Something for an UWA lens. I was amazed at how close I had to get to this crane for this shot. The Tokina is nice and wide. I have the B+W CPL on the front of the Tokina, I didn't see the exposure difference in the sky until just now, during Post-processing. I had read comments about a CPL on an Ultra Wide Lens but never really thought about it. This sky shot is after applying an aggressive gradient filter in Lightroom.