K&F Concept 77mm Variable ND2-ND400 ND Lens Filter (1-9 Stops) for Camera Lens, Adjustable Neutral Density Filter with Microfiber Cleaning Cloth (B-Series)

I love the variable NDR because of it's flexibility. It's easy to see how much light you are filtering with the markings on the filter. Installation is simple. You simply screw it into place and you are ready to take those long exposure shots. I had no issues with the fit and find it easy to keep clean, like any of my other filters. I try to be kind to my filters, but I'm not perfect. I haven't noticed any issues with scratching and dust removes easily.

Excelente calidad, he tenido un par de filtros de otras marcas y siempre dejan una x extraña en la imagen.Con este filtro no sucede para nada.Un excelente producto de muy buena calidad sin tener que quitarte un ojo de la cara.

Works exactly as described, but the outer ring (ND portion) of this filter is just wide enough to keep from using the lens hood. I rarely use my lenses without the hood they came with, but will have to do so every time I want to use this filter.

Love this filter. Give that tiny bit of adjustability I needed to get my shots how I wanted them

Came early then expected ( : nice and snug on my Sony a7 iii will be using for motorsport photography etc no streaking with they micro fiber cloth. Will update photos next event I attend. The build quality for they price surpassed my expectations. 72 mm f4 70-200

I love this variable filter that I use on my Nikon D5600 DSLR. I’m an amateur photographer, kind a “B-minus” student on the technical side of things. But, I do enjoy, and am getting fairly good at, various long-exposure techniques including ICM, which can lead to blown-out/too brightly-exposed sunny outdoor shots. Learned about ND filters in my photography class. Apparently, you can take your shutter speed and aperture settings and pump them through an algorithm to determine where to set your ND filter, or which non-variable filter to use. Too complicated for me. When I set my exposure length and aperture settings with the ND filter at its “Min” setting, then point my camera at a sunlit subject, my camera will flash “Subject Too Bright”. I just start slowly rotating the variable ND filter’s ring toward “Max”. As soon as that “Subject Too Bright” message goes away, I know it’s OK to release the shutter. Perfectly exposed shot every time with this inexpensive variable ND filter.

IMpresionante lo que se logra con mucha iluminación, es un accesorio imprescindible

I got the 77mm and the 82mm and as far as budget VNDs go they're decent. But why on earth would you label them this way? On the 82mm MIN is the lightest point and MAX is the darkest. It's the exact opposite on the 77mm. Why??