[dave9t5]

Polarisers at such wide angles? Even at 24mm there is usually a very obvious sky gradient effect when used outdoors, unless there are other applications where this isn't a problem? 

 

24mm with polarizer:

http://dave9t5.zenfolio.com/p869197257/e3bb6a67d

 

24mm with polarizer:

http://dave9t5.zenfolio.com/p869197257/h...#h266d9934


In the former, the vertical format has the same width as roughly a 50mm lens.

 

In the latter, the clouds partially obscure the lateral gradient, but the polarizer also cut a lot of glare off the asphalt and foliage.

 

That said, with 24mm you do have to be careful with composition and angle to the sun. Polarizer with 20mm is probably too limiting for me, but obviously rules are meant to be broken.