I love this variable ND filter. I'm using with a Canon R6 and a Canon RF 35mm F1.8 lens. Fit and finish is impeccable and and it's easy to rotate due to the tabs set at 180 degrees on the filter. Most importantly, I'm not detecting an cross-hatching, which is a common phenomenon on variable ND filters. Also, the lens cap fits securely on the filter, but you can't use a lens hood when using the filter. That isn't a big deal to me, but it's worth noting. This filter has stayed on the lens since I received it. Couldn't be happier - highly recommended. 5 stars.

The metal, variable ND filter helps with long exposures and manages to reduce a few steps. Of course it's not as strong as an ND 1000, but for shots that aren't taken in direct sunlight, it's enough to smooth out water, for example. The processing is top and you can get nice pictures with it. Including cleaning cloth - and super case in which the ND filter is not damaged. (If you don't know: the diameter of your lens is written directly on your lens). The filter is also perfect for adhering to the 180° shutter rule when filming with DSLR /DSLM. We are convinced! Simply screw on the ND filter - done! The protective cap from the lens also fits on it :)

I ordered three of these variable ND filters for my Canon lenses and have found these filters to be of excellent quality. The filters operate in the same way a polarizing filter does. The outer rim of each filter is knurled for easy grip and adjustment. The outer lens is slightly larger than the inner lens which accomodates the view of wide angle lenses.

I love this variable ND filter. I'm using with a Canon R6 and a Canon RF 35mm F1.8 lens. Fit and finish is impeccable and and it's easy to rotate due to the tabs set at 180 degrees on the filter. Most importantly, I'm not detecting an cross-hatching, which is a common phenomenon on variable ND filters. Also, the lens cap fits securely on the filter, but you can't use a lens hood when using the filter. That isn't a big deal to me, but it's worth noting. This filter has stayed on the lens since I received it. Couldn't be happier - highly recommended. 5 stars.

The first thing I noticed about the K&F concept 82 millimeter variable ND filter, is that it was packaged super nice, and when I picked it up out of the box it felt like a quality product. It had a super nice metal finish and the two pieces glided across each other very smoothly. This was my first time using an adjustable ND filter on my camera, but I was always looking for the extra versatility and adjustable ND filter could offer versus a fixed ND filter stuck at one particular stop.

This variable ND filter definitely did not disappoint, I love how easy it is to slap onto my lens and it's so great being able to switch and adjust the power of the ND filter with a simple twist of the lenscap. In addition to its obvious uses an ND filter, I love the fact that I feel like my lenses are more protected when this is on them as well because the glass is not exposed to the elements. Overall, I am definitely convinced about using ND filters and adjustable ones more specifically, so I would definitely recommend this to anyone who's on the fence about getting an adjustable one. This one definitely does the job.

The first thing I noticed about the K&F concept 67 millimeter variable ND filter, is that it was packaged super nice, and when I picked it up out of the box it felt like a quality product. It had a super nice metal finish and the two pieces glided across each other very smoothly. This was my first time using an adjustable ND filter on my camera, but I was always looking for the extra versatility and adjustable ND filter could offer versus a fixed ND filter stuck at one particular stop.

This variable ND filter definitely did not disappoint, I love how easy it is to slap onto my lens and it's so great being able to switch and adjust the power of the ND filter with a simple twist of the lenscap. In addition to its obvious uses an ND filter, I love the fact that I feel like my lenses are more protected when this is on them as well because the glass is not exposed to the elements. Overall, I am definitely convinced about using ND filters and adjustable ones more specifically, so I would definitely recommend this to anyone who's on the fence about getting an adjustable one. This one definitely does the job.

K&F Concept's range of filters have never let me down and neither has this variable ND3-ND1000 ND filter.

This filter maintains accurate color throughout the entire range unlike other filters I've used, which is a huge plus since it saves me time in post by not having to mess with color correction.

There is no dreaded "X", even when I intentionally went too far. While I'm not sure the stated range is entirely accurate, it is close enough and provides a ton of functionality, especially given the low price point compared to other filters that offer such a great density range.

I don't experience any vignetting with this filter, which isn't as slim as others I've used. But I rarely get vignetting when using the 18-140mm lens that I tested this filter with so my experience may not be applicable to different lenses.

Stops are clearly marked on the filter, and the adjustment is smooth with a little resistance that offers good control while shooting.

That said there is one thing you should know about this filter - YOUR LENS CAP WILL NOT FIT. I wish they included a lens cap with this filter or at least stated this clearly in the description, because you'll have to either print a new lens cap or buy one that will fit over this filter.

For the 67mm filter, you'll need a 72mm lens cap.

Overall this is an excellent value for a high quality filter. I doubt you'll find another variable ND filter with this range and at this quality for a lower price.