bought this product and as always super fast delivery; the next day and in less than 24 hours I had it at home. The first thing that caught my attention was the good presentation of the product. It is presented in a hard case and is padded on the inside so that both the filter and the filter holder are well protected. The build material of the filter holder and adapter rings (includes many lens diameters, which is welcome) gives a feeling of good quality and durability. The filter is correctly clamped with the plastic grooves, and the filter is securely fastened without the risk of falling. The filter is made of optical glass and transmits very good sensations. Comes with a stylish leather case and instruction manual and has no seal to prevent light from slipping between the glass and holder and there is no glare in the photo. However, the holder has a velvet felt that performs this function, so there is no problem. The photo shown is a camera test with no processing adjustments, where you can see that the filter does not vignette or leave any color dominants in the image. It doesn't strip away the quality and sharpness either, so the material it's built on is good. The ten light levels are ideal for long exposures in broad daylight. Considering what is described, it is a good product with good value for money, both for the optical characteristics of the filter and for the large number of accessories that it includes.

took the ND64 and the ND8. Water-resistant optical glass, no dominants, body and quality packaging. If you spend 3 times as much on other brands, as far as I'm concerned, you're throwing your money away. The filter is great.

what you get for your money - optical glass (harder than resin), no distortion, no color cast = perfect filter!

K&F has been making some really fantastic filters lately. The build quality of these devices is excellent. Precision machined brass rings thin enough not to interfere with the image but strong enough to protect your glass. They screw on very easily and the brass prevents unplugging and threading. The optical quality of the glass is excellent. There is no distortion whatsoever and the nebula filter gives your images a very subtle, dreamlike quality. In my opinion something that is really impossible in Photoshop or with digital editing. You get the realism and quality of a real optical effect and these look absolutely gorgeous. Some people may disagree, but I always prefer to do as much as possible in camera to avoid post-processing. And for videos, this is of course a time saver. Applying this subtle fog effect digitally to video is very processor intensive. This is a neat little way to soften facial features a bit for portraits, and I decided to take a portrait of this little guy. You can really see the difference around the eyes that the filter makes, in addition to the fact that it was very bright and this filter helped soften the shadows. This is a 1/4 crap so the effect is very subtle. Don't let the Black Diffusion name confuse you. This filter brightens your images by reducing contrast and softening highlights. It actually brightens the image up a bit, but in a way that doesn't blur. That's the beauty of real optical filters and not digital post-processing effects. This compares to my German filters, which I have paid a lot more money for in the past.

The filters are well made so far, the filter glass is flawless and the magnetic ring is cleanly finished.
The optical performance of the filters is good fa there is nothing to complain about, the polarizing filter is essential for car photography and is therefore almost always mounted on my camera.

This graduated filter does its job really well. With water and dirt repellent optical glass, it only requires some attention when handling, but not because of the color dominance in the photos. I think the overall cost is adequate compared to the others which are mostly resin.

Excellent, I think they are the best filters on the market, they do not dominate, they are well made in optical glass, very durable, the quality is at the highest level. Fast and accurate delivery. The filter is excellent and will not make you regret other famous brands. The packaging is highly professional. I thank you.

Excellent ND graduated filter, all optical glass and coated on both sides.
I already had it and bought it again to refill. Absolutely to recommend. One of those pinned in my pocket. The filters surprised me, they are a completely different thing. The good quality filter works very well to create fantastic images.