The Digital Hoya Pro 1 Filters Feature:
3mm thick Low Profile Ring with front filter threads allowing you to use additional filters or lens hoods.
With the all new Digital Multi Coating
Featuring a Black Rimmed Glass.
Rings are Knurled for easy on off lens
Black Alumite coated Black Ring to Reduce Reflections and Long Life
Filter Cases are UV Reducing
Pro 1 Digital Circular Polarizers Filters
5mm Ring with Front Threads
I just saw this: http://www.photofilter.com …1%20Circular%20Polarizers![]()
Looks like they are a better make? Can anyone chime in on this?

