[Brightcolours]

Yes, you are right. I managed to hunt down the linear polarizer and retried it.


It works but is not practical as turning the LPL also turns the CPL.


I'm surprised that you don't have issues with the Hoya ND400. I have two Hoya NDs plus a Kenko CPL which is Hoya glass, and they all have color casts. I used to use HiTech NDs but they are even worse.


Marumi on the other hand have been getting good reviews so maybe that is something the the OP (stopping down) could consider instead of the more expensive brands, if price is an issue.

I have no experience with other Hoya ND filters. A review pointed this one out to me as being pretty cast free, the reason why I chose it.