KV33 55mm ND2-ND400 (9 Stops) Variable ND Filter Neutral Density Filter for Camera Lens Ultra-Slim, Multi Coated
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$29.99
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Brand: K&F Concept
Description
- * 【Variable ND Filter】K&F CONCEPT ND2-400 Filter reduce the light from 1 to 9 f-stops.
- * 【Material】Made by Completed Professional Optical Glasses, with double-side multilayer blue coating to help repel water.
- * 【Exposure Reduction】ND filters are good for rivers, waterfalls, and other bodies of water, especially under bright light. The longer exposure times allows for smoother water movements, shallower depth of field, and blurred motion.
- * 【Ultra-Slim】The filter frame is only 7.3mm, and super lightweight CNC ring used in construction prevents adverse effect
- * 【Note】This Filter kit is compatible with all 37mm 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.
Unsure your lens size ? check here
$29.99
Shipping
To United States Expedited Free Shipping 3-5 business days
Sale
Buy 2 get 5% off, Buy 3 get 10% off, buy 6 get 20% off



• Reduces the amount of light reaching the lens without affecting the color.
• The K&F ND Filter Multi Resistance Coating (MRC) helps repel water, dust & grease, while also preventing ghosting.
• Applies slow shutter speed under strong sunlight exposure.
• Glass mounted with high-pressure press technology.
• Made of import AGC optical glass by K&F Concept technology.
• Wider outer optic to help reduce vignetting at wide angles.
• Extinction paint Seiko manufacturing, to achieve the testing sights on the military standard.
• The K&F ND Filter Multi Resistance Coating (MRC) helps repel water, dust & grease, while also preventing ghosting.
• Applies slow shutter speed under strong sunlight exposure.
• Glass mounted with high-pressure press technology.
• Made of import AGC optical glass by K&F Concept technology.
• Wider outer optic to help reduce vignetting at wide angles.
• Extinction paint Seiko manufacturing, to achieve the testing sights on the military standard.

18 Multi-Layer Coatings

1-9 Stops Variable

CNC-non Slip Frame


Comparison
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Rating | 20 reviews. | 23 reviews. | 0 reviews. | 1 reviews. | 35 reviews. | 20 reviews. |
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Price | $29.99 | $54.99 | $37.99 | $35.99 | $42.99 | $45.99 |
Model | KF01.1387 | KF01.1460 | KF01.1832 | KF01.1268 | KF01.1167 | KF01.1075 |
Reflectivity |
0.6% | 0.2% | 0.4% | 0.4% | 0.2% | 0.2% |
Size |
55mm | 55mm | 55mm | 58mm | ||
Series |
Nano-K series | Nano-X series | Nano-D series | Nano-D series | Nano-X series | Nano-X series |
Recommended Scenes |
Video Shooting/Landscape Photography | Video Shooting/Landscape Photography | Video Shooting/Landscape Photography | Video Shooting/Landscape Photography | Video Shooting/Landscape Photography | Video Shooting/Landscape Photography |
Function |
Light reduction effect | Light reduction effect | Light reduction effect | Light reduction effect | No X cross/Light reduction effect | No X cross/Light reduction effect |
Stops |
0.3 to 2.7(1 to 9 Stops) | 0.3 to 2.7(1 to 9 Stops) | 0.45 to 3.0(1.5 to 10 Stops) | 0.9 to 3.0(3 to 11 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 |
18 layers | 28 layers | 24 layers | 24 layers | 28 layers | 28 layers |
Waterproof |
/ | √ | √ | √ | √ | √ |
scratch-resistant |
/ | √ | / | / | √ | √ |
HD |
/ | √ | √ | √ | √ | √ |
Transmittance |
∕ | ∕ | ∕ | ∕ | ||
Antireflection |
√ | √ | √ | |||
Filter Thickness |
7.0mm | 7.0mm | 7.3mm | 7.3mm | ||
Ring Material |
Aviation aluminum alloy | Aviation aluminum alloy | Aviation aluminum alloy | Aviation aluminum alloy |
Reviews (20)
Just like it was described
Love this
27/11/2021
Nd 67 mm
Very good
23/11/2021
Way to dramatic photography
Initially I was skeptical about buying this expensive filter but still gave it a shot. The results are amazing, specially when you use a flash, the background gets dark and the pictures look dramatic. Needless to say that it will work great for long exposure shots too.
17/11/2021
Will buy again.
This Nd filter is awesome
13/11/2021
Wonderful for the price
Looks almost as good as more expensive solutions. There is a little bit of banding but it is not noticeable unless you are capturing a very bright or high-contrast scene.
30/10/2021
Great replacement for lens caps
Best cheap functional lens cap
26/10/2021
Great filter for cinematic video
Gives great versatility to video shot on Moment lenses. Saves a ton of time and lets me focus on the action and story.
24/10/2021
Follow the directions
As long as you use it as intended and you aren't going passed the stops on the side,You don't end up with that cross mark you see in the videos. I've definitely been able to get the desired smooth water shots with my shutter speed at less than 2.
15/10/2021
It is exactly how it was described
I use the filter mostly for my Galaxy Note 9. The filter is just perfect and made a huge difference on my photos. I am very amazed with the clarity of my photos. It is a good buy.
07/10/2021
Cost effective/quick means to the same end
I had researched the qualities and capabilities of an ND filter. What I did not like was that each 'level' of ND effect were a separate lens and to buy a range of them would cost money and add bulk to your camera bag. When I found this variable ND filter, at a reasonable price, I ordered it. I like that, with one lens, I can change the density quickly by a simple rotation of the lens. Where as, if I had a set of ND filters, I would have to guess what effect I wanted, select a lens from the set, screw it on and hopefully not miss my shot. True, for a tripod set up and all the time in the world, you could try different lenses and compose your shot but most of my work is wildlife and at-the-moment shot. A great addition to my camera bag.
01/10/2021
FAQs
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.
A
Tested with Nikon Z 7 and Nikor 14-30mm Sline, dark corners are not obvious for 14mm and no dark corners for 16mm.
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.
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.
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.
Video
K&F KV33 ND Fader Variable Neutral Density Filter ND2 to ND400 for Camera Lens Ultra-Slim
Do You Know How Your K&F Concept Filters be Produced? | One-day Tour in Production Line
How to check your lens size
Specification
Filter | |
---|---|
Reflectivity | 0.6% |
Size | 55mm |
Series | Nano-K series |
Recommended Scenes | Video Shooting/Landscape Photography |
Function | Light reduction effect |
Stops | 0.3 to 2.7(1 to 9 Stops) |
Filter Material | Japanese AGC Glass |
Multi-Coating | 18 layers |
Waterproof | / |
scratch-resistant | / |
HD | / |
Transmittance | ∕ |
Antireflection | |
Pattern | |
Filter Thickness | 7.0mm |
Shape | Circle |
Ring Material | Aviation aluminum alloy |
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