rjkdds

<p>As no one has responded as yet, it looks like HDR, High Dynamic Range techique.<br />The program used is probably Photomatix by HDRsoft. This combines multiple shots at different exposures to bring contrast under control. Im sure there is other postprocessing involved as well.<br /> Im sure others will add to my assessment.<br> http://www.hdrsoft.com/</p>

<p>Using a polarizer on ultrawides will give you uneven results across the image. Half polarized, half not,,</p>