This K&F VND filter is the do it all filter for you if you are a fan of the black pro-mist diffusion look. Having variable neutral density in combination with circular polarizer and black mist look you could essentially leave this filter on your video camera lens and get so many different looks. The large orange knob allows you to easily turn the VND portion of the filter and the rear ribbed ring allows you to turn the CPL which takes a little effort to turn but prevents accidental adjustments. The VND knob can also be tightened or loosened to adjust the tension of the VND adjustment which can be locked out to prevent accidental adjustment as well.

One problem that I ran into while using this filter was the fact that I am unable to mount this within my matte box as the protruding orange knob of the VND portion sticks out way too much and wont allow me to thread it into my matte box. You also cannot remove the orange knob by untwisting it all the way so I am just unable to use it with my matte box. Also the CPL adjustment is a little hard to adjust because unlike the VND, the CPL portion does not have a dedicated knob for you to grab onto to spin the filter.

With those gripes aside I do think this is a great run and gun filter that tries to do it all. Its perfect for someone that likes that constant black pro-mist look yet need the ability to adjust the ND and CPL. I will be using this for my fun camera as I am unable to mount this in my matte box on my FX3 but this would be perfect for my A7IV run and gun setup.