The filter comes very well packaged in a nice magnetic closure box. The actual storage takes place in a high-quality leather case with an “ejection tape” so that you don't have to tap your fingers into the filter disc when removing it.
The filter and its mechanism are manufactured to a high quality, meaning that the filter thread can be easily screwed in without rubbing noises and frequent attempts to fix it and, after tightening, can be removed again with moderate force, provided that the inner thread of the lens is not damaged.
The special feature of this (ND) filter, however, is of course the ability to infinitely adjust the filter degree/strength using the screw-on brass handles, which also works very smoothly and impressively! For example, changing the filter is largely unnecessary, just a grip on the rotating ring is enough and you continue to dim or flash on accordingly. The range in which the filter effect can be changed is enormous - this saves a few filters and allows fine and easy adjustment until the desired effect is achieved!
Even though it doesn't quite come close to the Pro series, you still get a very high-quality filter and, with the variability offered, a very fair offer!
The filter and its mechanism are manufactured to a high quality, meaning that the filter thread can be easily screwed in without rubbing noises and frequent attempts to fix it and, after tightening, can be removed again with moderate force, provided that the inner thread of the lens is not damaged.
The special feature of this (ND) filter, however, is of course the ability to infinitely adjust the filter degree/strength using the screw-on brass handles, which also works very smoothly and impressively! For example, changing the filter is largely unnecessary, just a grip on the rotating ring is enough and you continue to dim or flash on accordingly. The range in which the filter effect can be changed is enormous - this saves a few filters and allows fine and easy adjustment until the desired effect is achieved!
Even though it doesn't quite come close to the Pro series, you still get a very high-quality filter and, with the variability offered, a very fair offer!
29/02/2024
I had been using a cheap variable ND filter for years and when I recently upgraded to this the difference was immediately obvious. This ND filter does an excellent job not making dark spots around the edges of your video. I am using this on my Canon M50.
28/02/2024
Use the filter for filming if you are traveling a bit more compact without a matte box on the front of your optics — after a few weeks I can only say that the K&F filter is doing really well!
✅ No X-pattern at high ND values
✅ No obtrusive color cast visible in video material
✅ Practical transport bag with magnetic closure
✅ Filter runs pleasantly smoothly and is easy to use
... Of course, the higher-quality K&F Nano-X Pro or NISI True Color ND works better, especially when it comes to coatings, but then costs more accordingly. From a price/performance perspective, there is really nothing to complain about the K&F Concept Nano-X!
✅ No X-pattern at high ND values
✅ No obtrusive color cast visible in video material
✅ Practical transport bag with magnetic closure
✅ Filter runs pleasantly smoothly and is easy to use
... Of course, the higher-quality K&F Nano-X Pro or NISI True Color ND works better, especially when it comes to coatings, but then costs more accordingly. From a price/performance perspective, there is really nothing to complain about the K&F Concept Nano-X!
28/02/2024
I got this for my Lumix FZ80 and am very happy with it. I like that you can adjust it from 1-5 stops. It feels very sturdy and well made.
27/02/2024
In contrast to classic ND filters, the intensity of this filter can be adjusted in a range of 2-32. This is done by turning the filter; for this purpose, there is a small nup on the filter, which can be used as a 'handle'. Clever.
It comes with a high-quality case.
The filter doesn't run smoothly. If it were this, it would be difficult to set and, in the best case, maintain the desired filter effect. So: There is always something.
Overall, the filter is quite heavy due to the bonus function. Personally, I wouldn't use a filter for a single f-stop, it's actually not worth it.
However, I find it good to remain flexible when setting the effect.
Top workmanship, color distortion 0. All good.
It comes with a high-quality case.
The filter doesn't run smoothly. If it were this, it would be difficult to set and, in the best case, maintain the desired filter effect. So: There is always something.
Overall, the filter is quite heavy due to the bonus function. Personally, I wouldn't use a filter for a single f-stop, it's actually not worth it.
However, I find it good to remain flexible when setting the effect.
Top workmanship, color distortion 0. All good.
16/02/2024
This filter is perfect for mirrorless, digital cameras. It is infinitely adjustable from ND2 to ND32 and the camera follows in real time as you view it.
I used this filter with enthusiasm for detailed photography in bright sunlight and wide aperture, thus reducing the brightness.
The workmanship and appearance of the material is excellent, and I have nothing to complain about when it comes to the adjustment mechanism that other reviewers write about.
With mit, he now regularly sits on my 18-55 Fujinon and in front of my Fuji XT-20 for exemption when open aperture.
I'm thrilled.
5 stars for an inexpensive product in the sense of the word!
I used this filter with enthusiasm for detailed photography in bright sunlight and wide aperture, thus reducing the brightness.
The workmanship and appearance of the material is excellent, and I have nothing to complain about when it comes to the adjustment mechanism that other reviewers write about.
With mit, he now regularly sits on my 18-55 Fujinon and in front of my Fuji XT-20 for exemption when open aperture.
I'm thrilled.
5 stars for an inexpensive product in the sense of the word!
15/02/2024
The filter can be selected directly for a lens or used with adapter rings. I chose the former because I don't find the constant changing ideal and I only need the filter of this type for one lens. With this variable filter, you can cover several f-stops. I'm happy with the quality. The material looks high-quality, the thread is precise and I also find the glass excellent.
The product fits the description, I am satisfied with the quality and can recommend this variable ND filter.
The product fits the description, I am satisfied with the quality and can recommend this variable ND filter.
14/02/2024
The K&F Concept filter arrives safely packaged here. A dust cloth and a storage bag are included.
The workmanship of the filter is really first-class. High-quality materials, great handling, perfect shape and not too heavy on the lens or in the hand.
The filter is simply attached to the lens using a rotating mechanism.
The filter conjures up wonderful images that you no longer have to rework.
The price is certainly a deterrent for now - but in my opinion, this is one of the best filters on the market. Professionals MUST strike, amateur photographers CAN strike without hesitation
The workmanship of the filter is really first-class. High-quality materials, great handling, perfect shape and not too heavy on the lens or in the hand.
The filter is simply attached to the lens using a rotating mechanism.
The filter conjures up wonderful images that you no longer have to rework.
The price is certainly a deterrent for now - but in my opinion, this is one of the best filters on the market. Professionals MUST strike, amateur photographers CAN strike without hesitation
13/02/2024
Use the 72mm version on a Sigma SD 14, fits perfectly and saves me many different darkening filters. A really great thing, I didn't even know that something like that existed. I used to have 4 different neutral density filters, which I could now put all of them out of my pocket. Sounds like a lot of money at first, but I only calculate the expenses of my 4 filters against it... oh oh I would have been much better off here. Now I can! infinitely variable! adapt to all lighting conditions, a dream come true.
12/02/2024
Quality: +++++
Workmanship: +++++
Compactness/Size: +++++
Application: +++++
Glass quality: +++++
Stability/Robust: +++++
Flexibility: +++++
Functionality: +++++
Perfect fit: +++++
Price/Performance: ++++
This screw-on filter ensures that you can reduce the light for taking photos. This results in a longer exposure time, which can be used well for certain situations.
We have now tested this filter a few times and so far we are quite satisfied with the results achieved.
It does or should achieve what the filter does or should achieve. This makes it easy to blur or let waterfalls, streams or moving clouds flow. Or you can also use such a filter quite well here in areas that are very busy with people. With a long exposure, you can easily make people disappear from the photos who are in motion.
But you can definitely recommend it. Nice effects, no color changes visible (bluish, purple, etc.).
The K&F Concept coating technology gives the filter a very low reflectivity, which ensures good light transmission, reduces stray light and ghosting, prevents glare and does not affect the original lens performance.
A really well made filter.
The nano coating is waterproof, dirt-proof and scratch-resistant and therefore ensures excellent durability of the filter.
The workmanship, design and quality look very high-quality and very well made, and the filter glass texture also makes an extremely positive, scratch-free impression.
The variable ND filter reduces light by up to f-stops, meaning ND2-32 (1-5 stop), which causes no color cast and no loss of image quality.
On the subject of autofocus and filters:
The autofocus continues to work well with the Sony A7 Mark 2 or the Sony 6500 combined with various lenses, although this decreases a bit. Here you simply have to switch to manual focus.
Overall, a really well-made filter, with the advantage that it is easy to install compared to rectangular filters, which require a rectangular filter attachment.
This filter arrives in a neatly made box, in which it can be stored safely and well.
So far, this filter has convinced us without any objections, so it is a clear recommendation.
We put a lot of effort into writing our reviews and invest a lot of time. In doing so, we address positive as well as negative aspects of the product in order to clarify everything before buying. Who likes bad surprises? So not us. Therefore, we hope that our review was useful and was able to help. Let us know Thank you in advance... Best
regards
Workmanship: +++++
Compactness/Size: +++++
Application: +++++
Glass quality: +++++
Stability/Robust: +++++
Flexibility: +++++
Functionality: +++++
Perfect fit: +++++
Price/Performance: ++++
This screw-on filter ensures that you can reduce the light for taking photos. This results in a longer exposure time, which can be used well for certain situations.
We have now tested this filter a few times and so far we are quite satisfied with the results achieved.
It does or should achieve what the filter does or should achieve. This makes it easy to blur or let waterfalls, streams or moving clouds flow. Or you can also use such a filter quite well here in areas that are very busy with people. With a long exposure, you can easily make people disappear from the photos who are in motion.
But you can definitely recommend it. Nice effects, no color changes visible (bluish, purple, etc.).
The K&F Concept coating technology gives the filter a very low reflectivity, which ensures good light transmission, reduces stray light and ghosting, prevents glare and does not affect the original lens performance.
A really well made filter.
The nano coating is waterproof, dirt-proof and scratch-resistant and therefore ensures excellent durability of the filter.
The workmanship, design and quality look very high-quality and very well made, and the filter glass texture also makes an extremely positive, scratch-free impression.
The variable ND filter reduces light by up to f-stops, meaning ND2-32 (1-5 stop), which causes no color cast and no loss of image quality.
On the subject of autofocus and filters:
The autofocus continues to work well with the Sony A7 Mark 2 or the Sony 6500 combined with various lenses, although this decreases a bit. Here you simply have to switch to manual focus.
Overall, a really well-made filter, with the advantage that it is easy to install compared to rectangular filters, which require a rectangular filter attachment.
This filter arrives in a neatly made box, in which it can be stored safely and well.
So far, this filter has convinced us without any objections, so it is a clear recommendation.
We put a lot of effort into writing our reviews and invest a lot of time. In doing so, we address positive as well as negative aspects of the product in order to clarify everything before buying. Who likes bad surprises? So not us. Therefore, we hope that our review was useful and was able to help. Let us know Thank you in advance... Best
regards
05/11/2023