing that can't be corrected in post-production (see photos - doesn't work on PC just to show the quality of the filters). Slight vignetting, but really slight, nothing major. Score : 8/10

Polarizer / CPL Filter: Very very sharp filter, no loss of quality when editing. It tends to slightly "warm up" the images, but again nothing that can't be corrected with a touch in post-production. Excellent reduction of reflections on water and leaves affected by bright light. I don't like the effect of the sky being too intensified towards the Blue color (which also happens with all the other CPL filters I've tested). Important note in this case, it does not produce any additional flare compared to a use without filters

UV filter: I never use UV filters because I find them useless except in case of danger for the lens (salt / water splashes / resins, sand). I must say however that this one has a good performance, it does not lose sharpness or worsen the flare compared to the lens without filter.

Quality/Price: 9/10
For the general quality of the filters in question the price is LOW.
Such a kit is suitable for both demanding amateurs and professionals because the weak points of these filters are few and in any case surmountable, while the strong points (speed of use and sharpness) are more important.

I am a photographer and I love adding accessories to my kit. One piece of the ‘kit’ that has been elusive to me is functional, easy-to-use lens filters. I have a great set of variable ND filters, but the one thing I keep struggling with is getting them lined up exactly right in order to screw them into the lens. K&F Concept, a surprising, budget-friendly accessory manufacturer has a really cool set of magnetic lens filters. The set comes with a soft-sided, waterproof carrying case, adapter ring, MCUV filter, CPL filter, and ND1000 filter. The idea behind this set is that you screw on one adapter, leave it on the lens, and then pop the filters on and off as you need them. You don't waste any time while shooting trying to get the filters lined up just right. I think this is a great filter system. The filters are well-made and high-quality.

I've had these lens filter kit for a few months now. Unfortunately, the magnetic base ring got warped probably from pressure on my bag. They replaced it without any hassle. I would suggest keeping the base ring in a non-bendable case which is what I will be doing from now on. I would definitely buy from this seller again!

Great filter, very easy to install. They could have left out the UV filter and added an ND filter instead. UV filter is superfluous and nobody needs it :)

Great product but when you buy a single filter you get a lens cap with it but you do not when you buy the entire set.

very nice filter kit with pouch. Quality is great and just fit the lens without issue. I used to buy my other lens filter from Taobao and now I will definitely go to K&F for sure. It's cheaper and fast delivery.

I was nervous buying these as I am very picky about quality and results. After looking at a recent youtube review I bought them. They work great. Little color shift and very close to claimed stop reduction. Consistent. Dont see image quality loss vs lens alone. No significant vignette. Wish lenses in cases rather than pouch. Hard to get out without touching. I bought lens cap set and will leave screwed together in case to resolve this. Great set. Would recommend.

This is a nice set of Neutral Density Filters. Picture quality is excellent. With the four filters and stacking you have the same as 10 filters and they come with a handy carrying case.

These are very nice, especially for the price. I’ve used them a lot on film and digital and I have not noticed any color shifting or inconsistent exposure across the frame like you experience with the cheaper variable filters

Just when you thought... who would reinvent the wheel? K&F did it so well! I have the bevy of traditional filters and have always been screwing them on and off, carrying them with me, etc. All the usual ways we all use. That's what caught my eye when I saw "magnetic" and although... eh, seems weird. But I'm always ready for life when it comes to those little things, so I gave these a try. And now I find if I had to screw my filters on it would drive me crazy. This is a MUCH BETTER mousetrap for filter play! I swap out filters more often and use them more than I normally would. The magnets are strong and the filters are what you expect them to be. So far I love these. They just clip on, you screw on the magnetic ring and then the filters clip onto it. Your lens cap goes on top of the filter, so if you don't want the filter, I take it upon myself to take it with the lens cap and set it aside until I need it. If you use or swap out filters a lot, do yourself a favor and get these! I'm about to order a few more sets for my other lenses.