I am an avid amateur shooter, focusing mainly on architecture and landscape. I am planning an once in a lifetime trip to Antarctica in february 2016 or 2017. I currently own a Canon EOS 6D and a 7D mark II, Sigma 12-24mm f/4.5-5.6 HSMII, Canon EF 17-40mm f/4L, Canon EF 24-105mm f/4L IS, Canon...