I've read mixed reviews on these. I bought it for a photo booth and found it worked well about I'll buy a second.
25/05/2019
Amazing packaging, comes with a protective case to carry it around in, and a cleaning cloth! The fade is nearly perfect with little to no vignetting.
20/05/2019
So this works pretty well. I have used it for a few things. If you don't know what you are doing with a variable ND I would not suggest it though. Because it doesn't have a stop, it can get crosshatching if you are not careful. If you just need something simple, this will do the job. If I were doing more professional level work at this time, I would not choose this one. Spend the money on the more professional products.
06/05/2019
First variable ND filter purchased (all others I have had have been static) and what a difference it makes!So easy to move around, and not having to carry more than one per lens is a real space-saver in the bag!I've experienced no false colour or the infamous X on any images (although I don't use this all the way closed!)Comparing it to a friends premium ND (I won't mention the brand), I could not see a difference at all in image quality. However, the premium ND was a bit stiffer to move around, so it felt like it would stay exactly where left. The K&F one does feel like it may loosen up over time, although this hasn't happened yet a few months in!
28/03/2019
Absolutely flawless build to it and I've gotten some amazing results thanks to this after a while of use. Just don't use it on the widest angle possible as you'll get a black X through the middle of your photo. I don't have a problem with it as I rarely go down to 18mm for a long exposure, and if I do, I'll use a 10-18mm lens instead.
04/03/2019
Bezels are different sizes, be wary.The 58mmbezel fits fime but the rotating bezel is larger, so you cannot fit a lens hood over it. Leaving no choice but to leave it off..making sunshine shooting very difficult.Also on the lumix g7/g80/gh5 you cant put the filter on after youve fitted the hood as theres no space ro turn it and screw it on.Bad design, the rotating bezel should be the same size as the 58mm bezel.Will be returnibg as not fit for purpose
01/02/2019
Very nice build quality with smooth turn and clear indicators, a must have if you film vedios outside with bright sun light.
27/01/2019
I can't use Hood with this. That's only problem but it works well.With it has numeric indicator
25/01/2019