Excellent product! Better processing quality than my Tiffen and no nasty color cast.

I use a Fujifilm X-T3 camera and got this to go with my 55 - 200mm zoom lens. The mounting ring attaches to the lens without issue and I am a big fan of the magnetic attachment for this filter. There are many different brands of diffusion filters out there. I have used Tiffen brand filters in the past and always been happy with them but when I came across the K&F filters I definitely wanted to give them a try.

I have used K&F products in the past and have been particularly happy with their lens adapter system (I used to shoot with Pentax cameras and lenses and their superb lens adapter has allowed me to use my old Pentax lenses with my Fujifilm camera.

This magnetic system does not disappoint. Swapping filters is super easy with the magnetic attachment system. The lens cap for the filter system has been criticized by some but I find it to work very well. It actually reminds me of some of the lens caps from my Pentax system so I felt very comfortable with it.

As for the quality of the diffusion - excellent! I really enjoy the softer look that this diffusion supplies without it bein too heavy-handed.

I was a bit surprised by one thing however. I expected to be able to install this filter system and then still utilize my tulip-shaped lens hood but I cannot do that when this K&F is attached to my lens. To be honest, I wouldn't be surprised if this is really the fault of the Fujifilm system as I have found their lens hoods difficult to attach compared to other camera systems I have used in the past. That said, I intend to get some more K&F brand ND filters to take full advantage of this magnetic attachment system. It's a winner in my book.

I experimented with this diffusion filter. It softens the shadows. I can see where this filter would be useful for portraits. I don't have as many uses for it, but it was fun to experiment with. I had never tried magnetic filters. The package came with an adapter ring, the filter and a cover for the filter It was easy to install the ring, filter and cover. They stayed in place and when I was not using the filter, I could easily remove it to shoot.

The issue was with the adapter ring. I could not remove it nor could anyone else. I even used a rubber jar opener pad. So I contacted customer service. They worked with me, but nothing I did could budge the adapter ring. Because this prevented me from putting my own CPL filter back on, the company sent me a magnetic cpl filter for my troubles. Top notch customer service!

I have a Black Mist Pro 1/8 filter that I use quite a bit, but wanted to try a 1/4 for a more pronouced "bloom" in connection with a dream sequence I was shooting. I saw the K&F 1/4 black diffusion filter for about 20% less than the cost of a Black Mist Pro, so I thought I would give it a try. I've used K&F filters before and have always been pleased with them, even though they are perceived by some "pros" as lower-quality filters. I'm happy to say that the K&F 1/4 black diffuser is every bit as good as the Black Mist Pro equivalent, achieving exactly the effect I was after with no distortion or color cast. And if you take into consideration the magnetic docking system, I would say it's even better than the Black Mist Pro filter (this is the first magnetic filter I have used, and I'm hooked). The price to value ratio for this filer is excellent.

Works very well. Diffusion looks nice and not super strong and my lens cap fits on top.

I took some fantastic pictures of my grandkids with this K+F 1/4 (67mm) Diffusion filter. Ok, they are my grandkids and incredibly beautiful and photogenic, but this filter really made the pictures pop. It softened their skin and actually revealed more detail. I use a Nikon 750 with a Nikon 85mm 1.8 lens. Normally, I use a B+W F-Pro filter, which is really bright. Most of the pictures I shot with the K+F diffusion filter on top of the B+W filter. It is incredibly to attach the K+F filter. You just screw in the ring and pop in the filter. The latter attaches magnetically, but it's a pretty firm attachment. The filter comes with a lens cover that is also magnetically attached, but not so firmly. I noticed it tends to detach when the camera is jostled a bit in my camera bag. That's my only reservation about this filter. I also took off the B+W filter and used the K+F as the only filter on the camera. It works fine, but I prefer using both: I like the effect and I am also incredibly lazy. The good news is that even with two filters there was no vignetting.

I've always been of the opinion that photo filters and lenses are expensive, though I recognize that good glass and coatings aren't cheap. This filter, though...the results are magical. Golden and blue hour photos take on soft mystical qualities, fairy lights turn into will-o-wisps rather than bokeh, skin imperfections are evened out somewhat, and it does a better job than my old soft-focus filter which tended to lighten shadows too much. It's THE filter I reach for if I'm trying to create a fantasy atmosphere, and can make even a photo of a garden gnome look plausible.

I love the way this has the magnetic ring mount, though I'm sad that most of my other filters are screw-in and therefore can't swap easily with this. Perhaps someday I'll be able to get more; my filter stack was mostly built in the early 2000s and could use a few upgrades. This one's worth every penny of its list price for the results.

perfect !

Great little filter made specifically for Cinematic effect.
I'm a professional photographer. I had written a rather lengthy 5 star review, but it was rejected for reasons I am not aware of. I recommend this filter if you are looking to soften the visual impact of your photos and video.

I have the K&F magnetic system on all of my lenses, and got several of the matching ND and CPL filters in addition to the black mist one here. They're so convenient, easily stackable and the connection is strong enough that I don't have to fear that one of them could fall off. The black mist effect here is very minor, and only really noticeable with plenty of backlighting. Many cheaper filters often have a color cast, but I haven't noticed that with the K&F ones at all.

The only downside is that on my Sony lenses at least the magnetic caps that are included are really hard to pull off when you have the lens hood on the lens (either forwards or backwards). Some grippy element at the front of the cap would've helped with that. I might 3d print some holder and glue that on there to fix it. Since the caps aren't really the main reason to use a magnetic filter system though I'm still giving 5 stars, they would've been a nice bonus if they worked well but they're not really critical to the product.