49mm Variable ND2-ND400 (9 Stop) Filter - Waterproof Scratch Resistant Nano-Xcel Series

5 84 84 Review(s) KF01.1458
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C$72.99 C$74.99 2% OFF
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Brand: K&F Concept
  • Free Shipping & 30-Day No Reason Return. K&F Concept ND Lens Filter is made of Japan-made top optical glass and can be adjusted 360 degrees. Waterproof and Scratch Resistant.
  • KF01.1458
  • SKU: KF01.1458
  • 72.99
Money back guarantee
30-day refund or replacement
30-day refund or replacement
Secure Payment
Multiple payment options
Multiple payment options
Features
  • * 【Import Optical Glass】This ND filter is made by importing Japanese AGC optical glass, a total of 28 multi-layer coatings, effectivly reducing reflection from the filter itself and glaring, ensuring high-quality image.
  • * 【Putter Design】This filter frame designed as a putter can help you accurately adjust the stop, for video shooting users can automatically adjust the stop via auxiliary tools, each stop from ND2 to ND400 be marked on the frame conveniently for 360-degree rotation to adjust the stop, multi-scene application.
  • * 【Hydrophobic & Scratch Resistant】 Both glass sides of K&F Concept ND filter with multi-layer hydrophobic, oil-proof, and scratch-resistant coating, protecting the nd filter from all round, suitable for an adventure using.
  • * 【No Vignetting】For the filter designed with an ultra-wide-angle design, the ultra-slim frame is only 7.4mm, supporting in 16mm telephoto and wide-angle lens no vignetting, due to the difference in lens type and focal length so this filter might be met dark"X" cross, this isn't the quality problem, it can disappear via rotating the filter.
  • * 【Note】This nd filter is compatible with all 49mm lenses. Please verify your camera's lens thread size before ordering. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "ø" (diameter) symbol. New and old packages are sent randomly
Brand Story
K&F Concept Variable ND2-ND400 Filters
K&F Concept Variable ND2-ND400 Filters
K&F Concept Variable ND2-ND400 Filters
K&F Concept Variable ND2-ND400 Filters
Q&A
Q1: How does ND2-400 work?
A1: Two sets of polarizers with high transparency are used to control the amount of light entering the lens through the filter.
Q2: Can the original lens cap be used for ND2-400?
A2: In order to prevent vignetting, the ND2-400 is designed with an ultra-wide angle structure. The front port diameter of the filter is one size larger than the original aperture of the lens, so the lens cap needs to be one size larger than the lens aperture. For example, the 77mm ND2-400 Need to use 82mm lens cap.
Q3: Does ND2-400 have a color cast?
A3: Due to the use of polarizing film to control the amount of light entering, color cast is a common phenomenon among all adjustable NDs on the market. KF relies on mature manufacturing technology and fine coating technology to minimize the polarization effect of the polarizing film.
Q4: Does ND2-400 have vignetting?
A4: Using Nikon Z 7 and Nikor 14-30mm Sline test, 14mm vignetting is not obvious, 16mm has no vignetting.
Q5: Does ND2-400 have a cross shadow?
A5: The maximum aperture of an ultra-wide-angle lens below 24mm will have a slight cross shadow in the 1-5 gear dimming. The longer the focal length used, the smaller the effect of the cross shadow. There will be obvious cross shadows and vignetting in the large gear of dimming. If you continue to rotate the shadows, the shadows will disappear naturally, which is a physical phenomenon and not a product problem.
Functions of ND2-400
Functions of ND2-400
1. Under the premise of ensuring the best iso and not changing the aperture, the shutter speed can be freely changed according to the desired effect
2. Under the premise of maintaining the same shutter speed, a large aperture exposure can be used to create a blurred background effect
3. Even with a shutter speed of 1/8000 sec, the maximum aperture of F1.4 or F1.2 may cause overexposure. In this case, the ND2-400 can easily eliminate overexposure and retain highlight details.
4. Adjustable ND has more applicable ranges and applicable scenarios. If you pursue the ultimate picture quality, it is recommended to choose a fixed value ND.
unique push rod design, easy to adjust
unique push rod design, easy to adjust
Filter pouch included
Filter pouch included
9 stops can be adjusted for different scenarios
9 stops can be adjusted for different scenarios
ND2-ND400 (9 Stops) Variable ND Filter
Comparison
Rating 84 reviews. 40 reviews. 0 reviews. 127 reviews. 48 reviews. 32 reviews.
Price C$74.99 C$72.99 C$76.99 C$61.99 C$58.99 C$50.99 C$95.99 C$76.99 C$90.99 C$78.99 C$96.99 C$67.99
Model KF01.1458 KF01.1846 KF01.1166 KF01.1319 KF01.1808 KF01.1447
Resolution
Light reduction effect 1 Second Switch/No X cross/Light reduction effect No X cross/Light reduction effect Remove glare/No X cross/ Light reduction effect Soft highlight/No X cross/Light reduction effect No X cross/Light reduction effect
zoom range
Video Shooting/Landscape Photograhy Video Shooting/Landscape Photograhy Video Shooting/Landscape Photograhy Video Shooting/ Landscape Photograhy Video Shooting/ Landscape& Potrait Photograhy Video Shooting/Landscape Photograhy
Screen
Nano-X series Nano-X series Nano-X series Nano-X series Nano-X series Nano-X series
light source
0.3 to 2.7(1 to 9 Stops) 0.3 to 1.5(1 to 5 Stops) 0.3 to 1.5(1 to 5 Stops) 0.3 to 1.5(1 to 5 Stops) 0.3 to 1.5(1 to 5 Stops) 0.9 to 2.1(3 to 7 Stops)
Filter Material
Japanese AGC Glass Japanese AGC Glass Japanese AGC Glass Japanese AGC Glass Japanese AGC Glass Japanese AGC Glass
Multi-Coating
28 28 28 28 28 28
waterproof
scratch-resistant
HD
Reviews (84)
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5
Surprising
I was afraid I would have problems being a variable ND with rare effects, and zero problems. Neither on the corners, nor at ND400, the truth is that a pleasant surprise for its price. It may have a little green tint, but with a correction of nothing in the Premiere I fixed it, between 5 and 10 points on the dye tab towards magenta and you're done. Highly recommended, you just need to have a cap like the ND2 and ND32 models that are the ones I usually use.
Surprising Surprising Surprising Surprising Surprising
20/05/2023
5
Excellent photographic performance and material care
I got to try this filter for my Sigma 17-50, and the result is really amazing. The product looks great in its really great quality packaging and easy to carry in your bag.
The photographic performance is at a high level at a low price. I find the tongue very interesting, it allows you to have better grip during work.
Excellent photographic performance and material care Excellent photographic performance and material care Excellent photographic performance and material care
18/05/2023
5
K&F Variable ND Filter Good Landscape Filter
I purchased the K&F Concept Variable ND Filter Neutral Density ND2-ND400 (9 stops) with Rotating Ring to be able to use a fast ND with different densities.
The packaging is very well done, solid and space-saving container. The glass filter is light and the ring to increase/decrease the density is smooth. It has no end stop lock.

To test it best I tried it with three different lenses on the Nikon D750 camera (full frame): 20mm, 35mm and 85mm.
- 20mm: in the photos taken with the filter there is no particular loss of sharpness, it introduces a slight hot dominant that can be easily solved in post-production. As far as the X-shape problem is concerned, it is quite marked using the filter beyond the marked ring. Instead, using it within the marked marking, the problem is little present. See image attached.
- 35mm: in the photos taken with the filter there is no particular loss of sharpness, it introduces a slight hot dominant that can be easily solved in post-production. As far as the problem is concerned, X-shape is not as marked as in the previous one, but there is a vignetting especially in the use with maximum effect. See image attached.
- 85mm: in the photos taken with the filter there is no particular loss of sharpness, it introduces a slight hot dominant that can be easily solved in post-production. As far as the X-shape and vignetting problem are concerned, they are not relevant. See image attached.

Optically, the filter is well made and provides excellent results, but I would have preferred a start and end run with lock in order to avoid possible mistakes. Also considering that K&F produces other types of filters but with magnetic connection, I think it could be a further plus for this filter.

The price/performance ratio is correct based on the performance provided.

I attach more photos of the packaging and two shots to the sea.
K&F Variable ND Filter Good Landscape Filter K&F Variable ND Filter Good Landscape Filter K&F Variable ND Filter Good Landscape Filter K&F Variable ND Filter Good Landscape Filter K&F Variable ND Filter Good Landscape Filter K&F Variable ND Filter Good Landscape Filter
16/05/2023
5
Love the versitality of this
I absolutely LOVE this filter. It stays on my zoom on my camera all the time!

The handle to change filter level is easy, the filtering itself looks great and lets you get that perfect shot without switching filters. We took a trip this weekend and this filter never left the lens. If you take pictures outdoors, do yourself a favor and pick this up. No fiddling with any filters in your bag. Just turn dial it in and go.
Love the versitality of this Love the versitality of this Love the versitality of this
14/05/2023
5
Superb Professional Filter
Very surprised by the quality of the filter, it's from the professional nothing to say. The materials are good and the glass super. The adjustment wheel is very smooth and makes it easy to change the density of the filter. No need to have 4 different filters. possibility to shoot video in full day at the largest aperture. I love it!
It also comes with its small carrying case which is very sturdy and makes it easy to carry without fear of scratching
Superb Professional Filter Superb Professional Filter
11/05/2023
5
ND2-400 K&F Concept 77mm filter
K&F Concept is synonymous with quality. I already had other filters in kit, albeit quite old and with several years of service behind me. By virtue of my imminent photographic journey, I decided to opt for something new, always relying on them. I will tell you in detail what, in my opinion, are the pros and cons of this new product of theirs.
First of all, the packaging is really great: the box is made of very strong cardboard, impossible even to fold, and then the magnetic opening is very pleasant. The filter is stored in a leatherette case with magnetic closure and not plastic, which gives the product a finish that we can call 'premium'. Inside, wrapped in a protective bag, the filter. It is a fairly heavy piece, already to the touch it gives a great impression. The body is made of aluminum, the glasses are of excellent finish. Very thin (and this is good because this reduces any loss of sharpness), waterproof and scratch-resistant. Very pleasant (and very useful!) the orange little thing you need to change the intensity of the filter itself: the only drawback is not having a limited stroke during rotation, but it's not a big deal, since the limitations ND2 and ND400 are indicated right on the end of the filter itself. In any case, the filter was built in such a way that, even if you go beyond the limits, the annoying 'X' shadow does not show up. For the time being, I had the opportunity to try it only in the city on a somewhat ugly day, in the coming days I hope to integrate this review of mine with other shots in the mountains.
Who is the filter addressed to? Surely for those who love landscape photography or for those who want to do long exhibitions in the city (remaining within the limits of 9 stops): of course, the product is not the cheapest on the market, but that's enough try it for a while to understand that it's worth every penny you spend. I'm not a photography
ND2-400 K&F Concept 77mm filter ND2-400 K&F Concept 77mm filter ND2-400 K&F Concept 77mm filter ND2-400 K&F Concept 77mm filter
10/05/2023
5
I feel satistecho about buying this filter
The filter is of good quality and fills the desired expectations.
07/05/2023
5
Works fine on my canon lens. I don't use ND's much but nice to have in my kit just in case
Works fine on my canon lens. I don't use ND's much but nice to have in my kit just in case especially now that I live in a much much brighter place. (sotuhwest more sun)
06/05/2023
5
A WOW! filter
This is a great product. The packaging is super and it sets onto the lens excellently. I love it!
05/05/2023
5
Nice
Nice product
04/05/2023
FAQs
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A
K&F Concept ND2-ND400 lens filter controls the amount of the light that enters into camera lens with two sets of polarizing glass of high transparency. 
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A
From 1-5 stops, there will be a slight X cross for lens under 24mm. An X cross will appear at the highest stop and can be removed by rotating the filter ring, which is a normal situation instead of a quality issue. 
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A
As K&F Concept ND2-ND400 filters adjusts the amount of light that can pass through with polarizing glass, a colour cast can't be avoided for all the variable ND filters on the market. However, K&F Concept variable ND filters are made by the best coating technology, which reduces the effect of the polarizing film on image color. *Based on our professional test, the colour cast of K&F Concept ND2-ND400 filters is around 290k while the industry standard is 500k. 
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A
To avoid dark corners, K&F Concept ND2-ND400 filters are designed in ultra-wide construction so the front side of the ND filter is one size larger than the camera lens. It is recommended to use a lens hood of a larger size. 
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A
First, K&F Concept ND2-ND400 lens filter allows changing shutter speed based on the effect you want with the best sensibility and the same aperture. Second, K&F Concept ND2-ND400 lens filter allows creating a blurred background with a large aperture while the shutter speed remains the same. Third, K&F Concept ND2-ND400 lens filter is designed to prevent overexposure and maintain image purity and quality at the same time. *Like a zoom lens, the variable nd filters are suitable for multiple shooting situations. If you're looking for perfect image quality, a fixed ND filter is recommended. 
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Video
Variable ND Filter ND2-ND400 (9 Stop) Lens Filter Waterproof Scratch Resistant Nano-X II Series
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Specification
Gimbal Stabilizers
Product 0.2%
Filter
Resolution Light reduction effect
zoom range Video Shooting/Landscape Photograhy
Screen Nano-X series
light source 0.3 to 2.7(1 to 9 Stops)
Filter Material Japanese AGC Glass
Multi-Coating 28
waterproof
scratch-resistant
HD