I picked up a pair of wide angle lenses to complement my Nikon D800 - the Nikon AF-S 18- 3.5-4.5 (used here) as my go-everywhere, travel / bush / hiking / splitboarding wide, along with the Rokinon 2.8. I'm really excited about the Rokinon - my next couple posts will explain why - but it is big and bulky and likely won't be in my bag for most outings. The 18-35 looks like it's going to be a staple, and I can't wait to put it through some more field testing.
UPDATE MAY 2016
So, apparently this image is ridiculously popular as a photoshopped sky background. From a Bengali movie poster to a local wedding photographer, a quick google image search turned up a wide range of uncredited and unauthorized uses of this image. Here are a few screenshots of offending commercial uses: