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.

For some time now, brands like K&F have been making quality filters accessible to a growing number of users. Previously, filters of this caliber required an investment of two to three times more. Now, you can get them at a price that, while not cheap, is much more reasonable without sacrificing quality.

The first thing you notice upon receiving it is the build quality, with a metal frame and glass that doesn't feel fragile. The filter has a good weight, neither too heavy to unbalance the lens nor so light that it feels cheap. The 36 layers of nano coating aren't just a marketing term; when working in challenging conditions such as backlighting or nighttime scenes with many light sources, the low reflectivity (specified at 0.15%) is immediately noticeable, eliminating those annoying ghosting effects that ruin so many shots.

I've conducted several tests comparing this filter with similar effects in post-production, and the difference is substantial. The effect it achieves on the skin is soft and natural, blurring imperfections without looking artificial—something that's very difficult to replicate in post-production. And consider the number of hours you save.

The 1/8 effect is subtle but definitely noticeable, ideal for those seeking that cinematic touch without overdoing it. Intense highlights acquire a soft halo that adds character to the image, and skin tones appear more even without losing texture. In video, it's especially useful for creating that film look that's so sought after these days. However, it's important to keep in mind that it's not the right filter for every situation; in landscape or architectural photography where the goal is to capture maximum detail, this filter can reduce sharpness, albeit very subtly.

The thread fits lenses perfectly, without getting stuck or loose, which facilitates quick changes between shots. The price may seem high compared to other options on the market, but after trying cheaper filters that generated unwanted color casts or uneven effects, it's a worthwhile investment for the consistency and quality of the results.

When I first took the 77mm Black Mist filter from K&F Concept out of the box, I was immediately surprised by the high-quality feel of the brass threads. I already use several ND filters and chargers from this manufacturer – and have had little to complain about so far. The price of €135.99 (as of August 2025) isn't insignificant, but it piqued my interest. I was able to try it out through the Amazon Vine program, which suited me perfectly.

First Impressions and Mounting
The filter screwed smoothly and easily onto my manual video lenses, whether for the GH6 or the Blackmagic Pocket Cinema Camera 4K. The CNC-machined threads fit snugly; there's no play whatsoever. This is a detail I've experienced differently with other manufacturers, where there's sometimes a slight amount of play.

The Black Mist function isn't just marketing hype; it's genuinely noticeable: highlights acquire this soft, almost dreamy haze without the image becoming milky. Skin looks more natural, and minor imperfections are subtly minimized. This effect proved particularly pleasing when filming in the old town at night – with its lanterns, shop windows, and neon signs. Initially, I was concerned it might look too kitschy, but after a few test clips, it was clear: the look is cinematic, not artificial.

Thanks to the ultra-low reflectivity of the multi-nano coating, I was able to work even in strong backlighting without those unsightly double reflections I'm familiar with from older filters. On the other hand, those who prefer razor-sharp, sterile images might find the slightly diffused look distracting. When shooting extremely detailed landscapes, I briefly questioned whether the filter was the right tool for the job.

Feeling and Benefits
The most wonderful experience was a short shoot in a light drizzle: the raindrops simply beaded up and rolled off, giving the image that soft, almost analog film look I've been trying to recreate in post-production for years. Here, the filter saved me time – and, frankly, a lot of frustration.

My personal review:
A high-quality filter for specific looks, which particularly shines in video and portrait photography. Those who primarily work in documentary or technical fields will need it less, but it's an exciting tool for creative work with light. For me, it remains perfect – not for every shot, but for those moments when the image could use a touch of magic.

I ordered the Neewer 82mm Black Mist 1/8 filter for my Nikon lens and I think it's well-made. The filter fits perfectly, and the housing around the glass is made of brass.

I also appreciate that the filter comes in a slim, sturdy storage box and case. This makes it easy to store and transport safely. The box can also be used as a picture frame, which I think is a great, modern, and stylish idea.

But back to the main point. With the filter, background lights appear slightly more diffused and have a subtle glow. This creates an atmospheric effect, which I really like. I mainly use the filter for portraits.

I'm very happy with my new lens accessory and I enjoy using it. It deserves five stars.