K&F Concept have been creating genre defining filters for many moons now. This is my second fave filter from them. 10 stops dynamic neutral density range? Are you serious?!?!?!? Landscapes have never been easier to photograph This is all you need to shoot a killer video in natural light without murdering your highlights. The color cast is nonexistent, the colors pop, and the quality of these landscapes are TOP OF THE LINE. From the wallet it comes in to the quality of the glass K&F is the BEST filter brand out right now they understand quality.

This is a nice filter. I've been very impressed so far with the quality of K&F. It's obvious they work with photographers to get them exactly what they need - not just scientists and marketing experts. It is well thought out and functions beautifully.

I'm not seeing any distortion from the use of this filter.

I see minor color shift (yellow/green). It looks slightly better than my Tiffen viariable of the same power. It is easily neutralized in post production (or through custom white balance).

The knob/handle is fantastic for easily adjusting the ND filter. I really like having the grip. The additional grip is also a nice addition.

The case is attractive and functions well.

I do wish it had a hard "stop" on it for the minimum and maximum settings. It'll keep on spinning around and around. Not a huge deal, but it would be a nice and welcome addition.

Overall, this is a great filter.

I was pretty late to jump onto the ND filter bandwagon because I am old photographer and still to this day shoot film 90% of the time. With film, we learned how to make camera adjustments to do the same thing you would achieve with these filters. well, nearly the same thing.... I am shocked at how much simpler it is to work in harsh light, and to capture long timed exposures with using this Variable ND filter!

One question I had was "will this work with film or pretty much just for digital?" and I am happy to say that it does come in handy for film as well, but I do believe that its greatest strength is in digital photography.
This filter is one of the best quality built filters I have ever come across, its silky smooth to rotate, but has enough friction that it stays right where you set it at and does not slip to another adjustment. I could not believe my eyes, but it also acts as a mild Polarizer filter too. I was able to shoot in very harsh and bright sunlight and using the darkest setting have a exposure that was nearly 2 minutes long and was able to see right through the reflection of the water. I have never been able to do that before!

I really love the little orange nubbin that they call a "putter" on this filter too. it just makes adjusting it so much easier. I am totally sold on the use of ND filters now, and with this one being variable adjusting it is the only one i will ever need! very happy with it!

Out of the gate the first thing you’ll notice is the build quality on this filter. It it feels really solid in your hand, there are no loose parts and has a good weight to it. I like how it has little grip extenders that you can grab a hold of to turn the filter. As the filter does need a little bit of pressure to turn it, it’s nice to have these so your fingers don’t slip. I like how it has hard stops on the ND filter so you don’t accidentally turn it too far, which can mess up your image really quick regardless of what brand filter you’re using.

takes nice pictures and its not made with cheap material

ND filters are essential if you're going to be shooting with anything that may involve bright outdoors. For example, you can use an ND filters indoors to lower the exposure of an outdoor window, and then you can add lights to bring the exposure back up of your subject, that way both are perfectly exposed.

K&F Concept made the interesting design choice to add a putter, and I'm all for it. It makes the function of changing the ND value a lot easier to do than the traditional way, mostly because sometimes I've tried to rotate a part of the filter but it wasn't the part that actually controlled the ND value.

Overall, I really recommend this filter. It's fantastic!

What does a photographer do, when they're looking to create a look, for a photo session, and that look requires multiple angles of capture.. but you only have 1 ND filter for one of your 82mm lenses?

... get another ND filter, of course.

Yeah yeah.. I know, it was a corny lead in (but a very real problem we ran into a few months ago).

The fact is, I honestly don't know what happened to K&F in the last couple of years, but they went from a sort of 'Oh.. another filter manufacturer' to a 'Wow... that's a fantastic result!! Who makes that filter??'

This filter is NO exception to the above.

ND filters are often a double edged sword for photographers.. They work, and they do what you want.. kind of.

They tend to add a color shift to your images, add distortion if you have cheap glass, and can often push your camera to the point that you have to do manual shutter control... thereby requiring you to do trial and error photos.

On top of that, when you use an ND filter, especially for very long exposures, you're going to be fighting the light, as it were. As the light of the day changes, so will your exposures... and while you're doing a lot of trial and error, a 5 min exposure at noon, won't give you the same result at 5pm, so it's not like you can 'set it and forget it', so to speak.

Then, when you add the word 'Variable' to the equation.. that's when things tend to get even stranger. As you adjust the ND level, you will often find yourself experiencing strange banding, sudden lurches in exposure changes as you adjust the ring, AND that doesn't even consider the fact that so many ND filters have very loose adjustment rings, that (I kid you not) can sometimes change their setting, with a strong breeze.

This filter... WOW.. I can honestly say, I have none of the above issues. There IS still a slight color shift, but its even, and doesn't change as you increase or decrease the ND level. Also, the levels are smooth, and clear, and there seems to be no distortion... which is extremely shocking to me.

Also.. there is NO rattle or looseness in the ring, which makes me happier than it should, to be perfectly honest.

The adjustment 'putter' makes it easy to adjust without getting your fingers on the edges of the lens (makes it easier to adjust, if you need to dial up or dial back, based on light... this is especially helpful with video).

I really only have 3 complaints, and they're extremely minor.

1.) As with any filter, I'd really like to see K&F either add a magnetic mount option, or include a filter tool to make it easier to twist on or off. I know someone will say that the 'putter' makes it easier to do, but I don't trust applying pressure to a free floating multi-part filter.

2.) The case it comes in, is different from their other Nano-X series cases. It's more of a pleather type, whereas some of the others are sort of suede/denim style.

3.) Threaded front element. I know some people will say 'you NEVER stack filters!!!'. Yeah, well, there are a large number of photographers that do it.. if you don't want to, fine.. but don't argue against potential functionality.

Its works amazingly well, and doesn't interfere with the image I'm trying to capture, so the above 'complaints' are more of a wishlist, than anything else.

Definitely recommended.

This filter is great for so many different scenarios. I like how it stops at the min/max settings so you know exactly when you reach them.

These are a must buy for long exposure and any other type of shots your into. The glass is insanely clear, it's even hard to see if the glass is there until you get it in the right light. Overall, you cannot go wrong with K&F.

Oh my gosh, the putter is such a lifesaver. I've never been a fan of twisting the tiny, super-slim surface of any type of filter. ND filter, CPL filter, diffusion filters, they all lack putters! I'm certainly glad that K&F Concept decided to introduce this into their filters, including this one.

Onto the ND functionality itself, this prevents me from having to increase my shutter speed or aperture. It allows me to maintain a shallow depth of field on my subject even in broad daylight. And yes, it also works for landscape photography and other uses, but my main usage has been for taking video of people.

If you're familiar with the exposure triangle, you may recognize my situation. Reducing my aperture would remove my shallow depth of field, and increasing my shutter speed would make my subjects motion look weird, it would just look very off. There would be no motion blur, and as a result the image looks unnatural in our eyes. So, this ND filter was perfect for fulfilling that need.

Overall, I really do recommend this filter if you're looking at increasing the quality of your videos, and obviously this depends on what you're looking to use it for. If you know that you need an ND filter, don't go with the cheap glass. Go for something like this instead! It'll totally be worth it.

I love the adjustment handle on this filter. I use this on a very wide aperture lens sitting inside of a teleprompter. My previous filter didn’t turn very easily anymore and I needed to use two fingers, which meant taking some of the teleprompter apart to get in there. I also couldn’t do it while in front of the teleprompter to see if I have the right exposure. Enter this filter. I can just stick my finger in and adjust with the little handle, all while in front of the camera checking exposure. It might seem like a little thing, but it saves me a lot of time. What was a 15 minute back and forth is now a couple seconds.

The optics are fantastic. No aberrations or other other optical issues. Very high quality build as well. I recommend this filter.