a graduated polarized filter

Is there such a thing as a graduated polarized filter, particularly for a cokin P filter? I would really like one on my 11-16mm to polarize the ground subjects but not the sky, as the polarizer messes up the sky on a wide angle. Has anyone ever heard of such a thing?

No. You could use a GND filter to balance the exposure of sky to land (if that's the intention) or make the adjustments via Lightroom/PS. A CPL filter reduce sreflections in mon-metalic items and that cannot be done with software though, if that was the goal.

I've never heard of such a thing. Probably the closest you could get would be a square CPL slid partially into the holder but I'm not sure how that would look. Your best bet is probably to take two shots, one polarized and one not, then merge them in Photoshop.

Take two shots...with and without the CPL. Then merge them in layers.

As you have discovered, CPLs on wide lens needed for crop bodies create problems. You have to either use a less wide lens and perhaps a pano or use a FF body with a less wide lens.

It's why most holders have multiple slots. Plate CPL and Plate GND, and you stack them

calypsob wrote in post #14343535
Is there such a thing as a graduated polarized filter, particularly for a cokin P filter? I would really like one on my 11-16mm to polarize the ground subjects but not the sky, as the polarizer messes up the sky on a wide angle. Has anyone ever heard of such a thing?

But not if you shoot with the camera in the vertical orientation...just something to remember when the composition warrants.

@ argyle: Is it because of the narrower FOV, or is it something else? I am confused...

It's the AoV. If you think about it though, a graduated CPL would be

• Pretty much impossible to build, since you can't really "transition" between polarized and unpolarized
  
• Pointless since as you rotated it the dividing line would shift orientation, so you'd be polarizing different parts of the picture as it shifted
  

argyle wrote in post #14347145
But not if you shoot with the camera in the vertical orientation...just something to remember when the composition warrants.

Not necessarily...

yep a CPL really has to do with the angle you are facing from the sun. Thanks for the tips I think Im going to try layering in PS.