Need a polarizer

[Hiebs915]

Again, you may not be happy with the results of a CP at 24mm or below.

Yeah, I'll have to think about it. I have a D5000 so the picture gets cropped down from 12mm. I think its closer to 18mm in reality. I've used a circular polarizer on the 11mm tokina. It worked good but sometimes only have the sky would be polarized etc.