Bought for long exposure works well so far
The first impression was positive, the packaging including the plastic case already protected the filter during transport to me.
The plastic case makes a stable impression and has a simple yet stable-looking fastener, so that you can stow it loosely in the camera backpack.

The setting aid is marked (non-linear) and has two end stops. The first attempts with the filter were quite okay, when the weather is better I'll try the next river or in the city and will update the results if necessary.

Similar to the expensive Pro-Mist filters, this gives videos and photos a more cinematic glow as it adds a slight haze to the image. The filter gives the highlights a fog-like effect without sacrificing sharpness and also smooths out skin tones. Overall nice filter that fits and protects the camera and is best to have than use a cheap UV filter. The glass won't stick to oil or fingerprints, so you don't have to keep wiping it down.

I have worked with K&F Concept filters in the past and generally had good experiences with them. These are good, medium quality filters at (usually) a reasonable price. I haven't worked with Black Pro Mist black filters before this one so I don't have a base to compare to but so far it seems to be working as planned and appears to be very well done.

In short, this type of filter softens the light a bit, creating gentle halos around light sources without sacrificing image sharpness or detail. Where I've seen the most striking effect is in images where there would otherwise be a lot of shadows and contrasts. Instead of strong contrast and strong shadows, the filter has the effect of lightening the shadows a bit and creating smoother gradients. Sure, this can be done in software after the fact, but it's a lot easier to do it at the time the picture is taken, and it's certainly a lot less work.

The filter is very easy to install. This is my first magnetic filter and it attaches to my camera as easily as I had hoped. The threaded ring attaches to the lens in the same manner as a step ring or other filter, and the filter itself simply snaps securely into place due to the magnets. Removing the filter is just as easy, especially if you want to leave the magnetic ring on the lens.

The assembly seems to be well done. I've had filters in the past that were poorly constructed and rattled into the frame when shaken, were slightly marred, or just felt cheap. This filter has none of these issues and appears to be well made.

This is a beautiful black Black Pro Mist filter. It's easy to install and use, and just works. I will be using it more in the coming weeks.

I really like the soft light it creates in videos. It is especially noticeable in "color lights". Made everything more dreamy and cinematic, especially at night.

Overall very happy with the filter. Great quality. I bought the 52mm version. Used 2 of my kit lenses and no problems. Very easy to install and remove from the lens. Easy to clean. Should last a very long time.