The manufacturer advertises that there is no X-pattern here. In other words, an X-shaped distortion that occurs in the image when you set certain ND values.

These X patterns are also available here, and they cannot be visually ruled out. A variable ND filter consists in principle of two polarization filters, which are moved against each other and which thus achieve variable shading.

As a result, these X patterns are inevitable.

But I can live with that, as they only occur in certain settings and can be largely eliminated by turning them forward or backwards.

The advantage of this filter is clearly its variability, because all you have to do is take one filter with you for many shades. Professionals will turn up their noses, but as an amateur, with small photo equipment, I am delighted with this product.

The filter is very well made, fits very well on the lens so that it holds firmly but you can also easily remove it again.

The rotation of the front to adjust the ND value is simple but sufficiently firm so that the set value is not inadvertently adjusted.

The glass (s) are apparently without defects or inclusions.

The price is reasonable for the performance.

I can give it four good stars.