Variable ND filters are primarily used for filming, where long exposure times are required. To ensure the correct exposure at all times, it's important to be able to adjust the ND filter. Inexpensive variable ND filters usually have a yellow tint. This, of course, distorts the white balance and the image effect. Unless you want it that way. I still like using variable filters, especially for long exposures near water. But I've often been annoyed by the distorted color effect. The ND filter reviewed here is definitely not one of the cheap filters. It also comes in a very nice case when it arrives, and it even has a handle that makes it very easy to adjust it on the camera. As you can see from the images, the color effect doesn't change. The aperture, exposure time, and ISO were the same. Only the filter was adjusted. I think that clearly demonstrates the quality of the filter.
In general, I would caution against screwing the filter on too tightly or slightly crookedly, or using it in conditions of drastically changing temperatures. I've often found myself unable to get the filter off. This only worked with the appropriate filter clamp.
I haven't had any problems with this one, though.
I think it's very good. But that's just how it should be, since it costs significantly more than the budget-friendly options.
5 stars.