Would appreciate any advice please. I am a very happy user of an X-T1 and have a range of prime lens plus the excellent XF50-140 f2.8. I am sailing to Antarctica for 4 weeks in November to climb and ski in the area and am wrestling with whether to invest in the new X-T2 or to stick with the X-T1 and get the XF100-400 lens. Not sure I can stretch to both. I use a prime for people and general shots and would like to use a zoom (with the teleconverter) for wildlife shots that should be pretty plentiful where we are going. As I see it the costs are comparable so any thoughts with reasons would be really appreciated. Thanks all. I am a competent photographer, but not a pro.