• 21.99
Overall Rating 5   102
5
Note that this review is for the full 1 grade black diffusion filter from K&F Concept K series (Nano-K).

The 67mm circular filter is lightweight, made of aluminum that is precisely machined so that the rim fits perfectly. I was able to twist this onto the front of my Sigma 16mm lens smoothly. This is nice, with low reflection and anti-glaring. There is no detectable vignetting and it gives a softer edged "dreamy" cinema effect to shots.

Packed in a nice plastic, protective case and three microfiber cleaning cloths are included. This is a great addition to any photography toolkit.
08/02/2025
5
This is a good quality filter that does what it says. The diffusion effect of the 1/8 strength is minimal but does what I wanted it to do; take the edge of the digital files a bit. The effect is subtle but noticeable. For a more pronounced effect I use the 1/4 strength.

I keep one of these filters on most of my lenses for daily use. I also combine this filter with other filters (nd filters) and it works just fine.

For daily use, the 1/8 strength is perfect, but for a noticeable effect, the 1/4 strength is needed in most situations.
08/02/2025
5
Crystal clear glass giving my pocket 6k pro and sigma lens combo the closet look to the Arri without the hefty cost! Love it, wish I had invested in these sooner.
08/02/2025
5
I got this with the intention of creating a halation effect on my images. I LOVE how these look.
Take your images to the next level Take your images to the next level Take your images to the next level
07/02/2025
5
I didn't notice any color. Changing, it was an amazing price and it stays on whatever stop you leave it on. No X pattern and I didn't see any quality loss.
Perfect!
07/02/2025
5
I impressed about the quality of the filter. It looks so good and bloom perfectly 10 out of 10
Love it
07/02/2025
5
I got the 77mm one for my zoom lens and although it does work and softens the image a little, I don't know how much I will use it. Its more for portraits so I got another one for my 50mm lens which makes more sense. Its a nice filter, good quality and comes in a nice plastic case which is really nice. Good quality and at a decent price.
07/02/2025
5
This threaded easily onto my lens. It does produce a softened effect to images, which will be good in select applications and lighting situations. Although a similar effect could be achieved in lightroom in post-processing, this allows the ability to produce these effects straight out of the camera.

It feels solid and well made.

If you're looking for this effect, this filter is a good choice to achieve it.
07/02/2025
5
Had never “dreamed” of buying a diffusion filter and all I can say my initial testing. Loving the look and never thought it would be something I’d use and look at things in such a different way.
07/02/2025
5
Softens just a bit. Good quality construction, great price.
07/02/2025