I have a long history of shooting with special effects filters. I've used Cokin systems where you can share a filter with different lenses using adapters. I own over 50 such filters and lately I've been simplifying my camera bag and traveling with just a few filters. My favorite filters are the Graduated Neutral Density (ND) filters. With these, I can rotate the filter to my liking for each shot. BUT it means I have to wear more than a pair of the same ND filter but on different stops.

Solution: The K&F Concept magnetic variable ND filter gives me the opportunity to use a filter that covers 5 stops within seconds. This is a great time saver as my landscape or sunset shots sometimes require quick image setup and adjustment to rapid light changes.

ND filters are an investment in your camera gear. These filter out very bright light and enable the photographer to take longer exposures in daylight. My favorite use of ND filters is to make water movement look silky while still capturing the surroundings in detail. This K&F Concept filter is amazingly well built. The glass is better than my cokins. Because it's built for specific lens size diameters, I had to rationalize which lens I used most often and order that size. 58mm in this case.

The housing is a worthy vault for this filter. Kudos to the team that developed this feature. The magnetic ring screwed well into my existing lens. In fact it screwed in too tight, it took me 10 long minutes to unscrew it later.

The magic is in the magnet technology. Wow! It was instant on and instant off for the actual ND filter. Great. With that comes the fear of dropping the filter. I'm afraid a bump will loosen it, so I kept my hand on the lens the whole time. If you're in a stationary environment, you should be fine.

This lens filter is a great tool for many future vacation shots. Easy to carry and use.

Note that you cannot place a regular lens cap over the ND filter. A pity.

Overall, I love the new direction these ND filters are taking. There is less effort and more time is spent on actually capturing images. Try it. I recommend this variable ND filter. 4.5 stars.

with the variable ND filters you have significantly better setting options than with fixed ND sizes.
The picture is evenly darkened, at least I can't see any gradients in my pictures.

In principle I used it little and outside, with flash I don't know how it will work, but since it looks thin I hope that the tire will not come out because it is for a 10-20mm
lens. The presentation of K & F in its cardboard box, as in the photo, and in a good hard plastic circular case to protect the filter.
For me the value for money is EXCELLENT why 5*.

For me as a hobby clipper, this is a cheap alternative to dive into the world of ND filters. You should only make sure that you use the scale on the filter, otherwise there are strange holograms, which the low price makes up for. Value for money is great here in my opinion.

I bought a new lens. Of course, there had to be protection on it for safety.
I bought the k&f filter.
Top quality and top price.

There are reviews already commenting on how well they are doing so I won't repeat it just say it's a pleasure to take off and great quality. The ease of moving the ND filters mounted or not is great. Highly Recommended.

Granted you have to put the magnetic ring in the hood first, then the filter, but it connects to the magnet and since this lens has a handy little sliding door, I can adjust the variable ND filter... lol..

bought this K&F Concept 67mm Magnetic Lens Filter Kit. These filters work great and fit my new camera. quality looks good. It was a good choice!... It allows me to take water shots on bright sunny days. It's not a variable and it's too dark for these dark, dreary days. You need a different filter for that. The filter is well made and easy to thread onto my lenses. It also comes with a nice case for storing and carrying. Images appear clear and sharp with no vignetting like you might get with some filters. Great value for money, definitely worth the money I tried to add more than one photo for examples but couldn't. I'll try to edit and add more later. I am happy with this purchase.

Protect your lens without compromising the purity of your image! Good value for money. Well made packaging, even once mounted you will not remove them from your lens. I recommend it

Although it weighs tremendously like a spring treated even better than the other cheaper filters from the same brand, it's very thin and knurled for easy unscrewing and unscrewing. very satisfied