Sean,


One thing that I notice recently is the Hoya HD filters. I saw them on sale on Amazon for very expensive. The new HD (harded glasses) filters are top of the line filters that Hoya makes, better than the Pro1 D series. Their CPL HD seems to loose less light than a normal CPL (which is about 2 stops) and their glass is very tough. Another improvement is that they are designed to be super easy to clean, see this video to have a better idea. I was completely like [:O] when I watched the video. The HD filters are more expensive than B&W MRC filters, but I do think that they are worth every penny now.


I'll buy into the HD ones when I'm having any of my lenses upgraded.