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Overall Rating 5   33
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
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
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
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
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
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
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
I have a Sony A7III with a couple of the Tamron lenses they recently release, 67mm thread on both. I used the ND for the first time on a shoot in broad daylight mid-day and loved the results. Best part is being able to dial in very easily the amount of stops I need to make the zebras go away. Smooth operation and sturdy construction. The only negative is that the lens hoods no longer fit once the ND is on. Not a deal-breaker but be aware.

EDIT: Also took it along for a trip to Lake Tahoe and it came in very handy for those longer exposures and to get more contrast out of the sky. Awesome and so easy to use!
Works great for video work. Works great for video work.
20/05/2020
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
I enjoy this filter! I have it on a 24-105 lens that I have pretty much started using exclusively except for a couple of other lenses here and there. I used to shoot all the time with a Sony FS5, and its ND filters were pretty much on this level. The first screenshot is color graded somewhat, and the other screenshot is not graded and from a different camera. I don't think you should compare the two. The important thing for me is to show the versatility you get with your images.
Sharp, no streaks, easy to use, and well made! Sharp, no streaks, easy to use, and well made!
23/09/2019
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
1. If you throw this on your camera it makes your smaller flashes very powerful.
2. I used it for a 30 second exposure at the maximum ND and did find the x was in the image..I used live view and adjusted the shadow to add more depth to the image above where the darker "X" spot existed on the maximum darkness.
3. i will buy from them all the agin..the quality of this tool for me as a professional photographer is perfect. It evens come with alit circular case to tuck into your pocket when it's not needed.
4. It's also brilliant on the lens when using your DSLR for video work! It so much easier to spin the filter to adjust for the exposure instead of messing with your F stop or shutter speed.

Bottom Line..this thing is useful and what a bargain.

I've used very expensive Neutral Density filters in the past and this is better than those.
30 second long exposures at Noon are so much fun..buy this and go play! It's a lot of fun to use.
This product is very versatile.
07/09/2019
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
I love this filter great for Photo & video.
But at 10mm on my 80D Crop sensor it casts a shadow above.
if I zoom in a bit like 14mm it goes away.

NO X, No Color cast. Great Filter... As Advertised. and Great Build...
Man Oh Man`
17/10/2018
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
I don’t know what this is supposed to do, but it makes my pictures look a lot nicer. It controls the amount of light my camera takes in like a window shade. My photos now have a premium look to them.
15/09/2021
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
It worked well I haven't tested it at the full ND setting because I haven't needed go yet
16/07/2021
XV37 49mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot, Nanotec, Ultra-Slim, Weather-Sealed
5
I was skeptical to buy any filters since I have very expensive glass but this is very impressive!! For the nerds out there, at sunset I can shoot at 1/160 and get the colorful clouds no problem
30/06/2021