Cool Surapon, thank you.
I'm waiting for more pics! I went to North Rim and Brice about a week after you, so it is nice to see your shots.
Cameras: 1DXII,5D III, 5D II. Lenses 24-70 2.8L II IS, 70-200 f4L IS, 70-200 f2.8L IS II, EF 400 5.6L, 300 2.8 IS II, Samyang 14 mm 2.8. Flashes: 600EX-RT X 2, ST-E3-RT, 580 EX II.
Plus lots of stuff that just didn't work for me