This filter really produces a fantastic dreamy effect that looks very cinematic. Build quality is excellent, it's beautifully machined from metal and the glass is thick and exudes quality. I'm using this mainly with stills but the effect looks so good I may start practicing my videography more. The threads are very smooth and it attached perfectly to my step-up adapter. It came with a really nice storage case too which was an unexpected but welcome bonus. Overall, this is a high quality filter that produces a fantastic effect and I'd recommend it to anyone looking for a more cinematic look to their stills and video.

So I just want to say right off the bat that I am a huge fan of K&f concept products. I've been doing photography for about 12 years or so and over the years I've gathered quite the plethora of photography and videography pieces of equipment and I have a lot of vintage filters that I really enjoy but for new digital stuff K&f concept are one of my favorite filters that I own. I actually have a lot of their entry level ones and also a few of their higher-end ones and this thing is absolutely phenomenal. The fit is spot on and these things slide on smooth as butter and it's very high in filter. The image clarity is amazing and the plethora of different effects that they have our top notch. Overall the functionality and ease of use of this one for the cool effects that it adds is awesome. Have gotten into doing Cinema style shots over the years and this thing is a must. The color accuracy is very spot on and also the look I'm going for is very spot on to what I'm going for. Overall 100% I say grab one of these if you're looking for a black diffusion. This filter is absolutely phenomenal. The materials they make these things out of our Top Notch and machine to perfection and the glass they use is top notch with very good Coatings and you can't really go wrong with these. They are a bit on the price of your side compared to some of the entry level stuff floating around on eBay and Amazon but they're 100% worth of money. Now if all you can afford is some of the cheaper entry level stuff I say go for that also because when I started out I only started out with some very very cheap gear and produce some very phenomenal results but just like a lot of people starting out I used to judge my own work very harshly but it made me strive to become better and better and now that I look back on some of the work I did when I started out it was actually extremely good and some of those pictures were once in a lifetime moments. Overall pretty much anything from these guys I highly recommend and if it's not too much more to save up for this it is 100% worth it

The K&F Concept 67mm Black Diffusion 1/8 mist filter looks and feels well made. Screws on very well on my Sony lens. Great product for the money.

The K&F 1/8 Black Diffusion filter is fantastic for video, adding just the right amount of softness for that cinematic look. I already own the 1/4 version and use that for photography to smooth portraits, but the 1/8 strength feels perfect for video—it’s subtle, natural, and doesn’t overdo it.

Build quality is excellent, with a sturdy brass frame and multi-layer coatings that make it durable and easy to keep clean. It also comes with a well-made case to protect it from scratches. While I wish the MSRP was a bit lower, the quality and performance make this filter absolutely worth it. A beautifully made filter that delivers exactly as promised.

We are at a point with digital photography/videography where image quality is almost too crisp and detailed. Black mist filters help soften the image a bit and come in numbered (fraction) values in terms of how much diffusion they provide. This filter is on the low end of the diffusion scale at 1/8", it is about the minimum value that is perceptible to the human eye. Black mist filters are best for portrait and night photography. K&F has become my go to brand when looking for filters and this bit of kit is at the top of their line of quality filters. K&F have filters at just about every price point but this offering is at the top of their line. You can tell by the packaging that this is one of their best and it carries a price point along with that. If you are a professional photographer/videographer this is a black mist filter you should consider, if you are passionate about your hobby this set will appeal to you as well.

Compared to the 1/4 black mist, I prefer this one. The effect is much more subtle, while still adding to the overall feel of the image. It helps to cut back some of the highlights. The filter came packaged really nicely and professionally. It was sized perfectly for my len's 82mm filter size. The threads are good on it, and didn't notice an issue taking it on and off.

K&F Concepts XPRO Black Mist filter is, indeed, exceptionally well made. It feels great in the hand, with nice grips and a sense that its threads will hold up over time and use. The sharpness is excellent and there's almost no loss of light. The exposure you'd use without a filter is the exact same as with the XPRO. The blooming effect is very subtle, which is what you'd expect at 1/8th. There's also no shift in hue or tint-- though you have to be careful not to have the camera on Auto White Balance because it will interpret any blooming or diffraction of different colored light as affecting the entire image, causing it to shift color temperature in Auto. My one niggle is that I hate the case. It's too big for a 77mm filter so it bangs around inside, and the soft center doesn't feel protective. I wish they'd gone with a hard shell.

My wife regularly uses the K&F Concept Black Mist 1/8 filter on her camera, primarily for portraits and video. She wanted a filter that would soften the image without completely sacrificing sharpness – and this one does exactly that.

The effect is subtle yet noticeable: skin appears smoother, and highlights gain a soft, cinematic glow. This is especially beautiful in evening or indoor lighting – the image instantly gains more atmosphere. The effect is a bit more subtle for landscapes, but even there, the filter adds a pleasing depth and a slightly analog feel.

As you'd expect from K&F, the build quality is first-rate. The brass threads are smooth, nothing jams, and the nano-coating provides excellent protection against fingerprints and water. The filter comes in a sturdy box with a nice carrying case – practical for those who travel frequently.

Overall, a high-quality effect filter for creative work with light and portraits. Not a permanent filter for every subject, but perfect when you want to give your image a touch of "cinematic" quality.

The K&F Concept Black Mist 67mm effect filter makes an impression right from the start: The black and gold packaging is a statement from the manufacturer – elegant, substantial, and thoughtfully designed. The box can even be repurposed as a picture frame – a charming, if somewhat over-the-top, detail. Included are a shrink-wrapped cleaning cloth and a high-quality, stitched protective case with a magnetic leather cover. The presentation conveys a premium feel – and the filter itself lives up to this promise.

In practice, the Black Mist delivers a wonderfully subtle soft focus. Highlights are surrounded by a fine, almost filmic shimmer, without the image appearing muddy or losing contrast. Unlike many cheaper effect filters, the look remains understated and elegant – only noticeable where it's used for artistic purposes, such as in skin tones or backlit situations.

Of course, the filter isn't an all-rounder: The effect is too subtle for everyday subjects or documentary work. But anyone who likes to play with lighting, enhance portraits, or add a touch of cinematic flair to nighttime scenes will love it.

In short: Elegant packaging, excellent craftsmanship, and a subtle, professional effect – a filter for photographers with a keen eye for nuance.

Just like many other products from K&F Concept this one is of be of great value and the Black Mist 1/8 filter is no exception.
I got the 77 mm version and paired with my trusty Nikkor Z 24-120 F/4.
The manufacturing quality is at such a high quality that you don't have to think twice when ordering: brass socket, strong thread, no wobbling whatsoever. Unscrewing and unscrewing is as smooth as butter, every single time.
As for the filter itself, its effects are immediately noticeable: it reduces the sharpness from digital cameras, reduces skin blemishes and gives highlights that subtle, cinematic glow. Except for edge situations, when the lights are overly bright or coming from certain angles, there are no image degradations when using this filter. No reflections between the filter and the lens' front element.