This has been by far the best camera I have used so far. The rotation is a game changer.

I can only recommend it to every photographer and especially filmmaker!

I am a self-employed filmmaker and usually work with relatively expensive ND filter systems or have a built-in ND filter in my Sony Fx6, for example. But I needed an external solution for my Sony A 7 IV. Before I buy systems from Tilta or similar for 500 - 1000€, I wanted to try out the K&F solution at least once and that was the right decision. Works very finely at removing light. The filter wheel is also easy to operate, so you can also adjust the filter on a gimbal. Great!

This has been by far the best camera I have used so far. The rotation is a game changer.

As a full time filmmaker I own several K&F filters. They are cheap but have a solid performance. Especially fir your output medium is Social Media or even TV. (I would not use them for Film related projects).
One of the problems this ND filter solves is especially when you using a Matte box and you have the ND attached to it. It is really hard to "feel" the filter without looking at it.
I have smudged the lens with my sticky fingers several times because I can't really feel the ring while holding the camera.
This filter has to nice handles that you can tactically feel easily when using a matte box.
Great addition for my camera bag.

It takes a little getting used to, but the value of a high quality mount, ND filter and a full circular polarizer with several adapter rings makes it a bargain. I can even use it on my 14-30 NIKon Z Len 14mm 14-30 with no vignetting once properly attached. An awesome kit. The ND is excellent and neutral. Recommended.

Quality best inspection camera I ever own.

I have tried them all and I now use only K&F Concept systems! All ND filters have a color cast which can be fixed in post, HOWEVER, I have found K&F Concepts has the least. I use both the NANO Magnetic and the X-Pro Systems. . and they are THE BEST!!

Best quality filter I had in a while,