K&F Concept makes solid gear, and I’ve used a few of their more budget-friendly filters before. This new Nano-X series definitely feels like a step up in quality.

The kit comes with a premium case (holds four filters), a CPL + VND 2–32, a 1/4 black diffusion filter, a magnetic base ring, and a magnetic lens cap. Just note that only two of these are actual filters — the other pieces are for mounting and protection.

This is my first fully magnetic filter set, and I’m impressed with how secure the magnets are. The filters themselves feel heavy and well-made, with no cheapness to them at all. The CPL/VND combo works great and saves me from stacking, and the 1/4 black diffusion strength feels perfect — subtle, but noticeable enough to soften highlights without overdoing it.

At around $125, it’s definitely on the pricier side, but the convenience, build quality, and the premium case make it worth it if you use these types of filters regularly. For me, the magnetic system is the biggest win — swapping filters on location is way faster and smoother than screwing them on and off.

Overall, this is a high-quality kit that feels premium in every way. If you need a solid CPL/VND and diffusion filter setup with the bonus of magnetic speed, it’s well worth a look.