best product

variable density ND filters are not the best when compared to fixed density but are very convenient to use and a compromise needs to be done, just like when using prime or a zoom lens. But just like the gap between zooms and prime has become narrower, the gap between variable ND filters and fixed ones has become smaller and I am very pleased with this filter. I always buy 82mm and then use filter step up rings for my smaller diameter lenses. Recommended.

Absolutely great quality

This is one amazing filter. So well made with quality through out. It's an awesome unboxing experience as well, they pack this thing so nicely. Even comes with a high quality leather storage case, very nice touch. I picked this up to use on my GoPro enclosure and it screws on perfectly and works perfectly.

My daughter is really into photography and she kept saying, "how do they do that?!". She opened and close it in amazement. We've caulked it up to magic. Seriously though, it does transition very well and it's very amazing how much of a range this filter has.

My one very slight negative, i wish it came with some kind of protective cap, to keep the filter from getting scratched. I'd be happy to pay extra for it, but I can't find there they sell just a cap for this or their other filters. A cap would make this absolutely perfect. Guess it's more a "wish".

Could not be happier, love it and gladly recommend!

watch the video.
set all camera settings to manual Mode and NOT auto Mode,
if you don't the Variable ND2 is Not going to work good as it should.
best built filter i see so far,
thank you

It was a pleasant surprise that the diffusion retains so much sharpness. It creates very attractive, smoothed-out highlights without compromising detail elsewhere. The built-in variable ND filter is a nice convenience for video, and it has no defects that I've noticed

I took a picture of the sun with this and was super impressed. The quality of it is awesome. The ease of use is fantastic.

This went right on my lens without issue, and it was so obvious how valuable this was right out of the gate. Now I can take pictures of super bright stuff and retain the data.

The picture I took of the sun looked like a perfect circle from far away, but up close? You could see the little wavy heat patterns around it. Just fantastic.

Perfect for portraits in the outdoors. It softens imperfections and skin tones. No blotchy red patches, fewer wrinkles, etc.
I call my 85 mm my “magic” lens because it makes everyone look better when getting their picture taken. This adds another layer of “softness”. Not blur, softness.
I am still experimenting with various K&F filters but so far, I love everyone I have tried. They are making me a better photographer and bringing back the passion for photography that I thought I was losing.
I am thrilled with this filter and all of the filters from K&F that I have tried.
If you love photography, or just want to be a bit better at it, give the K&F filters a try.
Experiment. Let your imagination out to play.

A solid variable ND filter. The filter is machined really well and the overall fit and finish is excellent. The orange anodized tab looks really good and adds a nice aesthetic in addition to aiding in adjustment. The dial is smooth enough to not unscrew from the lens but is firm enough to not drift once it is set in place. All of the shots I used the ND filter on confirmed the filter is good for between 1 and 5 stops and I never got any weird patterns with any of the settings. There is a slight color cast that leans toward blueish which is similar to every other ND filter I have ever used but it is easily fixed in post. Spring can be unpredictable and it can be a huge pain to swap filters between clouds a variable ND filter is convenient as well as cutting down on the number of pieces to bring shooting.

The pouch/holder is nicely made but bulky. A more compact hards case would be preferable but it is anice add-on at this price point. Sometimes I wish the filter had some kind of click or stop at the different stops but overall it's not a huge issue. It would be nice to preset the stop in this way, but not a deal breaker.

Overall the picture quality is good and the K&F ND filter is a solid buy at the price point. It has less color shift than other cheaper filters and work the investment.

A lot of quality