What does a photographer do when they want to create a look for a photo session and that look requires multiple shooting angles.... but you only have one ND filter for one of your 82mm lenses?

... get another ND filter, of course.

Yes yes... I know, it was a cheesy way to start (but a very real problem we ran into a few months ago).

The fact is, I honestly don't know what's happened to K&F in the last few years, but they've gone from being "Oh.... Another filter manufacturer" to a "Wow... that's a fantastic result!!! Who makes this filter? '

This filter is NOT an exception to the above.

ND filters are often a double edged sword for photographers.... They work and they do what you want them to do.... sort of.

They tend to add color shift to your images, distortion if you have cheap glass, and they can often move your camera to the point where you have to manually adjust the shutter control... which leaves you taking photos after trial and error.

Also, when you use an ND filter, especially for very long exposures, you have to fight the light, so to speak. As the light of the day changes, so do your exposures.... and while you do a lot of trial and error, a 5 minute exposure at noon won't produce the same result at 5pm, so it's not like you can "set it and forget it" so to speak.

If you then add the word "variable" to the equation, things tend to get even weirder. When you adjust the ND, you often experience strange streaking, sudden fluctuations in exposure as you adjust the ring, AND that doesn't even take into account that so many ND filters have very loose adjustment rings that (I kid you not) can sometimes change their setting when a strong breeze blows.

This filter... IMPRESSIVE... I can honestly say that I have none of the above problems. There IS still a slight color shift, but it's consistent and doesn't change when you increase or decrease the ND level. Also, the levels are smooth and clear, and there doesn't seem to be any distortion... which is extremely shocking to me.

Also... there is NO rattle or looseness in the ring, which makes me happier than it should, to be quite honest.

The adjustment putter makes it easier to adjust without getting your fingers on the edges of the lens (makes it easier to adjust if you need to turn up or back depending on the light... this is especially helpful with video).

I really only have 3 complaints, and they are extremely minor.

1st) As with any filter, I would really like to see K&F either add a magnetic mount option or add a filter tool to make it easier to turn on and off. I know someone will say that the "putter" makes it easier, but I don't trust putting pressure on a free-floating multi-piece filter.

2nd) The case it comes in is different from the other Nano-X series cases. It's more of a leatherette type, whereas some of the others are more suede/denim style.

3rd) Threaded front element. I know some people will say, 'You NEVER stack filters!!! '. Yes, well, there are a large number of photographers who do.... if you don't want to, fine... but don't argue against any possible functionality.

It works amazingly well and does not interfere with the image I want to capture. So the "complaints" above are more of a wish list than anything else.

Definitely recommend.