I bought this thinking it would save me time taking my neutral polariser off one lens and transferring to another. This was a huge mistake. The vari works well but moves too easily making adjustments and keeping the shot settings almost impossible. Autofocus spent ages hunting for the subject and could not lock on, tried manual focus with little improvement but still out of focus pictures. an other wasted purchase IMHO. The none setting on the polariser has a .2 shade to it.
14/11/2019
These are OK if you have a zoom lens on and that it's zoomed to have or more of it's max magnification. Since this is essential one polarizing lens rotating against another, there will be spottiness and distortion the further out from the center frame you go, in most cases. Not too bad if only using the center 50% or so of that filter when zoomed in.
25/10/2019
This is definitely well worth the price. In comes nicely packed with a case for it, as well as a micro fiber cloth. It works great, and I got some great shots with it
22/10/2019