KnF’s quality has really been top-notch. This is a beautifully optically clear massive 10 stop neutral density filter. This is as dark as it gets from what I know and it is perfect for taking long exposures during the day to capture lightning strikes or to get beautiful city scapes in the evening.

This thing is is optically perfect as any of the expensive German filters I own. The coating keeps moisture from beating on the front if you’re shooting in the rain, and they’re supposedly scratch resistant but I hope never to try that out.

I own several of this company‘s filters now and I’ve been extraordinarily pleased with all of them. The build quality is as good as my German ones and you can tell how well they’re made by the eaves at which the filters thread onto the lens. Absolutely beautiful. And they come with high-quality cases as well.

The only thing this company can do better would be to go back in time when I was spending 300 bucks per filter and offer their goods back then.

KnF’s quality has really been top-notch. This is a beautifully optically clear massive 10 stop neutral density filter. This is as dark as it gets from what I know and it is perfect for taking long exposures during the day to capture lightning strikes or to get beautiful city scapes in the evening.

This thing is is optically perfect as any of the expensive German filters I own. The coating keeps moisture from beating on the front if you’re shooting in the rain, and they’re supposedly scratch resistant but I hope never to try that out.

I own several of this company‘s filters now and I’ve been extraordinarily pleased with all of them. The build quality is as good as my German ones and you can tell how well they’re made by the eaves at which the filters thread onto the lens. Absolutely beautiful. And they come with high-quality cases as well.

The only thing this company can do better would be to go back in time when I was spending 300 bucks per filter and offer their goods back then.

I was offered this filter for testing and, of course, took advantage of the opportunity.

I've been doing photography and nature photography for over 2 decades now, which is why I've already used a few filters.

These types of filters, i.e. gray filters or black filters, are used to increase the exposure time during the day.
A longer exposure time is used, for example, to make the flow of liquids softer, the same applies to cloud movements under changing lighting conditions or, as I often use, during thunderstorms during the day, to photograph lightning.

Of course, there are also much cheaper filters, but these usually have a blue tinge or falsify the color rendering or influence the depth of field.

In turn, there are also much more expensive filters.
If you use high-quality filter systems, for example, the filter glasses can cost twice as much as this filter here.
However, these are then not objectively dependent (scope). These are then inserted into a frame that is attached to the respective lens.
However, this makes the application a bit more complex and if such a window breaks during use or transport, it is extremely annoying.

This filter here is simply free of criticism when it comes to photography. I really can't make a point of criticism, but that should also be the case with the price.
It can be easily unscrewed and unscrewed, has no blue tinge or other color irritations and the depth of field is also perfect.

The package also includes a leather case with magnetic closure and a microfiber cleaning cloth.
As a little gimmick, you can convert the packaging into a small photo frame by attaching an enclosed piece of cardboard to the back.

Visually, haptically and technically, this filter does not allow any points of criticism and the yet impressive price is reasonable in this case, when considering market competition.

That's why I give this high-quality filter 5 stars.

I was offered this filter for testing and, of course, took advantage of the opportunity.

I've been doing photography and nature photography for over 2 decades now, which is why I've already used a few filters.

These types of filters, i.e. gray filters or black filters, are used to increase the exposure time during the day.
A longer exposure time is used, for example, to make the flow of liquids softer, the same applies to cloud movements under changing lighting conditions or, as I often use, during thunderstorms during the day, to photograph lightning.

Of course, there are also much cheaper filters, but these usually have a blue tinge or falsify the color rendering or influence the depth of field.

In turn, there are also much more expensive filters.
If you use high-quality filter systems, for example, the filter glasses can cost twice as much as this filter here.
However, these are then not objectively dependent (scope). These are then inserted into a frame that is attached to the respective lens.
However, this makes the application a bit more complex and if such a window breaks during use or transport, it is extremely annoying.

This filter here is simply free of criticism when it comes to photography. I really can't make a point of criticism, but that should also be the case with the price.
It can be easily unscrewed and unscrewed, has no blue tinge or other color irritations and the depth of field is also perfect.

The package also includes a leather case with magnetic closure and a microfiber cleaning cloth.
As a little gimmick, you can convert the packaging into a small photo frame by attaching an enclosed piece of cardboard to the back.

Visually, haptically and technically, this filter does not allow any points of criticism and the yet impressive price is reasonable in this case, when considering market competition.

That's why I give this high-quality filter 5 stars.

Photo accessories and photo equipment are one thing, but a professional appearance is also part of it. The German website does not have a proper legal notice, which is required by law?!? This should be improved immediately. Consumers expect that a brand/company has a soul and is tangible!

What remains is an impeccable product of the highest quality, perhaps not quite as perfect as original accessories, but good to very good quality at a fair price. The neutral density filter is easy to handle and the images are taken with balanced exposure, which I would not have expected otherwise from this brand. Here and there, of course, you have to reprocess images using software, which is also completely normal and in the green zone. Overall, I'm relatively satisfied, so a solid four stars.

Photo accessories and photo equipment are one thing, but a professional appearance is also part of it. The German website does not have a proper legal notice, which is required by law?!? This should be improved immediately. Consumers expect that a brand/company has a soul and is tangible!

What remains is an impeccable product of the highest quality, perhaps not quite as perfect as original accessories, but good to very good quality at a fair price. The neutral density filter is easy to handle and the images are taken with balanced exposure, which I would not have expected otherwise from this brand. Here and there, of course, you have to reprocess images using software, which is also completely normal and in the green zone. Overall, I'm relatively satisfied, so a solid four stars.

K&F Concept Nano-X PRO series ND1000 filter 67mm neutral density filter (10 Stop)

From packaging to the finished image, everything at the highest level. The quality and workmanship of the filter is top top top. It can be gently screwed into the lens thread without being misunderstood. The image results were convincing and I was unable to find any negative effects. (color fringes or similar) My A7III has ~ 9 stops. But there is always a certain amount of leeway here.

How do you rate the price of such a filter? I think people with photographic experience know how much such a high-quality filter costs. I think the price is quite reasonable for the high-quality and very well-made filter.

K&F Concept Nano-X PRO series ND1000 filter 67mm neutral density filter (10 Stop)

From packaging to the finished image, everything at the highest level. The quality and workmanship of the filter is top top top. It can be gently screwed into the lens thread without being misunderstood. The image results were convincing and I was unable to find any negative effects. (color fringes or similar) My A7III has ~ 9 stops. But there is always a certain amount of leeway here.

How do you rate the price of such a filter? I think people with photographic experience know how much such a high-quality filter costs. I think the price is quite reasonable for the high-quality and very well-made filter.

K&F been making some serious magic lately with their filters. This is third or fourth from them and this is yet another winner. VNDs are cool, but it's nothing like having an ND to pair with a CPL for photography to get their intended benefits. For this filter in particular, long exposures, especially of rivers and other bodies of water is so easy and so much fun. The filter is quality. Build is beautiful and robust. This is a "buy now, cry now" meaning that it may cost more than others in its category, but you buy it once and it's going to last you the entirety of your career. That's how well this thing is built. It's got some weight to it too and I don't mind that one bit because it all plays into how well it's constructed. This is a great filter that doesn't discolor your images and preserves the quality in detail. Great filter.

K&F been making some serious magic lately with their filters. This is third or fourth from them and this is yet another winner. VNDs are cool, but it's nothing like having an ND to pair with a CPL for photography to get their intended benefits. For this filter in particular, long exposures, especially of rivers and other bodies of water is so easy and so much fun. The filter is quality. Build is beautiful and robust. This is a "buy now, cry now" meaning that it may cost more than others in its category, but you buy it once and it's going to last you the entirety of your career. That's how well this thing is built. It's got some weight to it too and I don't mind that one bit because it all plays into how well it's constructed. This is a great filter that doesn't discolor your images and preserves the quality in detail. Great filter.