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49mm Ultra Slim Variable ND Filter Adjustable ND2-ND400 with Lens Cleaning Cloth

4.7 111 Review(s) SKU0690
A$22.99 A$45.98
&FREE Shipping to Australia
  • Brand: K&F Concept
  • 49mm Filter, Adjustable ND2-ND400 Filter, Ultra Slim Variable ND Filter, ND2-ND400
  • SKU0690
  • SKU: SKU0690
  • 22.99
Buy 2+ items get 10% off !
  • * Wider outer optic to help reduce vignetting at wide angles
  • * Made of high quality optical glass by K&F Concept technology
  • * Neutral density can be adjusted from ND2 to ND400.Reduces the amount of light reaching the film without affecting the color.
  • * Suitable for dynamic screen, waterfalls, streams, waves, etc.
  • * Brand of K&F Concept manufactured by a professional team,12 Month Manufacturer Warranty,100% Satisfaction Guaranteed.
Reduces the amount of light entering the lens, thus decreasing camera shutter speed. Useful for situations where motion blur needs to be created (rivers, waterfalls, moving people) or large apertures must be used with flash to avoid overexposure.
Without ND Filter
Use Contrast
With ND Filter
Without ND Filter
With ND Filter
Enables slow shutter speeds to be used to record movement in subjects such as waterfalls, providing a silky smooth affect to flowing water.
Without ND Filter
With ND Filter
Without ND Filter
With ND Filter
No Filter
Multiple layer nanometer coating
Reduction of reflection
Scratch Resistant
Nanometer Coating
Enables slow shutter speeds to be used to record movement in subjects such as waterfalls, providing a silky smooth affect to flowing water.
NDnumber Optical density f-stop reduction Fractional transmittance
  0 0 100%
ND2 0.3 1 50%
ND4 0.6 2 25%
ND8 0.9 3 12.50%
ND16 1.2 4 6.25%
ND32 1.50 5 3.13%
ND64 1.8 6 1.56%
ND100 2 623 1%
ND128 2.1 7 0.78%
ND256 2.4 8 0.39%
ND400 2.6 823 0.25%
ND512 2.7 9 0.20%
ND1024/ND1000 3 10 0.10%
ND2000 3.3 11 0.05%
ND4000 3.6 12 0.025%
ND8000 3.9 13 0.0125%
ND32000 4.5 15 0.003%
Reviews (111)
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Super useful, excellent product
Very easy to use, looks very good material. I love the result. Playing with the white balance you can get much better result. I have tested with ISO 100 f / 1.8 and 1/125 sec. when the sun does not let see anything in the camera, and this has allowed me to put it totally dark and also in a desired tone.
Super useful, excellent product Super useful, excellent product Super useful, excellent product Super useful, excellent product
Awesome; Must have for video
I had a smaller diameter of this product for a different lens, so when I got my new lens the first thing I bought was this ND filter. It is incredible. And this one had little dots along the edge, as well as text that read "Min" and "Max". This was super helpful. My only complaint about the smaller ones was that you couldn't tell how far was the maximum and minimum, and this model has solved that issue. I don't go anywhere without this filter. I will be buying a K&F Variable ND filter for every lens that I get from now on.
Awesome; Must have for video Awesome; Must have for video Awesome; Must have for video Awesome; Must have for video
Game Changer
First image no ND Filter, Second image with ND filter, Last image in Post shot At/With Canon Eos Rebel Sl2EF50MM F/1.8 STMISO 800 50MM F1.8 1/60SECspeaks for itself game changerwhere has this been all my life
Game Changer Game Changer Game Changer
Works as intended
Bought this in combination to be used with my Sirui 50mm Anamorphic lens. It works well and I don't too much chromatic aberrations. The color rendition is nice and it definitely allows me to keep my aperture wide open at 1.8 during bright conditions. The Sirui 50mm Anamorphic lens is quite sharp wide open, and using the variable ND with this lens creates magic.
I definitely recommend this lens for ANYONE that needs a quality ND filter for their lenses. I wish it came with a lens cap - or at least a universal one. The original lens cap, doesn't quite fit in this filter.
Works as intended Works as intended Works as intended
Spectacular filter for the price!
I almost gave up on trying to invest in an ND filter because I wasn't ready to spend $200 or more on some waterfall shots. Came across this one and LOVED it. Took it on my trip to Italy, and it provided some phenomenal shots in full daylight. It worked great with both 30-second exposures of waterfalls and also when I just needed it to block out the haze from the rising sun at the top of St. Peter's Basilica. Sure, there might be a shadow around the edges, but the overall quality of the photos that this provides is well worth it.
Spectacular filter for the price! Spectacular filter for the price!

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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. 
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. 
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. 
Tested with Nikon Z 7 and Nikor 14-30mm Sline, dark corners are not obvious for 14mm and no dark corners for 16mm. 
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. 
ND2 to ND400 Variable Neutral Density ND Filter
size 49mm
Filter Material Optical glass
Filter Thickness 7.0mm
Shape Circle
Ring Material Aviation aluminum alloy