K&F XV37 49mm Variable ND2 to ND32 Filter NO X Spot Multiple Layer Nano Coated
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K&F XV37 49mm Variable ND2 to ND32 Filter NO X Spot Multiple Layer Nano Coated
Features
- • 【Material】 ND Filter: Made by Completed Professional Optical Glasses instead of Optical Resin. filter reduces the intake of light without affecting the overall color balance.
- • 【No “X” cross on images】Say goodbye to the "X" cross on images, K&F utilize cutting edge technology you're going to say goodbye to this common issue with wide angle lenses and variable ND filters.
- • 【NANOTEC】Our optical engineers developed new Nano coating layer technology， Waterproof, scratch-resistant, anti-reflective green coating, effectively prevent from oil, fingerprint, scratch, protect valued lens.
- • 【Professional Design】Ultra slim rim design preventing wide angle vignetting. Extra tough aviation aluminum frame ensuring durability and jamming prevention.
- • 【NOTE】This Filter kit is compatible with all 49mm lenses. Please verify your camera's lens thread size(usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering. The number is always preceded by a "ø" (diameter) symbol.
Frequently Bought Together
ND FILTER
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.
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 ND
ND8
ND64
ND1000
No Filter
ND2
ND4
ND8
ND16
ND32
Multiple layer
nanometer coating
Reduction of reflection
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.
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 | 62⁄3 | 1% | |
| ND128 | 2.1 | 7 | 0.78% | |
| ND256 | 2.4 | 8 | 0.39% | |
| ND400 | 2.6 | 82⁄3 | 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% | |
Good overall for the price
It worked well I haven't tested it at the full ND setting because I haven't needed go yet
Outer threading size not listed in the description...K&F took care of me.
Not knowing that most, if not all, variable ND filters have different size threading on the exterior side of the filter, I asked for a solution to my concern. K&F promptly contacted me and provided a more than satisfactory solution.Thank you! Great products (this K&F ND filter and my other K&F polarizing filter) and great customer service.
Quality is key.
It doesn’t fade as dark as those cheaper 10x-400x ones (this is 2x-40x), but it fades well enough for photographic needs and there are NO artifacts or aspheric distortions.Quality is key.
Well made
Have no issues and does what it needs to. Seems like good quality so far
Buy it!!
Used it for my 28mmf2. Works well for video!!!
| Filter | |
|---|---|
| size | 49mm |
| Transmittance | ∕ |
| Multi-Coating | |
| Antireflection | √ |
| waterproof | √ |
| scratch-resistant | √ |
| HD | √ |
| Filter Material | Optical glass |
| Pattern | √ |
| Filter Thickness | 7.3mm |
| Shape | Circle |
| Ring Material | Aviation aluminum alloy |
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