Includes: case, and filter.
Tested with my nikon kit lens. (see my sample photos)
Each Top photo was taken on a tripod with a 10 second timer.
Each Bottom photo, the black mist pro filter was added.
This really does work as the name suggests!
Side by side you can see the colors and focus in the original without filter.
Then after applying the filter to the front of the lens,
you get a black mist. This calms down the color saturation and the sharpness.
Just a small amount.

The case.
Top twists off from the bottom and is made of a smoked plastic. The edges have a nice groove set.
Makes opening and closing easy. Branding on top.
The bottom is made of the same plastic and has the same grooves on the side.
The highlight is the 2 gray silicone pads that are glued down inside.
(These grooves will hold you filter) You could also use with smaller and larger filters.
That's a plus.

The filter.
Is slim line and made of aluminum.
Sides have really nice grooves, makes using the filter very smooth.
Great glass. Actually scratch resistant.
Took out my keys and hey no scratches. Thumbs up.
Waterproof.
Filter weighs only .5 ounces. Both the case and filter weight 2.7 ounces.

Overall very pleased with the filter.
Great quality.
I picked up the 52mm version.
Used 2 of my kit lens and no issues. Very smooth to install and remove from lens.
Easy to clean. Should last a very long time.

I prefer to shoot with filters verse going into software and spending extra time to get a similar effect.
Hope this was helpful.

Finally a filter that gives softness to my images without neglecting the details. It also corrects small imperfections on close-ups without detracting from image quality.

Very good!

I use this for street photography, portraits and car photography, great dream-like effects and any glaring light turns into a soft glow.

Amazing filter for night street photography in nicely lit situations. Street signs, lights, etc. Add a very nice soft glow to your images. During the day, it's add a soft cinematic touch.

Not on my lens 100% of the time but a very nice filter to have in your bag.

Was a perfect fit for my Nikon Z50! A must have for any camera to protect your lens and make it easier to clean. Found the price very competitive compared to similar filters.

Great quality and always fairly priced.

I like that it created a subtle effect on my picture taken, like a light mist. The diffusion filter fits perfectly on my Sony Aii lenses.

Super happy that I found this and saved money since I was originally going to buy the tiffen filter. It’s worked well for me and I’m super happy with the results it provides!

K&F makes some of the finest UV Filters for the price. The ring also includes grooves so you can take off the filter easily. I would definitely recommend it to people who have expensive lenses and want a peace of mind.