Quote (Antichrist- @ Fri, Apr 10 2009, 10:43pm)
are you sure its not just that it looks like gradient because it doesent remove polarization from all directions? Imo gradient is when you add darkening layer to the filter, like on nd-filter half of it is made with -2 and other half -4, so that you can block out more light from half frame.
The filter gradients feather goes from top to bottom, and you can spin it so you can have it from bottom to top, or left to right. Depends what style you're shooting and where the sky is. (Or water sometimes)