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XV37 40.5mm Fader ND Filter Neutral Density Variable Filter ND2 to ND32 for Camera Lens NO X Spot,Nanotec,Ultra-Slim,Weather-Sealed

5 31 Review(s) KF01.1163
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$37.04 $81.49 54% OFF
Free shipping to eligible country
  • Brand: K&F Concept
  • Free Shipping. 30 Day No Reason Return. K&F ND2~ND32 lens filters feature Professional Optical Glasses, No “X” cross on images, advanced NANOTEC coating, Professional Design.
  • KF01.1163
  • SKU: KF01.1163
  • 37.04
Description
  • * 【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.For this 40.5mm ND filter,the lens cap/hood should be 43mm. Because of the update of the product's package, the new and the old version will be sent randomly.
  • * 【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 40.5mm 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.

Unsure your lens size ? check here

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.
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
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 (31)
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5
Overall very good quality for the price!
Product: 58mm Variable ND2-ND32

Description: The rim of the filter is made out of what I'd assume is aluminum, coated matte black, (which has a nice weight to it, and has hard stops at ND2 & ND32). The rim itself is actually fairly nice. It's easy to put on, and easy to take off due to the wide ridged design around the base of the filter. The high index optical glass is indeed nano coated to protect against water/oils from fingerprints, rain, & etc. Which are easily removed without struggle in my testing with a clean micro fiber cloth (not included). The glass itself has a slight yellow tint to it (which you can see from the photo comparison), which can also easily be corrected through your cameras auto white balance, or lightroom. The filter also doesn't loose to much detail if adjusted properly which is nice as you will see from the photos, and their description in the next section.

Photos: The first four photos of the product were taken without any filters. Though the next two of the black & red mouse pad were to show detail comparisons. These two photos were taken about 1-2ft away, but are cropped to show detail. Which were slighty adjusted to be as equal as possible.
Without the filter: F4.0 1/15s. ISO 400
ND32: F4.0 1s ISO 400

The next 6 photos of the flowers next to the bird bath were taken without adjusting any settings to show the darkness of the filter (F5.6 1/320s ISO 100), in this order: No Filter, ND2 1st, 2nd, 3rd, 4th, & ND32 5th stop.

Overall: The produce works well, and is well made! I would highly recommend picking one of these up, along with a circular polarizer. Though only notable things I found with the product is that it has a slight yellow tint of the filter, the front thread size of the filter in bigger then 58mm, and the top of the filter very slightly wiggles. Otherwise it gets a solid A from me!

Extra: I used a 49mm-58mm step up ring for the filter to fit my Canon 50mm F/1.8

Camera/Settings: Shot on a Canon Rebel SL3, with custom white balance settings set to +/-0,+/-0 for raw color quality.
Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price! Overall very good quality for the price!
26/05/2020
5
Great photos, must have accessory for exposure photography
Got into photography recently and always wanted to take exposure shots but was unable to do it without this filter after doing some research online. It screws on top of the lens protector and I can even mount my lens cap on top of it.

Like the fact that it is adjustable to whatever kind of photos I want to take depending on time of day and sun's position. I took a 2 second exposure shot of Niagara falls and it turned out well. I also added a still photo for comparison.

Will be doing more exposure shots I keep getting better every day after trial and error, must buy if you are into exposure photography you will not regret this purchase.
Great photos, must have accessory for exposure photography Great photos, must have accessory for exposure photography Great photos, must have accessory for exposure photography Great photos, must have accessory for exposure photography Great photos, must have accessory for exposure photography
17/08/2021
5
Must buy ND Filter for Video!
I use the anamorphic lens by Moment and FilmicPro to make movies using my iPhone. The 62mm K&F filter is very important to get that filmic look when I am shooting at 24fps. I have tried cheaper ND filters but they had vignetting and poor image quality. With the K&F filter the clarity is great and the build quality is solid and durable. The included case firmly holds the filter. This ND filter is a great value and much better than the other lesser ND filters I have tried. I have included photos with the same camera settings without any filter, with a cheap filter and with the K&F filter. I also included a photo of the setup I use. This filter pairs perfectly with the moment 62mm filter mount. It is a game changer for anamorphic video especially when filming outside. I could not be happier with the K&F ND filter. It is superb quality and value! I totally recommend it!
Must buy ND Filter for Video! Must buy ND Filter for Video! Must buy ND Filter for Video! Must buy ND Filter for Video! Must buy ND Filter for Video!
07/11/2020
5
Works great for long exposures when it is still light outside.
Works great for long exposures when it is still light outside. Works great for long exposures when it is still light outside. Works great for long exposures when it is still light outside. Works great for long exposures when it is still light outside.
17/11/2019
5
I love this for video work!
I shoot with the Fujifillm X-T3 which arguably is the best video camera under $3000. However it lacked the variable ND filters that you would find built in to more professional video camera. I needed some more motion blur and lower my exposure when shooting video and this does it amazingly without any noticeable loss of details and colors. For the price this is a very valuable tool in my arsenal. The build quality is really nice with an all metal construction. The ring itself is smooth and allows for a nice variable exposure change. I really dig this ND filter and I think anyone should take a look at this since the image it produces are pretty clean.
I love this for video work! I love this for video work! I love this for video work!
25/03/2019
Gallery

These images belong to K&F Concept end users.

FAQs
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A
If your tamron 28-75 lens is 67mm, the two filters both work for your lens. Please verify your camera's lens thread size before purchase (usually marked somewhere on the lens barrel or printed underneath the lens cap).The number is always preceded by a "ø" (diameter) symbol the two lens difference is the stops. 
A
For this series, front thread diameter is bigger than the back thread diameter. for example: Back thread diameter (attach to lens): 40.5mm Front thread diameter (attach additional filter/other accessories): 43mm ND FILTER size front thread 37mm 40.5mm 40.5mm 43mm 43mm 46mm 46mm 49mm 49mm 52mm 52mm 55mm 55mm 58mm 58mm 62mm 62mm 67mm 67mm 72mm 72mm 77mm 77mm 82mm 82mm 86mm 
A
Hi, this variable nd filter supports no vignetting range is 24mm. If the lens out of this range (such as 14),there would be a little vignetting on images. 
A
Yes, the nd filter could stop at the end of the ranges. 
A
Female threads 
Specification
Filter
Size 40.5mm
Transmittance
Multi-Coating
Antireflection
Waterproof
scratch-resistant
HD
Filter Material Optical glass
Pattern
Filter Thickness 7.3mm
Shape Circle
Ring Material Aviation aluminum alloy