Another good product from Hoya, the polarising filter fits nicely onto any 67mm thread. Whereas many polarising filters there is some noticeable loss of light, the loss from this filter is one of the lowest ive seen. Rotating the filter on the lens is smooth and easy and creates the higher contrast and correction of reflections needed from a polariser. Careful when using wide angles as it is twice as long as most other filters of course. Professional or amateur, this filter does the job well.