Warming Polarizer or Neutral

[kuau]

In the market for a 77mm Polarizing Filter for my Sony A900 / CZ 16-35mm and Cz 24-70mm lens.
I shoot mostly now in Northern Arizona, I have been looking at the following filters:
Hoya 77mm (Moose) Warm Circular Polarizer Glass Filter
Singh-Ray LB Warming Polarizer
Sing-Ray LB Neutral Polarizer
or..
Sony's CZ T* Polarizer.

Any thoughts?

Steven

[Jonathan Wienke]

Warming polarizers are completely unnecessary if shooting digital.

I use B+W myself, but the Singh-Ray are supposed to be good also.

[Paul Sumi]

I bought the Singh-Ray LB Warming Polarizer when it first came out.  It is very subtle, adding a touch of warmth to the blues in shadows but not obvious overall.  I haven't used it on wider than 24mm on a FF camera, so don't know if you 'll need the thin-ring version for your 16-35.

One nice thing about the LB is that it is "brighter" by 2/3rds stop than S-R's original polo filter.

It's been used in the eastern Sierra, southwest red rock country and Great Smoky Mountains.

No opinion on the neutral version, I haven't used it or seen it used yet.

Paul