Cokin P Holder and filter compatability

[HikerMark]

I want to get the Cokin P Filter Holder for my Canon G-11. Specs indicate handling a 84mm wide filter. The filters I want are Hitech and suppose to fit the P holder; however the specs indicate they are 85mm wide.

Is the 1 mm difference meaningful or just inconsistent measuring of what should be a standard? Any advise?

I'd get some Cokin ND filters (which would definately fit), but I cannot seem to find any that are really clear. Also, other filters are way more expensive than the Hitech filters.

I noticed alot of threads on Cokin Holders, but nothing that directly addressed my questions. Thanks for your help. Mark

 

[tirediron]

Useful article

They should fit; they clearly state that they do fit a Cokin P; why not use Cokin filters?

 

[HikerMark]

Thanks for the quick reply.

The Cokin Filters are described as "gray ND filters". I am concerned about color cast. I have read some complaints (admittedly on the web and I am not certain about their accuracy).

Also, I couldn't seem to find any Cokin gradual nd filters.
Mark