like the effect this filter has on videos. This tends to soften the shadows without losing detail and makes the scenes appear a bit more cohesive. The 1/4 filter offers a good balance, enough to get the blurring effect without being too obvious. However, the lighting you use with this filter has a big impact on the result. The build quality of the K&F filters is fantastic for the price. The threads are well cut and don't snag at all, even on the larger size. Overall I am very happy with this filter.

I have this 57mm Sigma lens for my Fujifilm X-T30 and I am super happy with the results. The effect is subtle, but that's exactly what I wanted to achieve with the pen.

This filter creates such a beautiful, subtle difference that any filmmaker will appreciate. It's not big and over the top. If you show it to your non-camera friends, they probably won't even notice the difference, but you will definitely notice a difference in your footage. It makes the highlights bloom so beautifully and makes for such a pleasing look without introducing any unwanted color casts to the image. Likewise, the build quality of this filter is great and I appreciate the little grooves on the sides of the filter that allow me to grip it more easily when putting it on and taking it off. Overall I'm very happy with it and would definitely recommend it.

have a lot of K&F filters - a lot of filters in general - and this one is of good quality and has a solid plastic body. 1/4 is understated, maybe too understated for some things and that's why I've never bought one. For that reason, I could imagine using this more often.

There is always a more expensive and beautiful filter. I like the K&F filters. For the price range they make nice filters and not just offer a filter that is over the top. I like stacking these kinds of filters to get what I want. I'm getting more and more picky about my shots over time and I'm just a beginner.

K&F Concepts does it again! See the video for more information. 1/4 is the perfect filter for that dreamy look. Not too much and not too little. It's spot on. This filter gives your films a clear video look and gives them a nice shine. It also emphasizes and softens the black tones. Great filter... I love it.

I rarely look for a blurry effect in my shots, I prefer to create images with sharp and effective contrasts.

Nevertheless, I like to experiment and recently had the opportunity to try a 1/1 black fog filter, which, however, as I had imagined, achieved an overly accentuated effect that I could only use for very special projects.

When I saw the K&F Concept's 1/4 filter, I decided to try that one too, to see if it could be more versatile with its less pronounced effect and stray less from my style.

I will not go into technical explanations any further. It's a filter that creates a fog effect, reduces highlights and reduces glare, giving a blurred result that helps smooth out skin imperfections in portraits.

Personally, I don't like this blur effect in portraits because I think it looks "fake". To reduce imperfections, I prefer to use light modifiers (softboxes, umbrellas, diffusers, etc.) or use advanced techniques in post-production.

In any case, as you can imagine, since it's a 1/1 filter, the effect is less pronounced than a 1/1 filter. If that's what you want, that's fine.

Personally, I find this type of filter more interesting for other purposes, for example to create halos around the lights or to give a certain dreamy and vintage effect to videos in which I think they do their best.

From a construction point of view, this filter isn't bad: it has optical glass with a multi-layer nanometer coating on both sides that controls glare and protects against oils and scratches.

The aluminum alloy structure makes it light and threading is quite well done.

Obviously the overall quality doesn't match that of professional filters, but neither does the price!

I therefore consider it a good buy for amateur photographers and for those who, like me, do not often look for this type of effect and use it from time to time. In these cases, it would not make sense to invest in products from more expensive brands!

My overall rating is 4 well deserved stars!

K&F Concept 1/4 Black Mist Diffusion 67MM Filter

Super cool filter, well made and good quality. The filter can be screwed on cleanly and sits perfectly on my Tamron's 28 75 and 70 180 2.8. The effect is really cool and in combination with the Aputure Accent B7C, Hollywood says hello.

I think the filter is really cool and you can let your creativity run free. The price is also great and super fair.

It uses soft colors and creates cinematic effects. I also bought the soft one and I love it. 100% recommended.

This is a diffusion filter for 67 mm filter diameter lenses. The filter is very special in its own way.
If the exposure is correct, you get an interesting picture in many situations. Almost dreamy and foggy. In this way, completely different moods can be captured. Both as a video and as a photo.
However, you have to keep in mind that the image is slightly less sharp as a result. But that just fits the look.
The filter itself is well made and of good quality.
I also think the price is reasonable.