Hoya CPL filters HD, Pro1 or Green

[anty]

Hi All

What is the difference between the HD and Pro1 circular polarizers by Hoya ?

Also, is it worth that much more over the green CPL filter ?

Thanks

[cosmix3]

Have the Pro 1, not used the green, but the way I see it is why spend lots on a lens with quality glass, then skimp on the filter to bang on the front,

Also have the Pro 1 UV and when you look at it you would not think there is glass in it, have had the chepper UV and they wernt that clear.

[DonnaM]

I agree with Cosmix3. Take a look at the B+W MRC series as well, they are easier to clean than Hoya.

[coldpenguin]

Perhaps someone could put them in order? I know of the following 4 types from Hoya:

not so great - green, purple
unknown - grey [ UV(N) HMC ]
decent? - Pro 1D - Blue

??